- dovecot - dovecot.org

OT: SASL questions
by Richard Hector 21 Aug '20

21 Aug '20

Hi all, Apologies for the somewhat off-topic questions - I'm trying to get my head around SASL, and what it is/does. I can see that a (SMTP, IMAP etc) server can offer various authentication methods, which are pre-defined and which the client can choose from. SASL then seems to define how those work. But dovecot and cyrus-sasl both seem to offer a client-server interface, usable by eg postfix, which I don't see any reference to in SASL summaries online. Is that a standard interface? ie can a client like postfix talk to either dovecot or cyrus without knowing the difference? Are there others? Is there a good reference to this somewhere, short of reading the RFCs? And is there any option (current or proposed) to let dovecot act as a client, rather than a server? Thanks, Richard

2 2

Rootless wiki page is not up to date?
by Marc Roos 20 Aug '20

20 Aug '20

If I run a docker image with the mesos containerizer and altering the dovecot config mentioned here[1] I think the root detection is incorrect because it looks like dovecot is still thinking it is root. I still get errors like: >> log(829825): Fatal: We couldn't drop root group privileges (wanted=10053(dovecot), gid=0(root), egid=0(root)) Why does it want to drop to root, if we are not even running as root? >> Error: service(ipc): chown(/var/dovecot/login/ipc-proxy, 91, 4294967295) failed: Operation not permitted Why does it want to chown, when it is not root? pop3-login: Fatal: setgid(101(dovenull)) failed with euid=10053(dovecot), gid=10053(dovecot), egid=10053(dovecot): Operation not permitted (This binary should probably be called with process group set to 101(dovenull) instead of 10053(dovecot)) [1] https://wiki.dovecot.org/HowTo/Rootless?action=edit&editor=text

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INBOX sharing does not work
by Torsten 19 Aug '20

19 Aug '20

Hello! INBOX sharing does not seem to work, although all other mailboxes work. User bar(a)example.de has shared a few mailboxes: # doveadm acl get -u bar(a)example.de INBOX ID Global Rights user=foo(a)example.de lookup read write-seen # doveadm acl get -u bar(a)example.de Sent ID Global Rights user=foo(a)example.de lookup read write-seen # doveadm acl get -u bar(a)example.de Drafts ID Global Rights user=foo(a)example.de lookup read write-seen But user foo(a)example.de can't see the shared INBOX: # doveadm mailbox list -u foo(a)example.de Trash Sent Drafts Junk shared shared/bar(a)example.de shared/bar(a)example.de/Sent shared/bar(a)example.de/Drafts INBOX A review of the ACL does not explain the behaviour: # doveadm acl debug -u foo(a)example.de shared/bar(a)example.de/INBOX doveadm(foo(a)example.de): Info: Mailbox 'INBOX' is in namespace 'shared/bar(a)example.de/' doveadm(foo(a)example.de): Info: Mailbox path: /srv/mail-storage/mailhome/example.de/bar/Maildir doveadm(foo(a)example.de): Info: Per-user private flags in mailbox: \Seen doveadm(foo(a)example.de): Info: User foo(a)example.de has rights: lookup read write-seen doveadm(foo(a)example.de): Info: Mailbox found from dovecot-acl-list doveadm(foo(a)example.de): Info: User bar(a)example.de found from ACL shared dict doveadm(foo(a)example.de): Info: Mailbox shared/bar(a)example.de/INBOX is visible in LIST ---------- doveconf -n ---------- # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-10-amd64 x86_64 Debian 10.5 # Hostname: XXX.YYYY.de auth_master_user_separator = * auth_verbose = yes first_valid_gid = 401 first_valid_uid = 401 last_valid_gid = 401 last_valid_uid = 401 mail_gid = vmail mail_home = /srv/mail-storage/mailhome/%d/%n mail_location = maildir:~/Maildir mail_plugins = " acl listescape zlib" mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = create special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / type = private } namespace shared { list = children location = maildir:/srv/mail-storage/mailhome/%%d/%%n/Maildir:INDEXPVT=~/Maildir/shared/%%d/%%n prefix = shared/%%u/ separator = / subscriptions = yes type = shared } passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes pass = yes } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile acl_shared_dict = file:/srv/mail-storage/mailhome/shared-mailboxes.db sieve = file:~/sieve;active=~/.dovecot.sieve zlib_save = gz zlib_save_level = 6 } protocols = " imap lmtp sieve" service auth { unix_listener auth-userdb { mode = 0777 } } ssl = required ssl_cert = </var/lib/dehydrated/certs/XXX.YYYY.de/fullchain.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = static } userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { mail_plugins = " acl listescape zlib sieve" } protocol imap { mail_max_userip_connections = 20 mail_plugins = " acl listescape zlib imap_acl" } ------------------------------ I don't think it is relevant, but I don't want to forget to mention that /srv/mail-storage/ is an NFS share. It would bee nice if someone has a hint. I hope it isn't a bug. Regards Torsten

2 2

pop3_migration plugin
by Andrea Gabellini 19 Aug '20

19 Aug '20

Hello, I'm trying to migrate from an old courier-IMAP server on which I made a plugin to access the individual mailboxes with a master password Emails are used in both POP3 and IMAP. I followed this guide https://wiki.dovecot.org/Migration/Dsync In the log I find these messages, which are generated by the server independently without issuing the command "doveadm backup ..." dsync-local (xxxxxxx) <yIAgHZtVPF85HwAA9osHUQ>: Error: pop3_migration: 8044 POP3 messages have no matching IMAP messages (first POP3 msg 1 UIDL UID33550-1353000352) - all IMAP messages were found (POP3 may contain more than IMAP to INBOX - you may want set pop3_migration_all_mailboxes = yes) - set pop3_migration_ignore_missing_uidls = yes or pop3_migration_ignore_extra_uidls = yes to continue anyway The mailboxes obviously have at least the "Sent", "Trash" and "Drafts" mailboxes. What should I do? Where can I find documentation of the pop3_migration plugin? Thanks, Andrea -- __________________________ Seen it all, done it all, can't remember most of it __________________________ TIM San Marino S.p.A. Andrea Gabellini Engineering R&D TIM San Marino S.p.A. - https://www.telecomitalia.sm Via Ventotto Luglio, 212 - Piano -2 47893 - Borgo Maggiore - Republic of San Marino Tel: (+378) 0549 886237 Fax: (+378) 0549 886188 -- Informativa Privacy Questa email ha per destinatari dei contatti presenti negli archivi di TIM San Marino S.p.A.. Tutte le informazioni vengono trattate e tutelate nel rispetto della normativa vigente sulla protezione dei dati personali (Reg. EU 2016/679). Per richiedere informazioni e/o variazioni e/o la cancellazione dei vostri dati presenti nei nostri archivi potete inviare una email a privacy(a)telecomitalia.sm. Avviso di Riservatezza Il contenuto di questa e-mail e degli eventuali allegati e' strettamente confidenziale e destinato alla/e persona/e a cui e' indirizzato. Se avete ricevuto per errore questa e-mail, vi preghiamo di segnalarcelo immediatamente e di cancellarla dal vostro computer. E' fatto divieto di copiare e divulgare il contenuto di questa e-mail. Ogni utilizzo abusivo delle informazioni qui contenute da parte di persone terze o comunque non indicate nella presente e-mail potra' essere perseguito ai sensi di legge.

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Sieve scripts replication not working
by Piotr Auksztulewicz 18 Aug '20

18 Aug '20

Hi all! I am a long-time dovecot user/admin on my home server, but only recently tried to configure replication. Everything seems to work except sieve scripts replication. When I upload new one on the server A, it does not replicate to server B, even if it seemingly tries to, according to debug logs. The log antry says: Replication requested by 'sieve_storage_sync_transaction_begin', priority=1 on server A, but nothing like that on server B. Server B logs show that server A is connecting to doveadm service but little else. Any ideas what could be wrong? Please see the logs below. Users and domains have been anonymized. ----- Upload ------------- $ sieve-connect -s serverA.mydomain.example -p sieve -u user(a)mydomain.example --notlsverify Sieve/IMAP Password: ReadLine support enabled. > put lists > put autosave ----- Server A log ------- Aug 18 16:05:49 serverA dovecot[60776]: managesieve-login: Login: user=<user(a)mydomain.example>, method=PLAIN, rip=<redacted>, lip=<redacted>, mpid=35651, TLS, session=<Qw4fYiet/uEKKCgK> Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: Loading modules from directory: /usr/lib/dovecot/modules Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: Module loaded: /usr/lib/dovecot/modules/lib15_notify_plugin.so Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: Module loaded: /usr/lib/dovecot/modules/lib20_replication_plugin.so Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: Pigeonhole version 0.5.4 () initializing Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: include: sieve_global is not set; it is currently not possible to include `:global' scripts. Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Using active Sieve script path: /var/vmail/user(a)mydomain.example/.sieve Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Using script storage path: /var/vmail/user(a)mydomain.example/sieve Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Using permissions from /var/vmail/user(a)mydomain.example/sieve: mode=0700 gid=-1 Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Relative path to sieve storage in active link: sieve/ Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: sync: Synchronization active Aug 18 16:05:54 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Using Sieve script path: /var/vmail/user@mydomain.example/sieve/tmp/lists_1597759554.M792097P35651.serverA.mydomain.example.sieve Aug 18 16:05:54 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file script: Opened script `lists' from `/var/vmail/user@mydomain.example/sieve/tmp/lists_1597759554.M792097P35651.serverA.mydomain.example.sieve' Aug 18 16:05:54 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: replication: Replication requested by 'sieve_storage_sync_transaction_begin', priority=1 Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: auth PASS input: user=user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example)<35652><>: Debug: auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): auth PASS input: user=user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Namespace : Using permissions from /var/vmail/user(a)mydomain.example/mail: mode=0700 gid=default Aug 18 16:05:58 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Using Sieve script path: /var/vmail/user@mydomain.example/sieve/tmp/autosave_1597759558.M923011P35651.serverA.mydomain.example.sieve Aug 18 16:05:58 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file script: Opened script `autosave' from `/var/vmail/user@mydomain.example/sieve/tmp/autosave_1597759558.M923011P35651.serverA.mydomain.example.sieve' Aug 18 16:05:58 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: replication: Replication requested by 'sieve_storage_sync_transaction_begin', priority=1 Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: auth PASS input: user=user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example)<35653><>: Debug: auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): auth PASS input: user=user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Namespace : Using permissions from /var/vmail/user(a)mydomain.example/mail: mode=0700 gid=default Aug 18 16:06:00 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Disconnected: Logged out bytes=3748/95 ----- Server B log ------- Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: auth PASS input: user=user(a)mydomain.example Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: Namespace : Using permissions from /var/vmail/user(a)mydomain.example/mail: mode=0700 gid=default Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: auth PASS input: user=user(a)mydomain.example Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: Namespace : Using permissions from /var/vmail/user(a)mydomain.example/mail: mode=0700 gid=default ----- doveconf -n ------- # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-8-amd64 x86_64 Debian 10.4 # Hostname: serverA.mydomain.example auth_failure_delay = 3 secs auth_verbose = yes auth_worker_max_count = 5 deliver_log_format = msgid=%m; from=%f: %$ disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it doveadm_port = 4551 first_valid_uid = 100 login_greeting = <redacted> mail_attribute_dict = file:mail/dovecot-attributes mail_debug = yes mail_location = maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 mail_plugins = " notify replication" mail_privileged_group = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext editheader vnd.dovecot.debug namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext.local driver = sql } plugin { mail_replica = tcp:serverB.mydomain.example sieve = ~/.sieve sieve_dir = ~/sieve sieve_extensions = +vnd.dovecot.debug +editheader sieve_user_log = ~/log/sieve.log } pop3_fast_size_lookups = yes pop3_lock_session = yes pop3_no_flag_updates = yes pop3_save_uidl = yes protocols = " imap lmtp sieve pop3" replication_max_conns = 5 service aggregator { fifo_listener replication-notify-fifo { group = root mode = 0660 user = vmail } unix_listener replication-notify { group = root mode = 0660 user = vmail } } service auth-worker { chroot = /etc/dovecot/db process_limit = 10 unix_listener auth-worker { mode = 0600 user = doveauth } user = doveauth } service auth { client_limit = 64 inet_listener sasl { address = serverA.mydomain.example port = 9192 } unix_listener auth-userdb { group = vmail mode = 0660 user = doveauth } user = doveauth } service dict-async { protocol = none } service dict { protocol = none } service director { protocol = none } service doveadm { inet_listener doveadm { address = serverA.mydomain.example port = 4551 } } service imap-hibernate { protocol = none } service imap-login { inet_listener imap { address = serverA.mydomain.example port = 143 } process_limit = 25 service_count = 1 } service imap-urlauth-login { protocol = none } service imap-urlauth-worker { protocol = none } service imap-urlauth { protocol = none } service imap { chroot = /var/vmail client_limit = 15 process_limit = 25 service_count = 32 user = vmail } service indexer-worker { process_limit = 3 user = vmail } service indexer { chroot = $base_dir } service lmtp { client_limit = 1 extra_groups = group = vmail inet_listener lmtp { address = serverA.mydomain.example port = 2306 } process_limit = 5 user = vmail } service log { user = $default_internal_user } service managesieve-login { inet_listener sieve { address = serverA.mydomain.example port = 4190 } process_limit = 3 service_count = 1 } service managesieve { chroot = /var/vmail process_limit = 3 service_count = 1 user = vmail } service pop3-login { inet_listener pop3 { port = 0 } process_limit = 3 service_count = 1 } service pop3 { chroot = /var/vmail process_limit = 3 service_count = 1 user = vmail } service replicator { unix_listener replicator-doveadm { group = root mode = 0600 user = vmail } } service submission-login { protocol = none } service tcpwrap { protocol = none } ssl_cert = </etc/dovecot/private/dovecot.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-sql.conf.ext.local driver = sql } valid_chroot_dirs = /var/vmail /etc/dovecot/db verbose_proctitle = yes protocol lmtp { mail_plugins = " notify replication sieve" } protocol imap { imap_metadata = yes } -- Piotr "Malgond" Auksztulewicz firstname(a)lastname.net

4 3

Sieve scripts replication not working
by Piotr Auksztulewicz 18 Aug '20

18 Aug '20

Hi all! I am a long-time dovecot user/admin on my home server, but only recently tried to configure replication. Everything seems to work except sieve scripts replication. When I upload new one on the server A, it does not replicate to server B, even if it seemingly tries to, according to debug logs. The log antry says: Replication requested by 'sieve_storage_sync_transaction_begin', priority=1 on server A, but nothing like that on server B. Server B logs show that server A is connecting to doveadm service but little else. Any ideas what could be wrong? Please see the logs below. Users and domains have been anonymized. ----- Upload ------------- $ sieve-connect -s serverA.mydomain.example -p sieve -u user(a)mydomain.example --notlsverify Sieve/IMAP Password: ReadLine support enabled. > put lists > put autosave ----- Server A log ------- Aug 18 16:05:49 serverA dovecot[60776]: managesieve-login: Login: user=<user(a)mydomain.example>, method=PLAIN, rip=<redacted>, lip=<redacted>, mpid=35651, TLS, session=<Qw4fYiet/uEKKCgK> Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: Loading modules from directory: /usr/lib/dovecot/modules Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: Module loaded: /usr/lib/dovecot/modules/lib15_notify_plugin.so Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: Module loaded: /usr/lib/dovecot/modules/lib20_replication_plugin.so Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: Pigeonhole version 0.5.4 () initializing Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: include: sieve_global is not set; it is currently not possible to include `:global' scripts. Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Using active Sieve script path: /var/vmail/user(a)mydomain.example/.sieve Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Using script storage path: /var/vmail/user(a)mydomain.example/sieve Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Using permissions from /var/vmail/user(a)mydomain.example/sieve: mode=0700 gid=-1 Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Relative path to sieve storage in active link: sieve/ Aug 18 16:05:49 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: sync: Synchronization active Aug 18 16:05:54 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Using Sieve script path: /var/vmail/user@mydomain.example/sieve/tmp/lists_1597759554.M792097P35651.serverA.mydomain.example.sieve Aug 18 16:05:54 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file script: Opened script `lists' from `/var/vmail/user@mydomain.example/sieve/tmp/lists_1597759554.M792097P35651.serverA.mydomain.example.sieve' Aug 18 16:05:54 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: replication: Replication requested by 'sieve_storage_sync_transaction_begin', priority=1 Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: auth PASS input: user=user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example)<35652><>: Debug: auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): auth PASS input: user=user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:55 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Namespace : Using permissions from /var/vmail/user(a)mydomain.example/mail: mode=0700 gid=default Aug 18 16:05:58 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file storage: Using Sieve script path: /var/vmail/user@mydomain.example/sieve/tmp/autosave_1597759558.M923011P35651.serverA.mydomain.example.sieve Aug 18 16:05:58 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: sieve: file script: Opened script `autosave' from `/var/vmail/user@mydomain.example/sieve/tmp/autosave_1597759558.M923011P35651.serverA.mydomain.example.sieve' Aug 18 16:05:58 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Debug: replication: Replication requested by 'sieve_storage_sync_transaction_begin', priority=1 Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: auth PASS input: user=user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example)<35653><>: Debug: auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): auth PASS input: user=user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: remote(serverB.mydomain.example): fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:59 serverA dovecot[60776]: doveadm(user(a)mydomain.example): Debug: Namespace : Using permissions from /var/vmail/user(a)mydomain.example/mail: mode=0700 gid=default Aug 18 16:06:00 serverA dovecot[60776]: managesieve(user(a)mydomain.example)<35651><Qw4fYiet/uEKKCgK>: Disconnected: Logged out bytes=3748/95 ----- Server B log ------- Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: auth PASS input: user=user(a)mydomain.example Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:55 serverB dovecot[30215]: doveadm: Debug: Namespace : Using permissions from /var/vmail/user(a)mydomain.example/mail: mode=0700 gid=default Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: auth PASS input: user=user(a)mydomain.example Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: auth USER input: user(a)mydomain.example uid=113 gid=122 home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: Effective uid=113, gid=122, home=/var/vmail/user(a)mydomain.example Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: fs: root=/var/vmail/user(a)mydomain.example/mail, index=, indexpvt=, control=, inbox=, alt= Aug 18 16:05:59 serverB dovecot[30215]: doveadm: Debug: Namespace : Using permissions from /var/vmail/user(a)mydomain.example/mail: mode=0700 gid=default ----- doveconf -n ------- # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-8-amd64 x86_64 Debian 10.4 # Hostname: serverA.mydomain.example auth_failure_delay = 3 secs auth_verbose = yes auth_worker_max_count = 5 deliver_log_format = msgid=%m; from=%f: %$ disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it doveadm_port = 4551 first_valid_uid = 100 login_greeting = <redacted> mail_attribute_dict = file:mail/dovecot-attributes mail_debug = yes mail_location = maildir:~/mail:LAYOUT=fs:DIRNAME=.MailDir:UTF-8 mail_plugins = " notify replication" mail_privileged_group = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext editheader vnd.dovecot.debug namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext.local driver = sql } plugin { mail_replica = tcp:serverB.mydomain.example sieve = ~/.sieve sieve_dir = ~/sieve sieve_extensions = +vnd.dovecot.debug +editheader sieve_user_log = ~/log/sieve.log } pop3_fast_size_lookups = yes pop3_lock_session = yes pop3_no_flag_updates = yes pop3_save_uidl = yes protocols = " imap lmtp sieve pop3" replication_max_conns = 5 service aggregator { fifo_listener replication-notify-fifo { group = root mode = 0660 user = vmail } unix_listener replication-notify { group = root mode = 0660 user = vmail } } service auth-worker { chroot = /etc/dovecot/db process_limit = 10 unix_listener auth-worker { mode = 0600 user = doveauth } user = doveauth } service auth { client_limit = 64 inet_listener sasl { address = serverA.mydomain.example port = 9192 } unix_listener auth-userdb { group = vmail mode = 0660 user = doveauth } user = doveauth } service dict-async { protocol = none } service dict { protocol = none } service director { protocol = none } service doveadm { inet_listener doveadm { address = serverA.mydomain.example port = 4551 } } service imap-hibernate { protocol = none } service imap-login { inet_listener imap { address = serverA.mydomain.example port = 143 } process_limit = 25 service_count = 1 } service imap-urlauth-login { protocol = none } service imap-urlauth-worker { protocol = none } service imap-urlauth { protocol = none } service imap { chroot = /var/vmail client_limit = 15 process_limit = 25 service_count = 32 user = vmail } service indexer-worker { process_limit = 3 user = vmail } service indexer { chroot = $base_dir } service lmtp { client_limit = 1 extra_groups = group = vmail inet_listener lmtp { address = serverA.mydomain.example port = 2306 } process_limit = 5 user = vmail } service log { user = $default_internal_user } service managesieve-login { inet_listener sieve { address = serverA.mydomain.example port = 4190 } process_limit = 3 service_count = 1 } service managesieve { chroot = /var/vmail process_limit = 3 service_count = 1 user = vmail } service pop3-login { inet_listener pop3 { port = 0 } process_limit = 3 service_count = 1 } service pop3 { chroot = /var/vmail process_limit = 3 service_count = 1 user = vmail } service replicator { unix_listener replicator-doveadm { group = root mode = 0600 user = vmail } } service submission-login { protocol = none } service tcpwrap { protocol = none } ssl_cert = </etc/dovecot/private/dovecot.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-sql.conf.ext.local driver = sql } valid_chroot_dirs = /var/vmail /etc/dovecot/db verbose_proctitle = yes protocol lmtp { mail_plugins = " notify replication sieve" } protocol imap { imap_metadata = yes } -- Piotr "Malgond" Auksztulewicz firstname(a)lastname.net

1 0

solr and dovecot 2.2.36
by Maciej Milaszewski 18 Aug '20

18 Aug '20

Hi I have dovecot-2.2.36.4 (director) + 5 nodes dovecot (dovecot-2.2.36.4) What version of Solr do you recommend ? -- Maciej Miłaszewski Starszy Administrator Systemowy IQ PL Sp. z o.o. Biuro Obsługi Klienta: e-mail: bok(a)iq.pl tel.: +48 58 326 09 90 - 94 fax: +48 58 326 09 99 Dział pomocy: https://www.iq.pl/pomoc Informacja dotycząca przetwarzania danych osobowych: https://www.iq.pl/kontakt IQ PL Sp. z o.o. z siedzibą w Gdańsku (80-298), ul. Geodetów 16, KRS 0000007725, Sąd rejestrowy: Sąd Rejonowy w Gdańsku VII Wydział KRS, kapitał zakładowy: 140.000 PLN, NIP 5832736211, REGON 192478853

3 3

Indexer error after upgrade to 2.3.11.3
by Alessio Cecchi 18 Aug '20

18 Aug '20

Hi, after the upgrade to Dovecot 2.3.11.3, from 2.3.10.1, I see frequently these errors from different users: Aug 18 11:02:35 Panic: indexer-worker(info(a)domain.com) session=<g71KISOttvS5LNVj:O3ahCyuZO18cYAAAEPCW+w>: file http-client-request.c: line 1232 (http_client_request_send_more): assertion failed: (req->payload_input != NULL) Aug 18 11:02:35 Error: indexer-worker(info(a)domain.com) session=<g71KISOttvS5LNVj:O3ahCyuZO18cYAAAEPCW+w>: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x2f) [0x7f0ee3c828bf] -> /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x26) [0x7f0ee3c829d6] -> /usr/lib64/dovecot/libdovecot.so.0(+0xeb7ba) [0x7f0ee3c8d7ba] -> /usr/lib64/dovecot/libdovecot.so.0(+0xeb801) [0x7f0ee3c8d801] -> /usr/lib64/dovecot/libdovecot.so.0(+0x42ff1) [0x7f0ee3be4ff1] -> /usr/lib64/dovecot/libdovecot.so.0(http_client_request_send_more+0x415) [0x7f0ee3c2ba25] -> /usr/lib64/dovecot/libdovecot.so.0(http_client_connection_output+0x114) [0x7f0ee3c30994] -> /usr/lib64/dovecot/libdovecot.so.0(+0x115470) [0x7f0ee3cb7470] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x55) [0x7f0ee3ca4eb5] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xdc) [0x7f0ee3ca6ebc] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x5c) [0x7f0ee3ca4fac] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f0ee3ca51f8] -> /usr/lib64/dovecot/libdovecot.so.0(+0x8a955) [0x7f0ee3c2c955] -> /usr/lib64/dovecot/libdovecot.so.0(http_client_request_finish_payload+0x21) [0x7f0ee3c2cbd1] -> /usr/lib64/dovecot/lib21_fts_solr_plugin.so(solr_connection_post_end+0x45) [0x7f0ee1c85d15] -> /usr/lib64/dovecot/lib21_fts_solr_plugin.so(+0x3fa0) [0x7f0ee1c81fa0] -> /usr/lib64/dovecot/lib20_fts_plugin.so(+0x86cc) [0x7f0ee297f6cc] -> /usr/lib64/dovecot/lib20_fts_plugin.so(fts_backend_update_deinit+0x2c) [0x7f0ee297f74c] -> /usr/lib64/dovecot/lib20_fts_plugin.so(+0xfd04) [0x7f0ee2986d04] -> /usr/lib64/dovecot/lib20_fts_plugin.so(+0xff3f) [0x7f0ee2986f3f] -> /usr/lib64/dovecot/lib10_quota_plugin.so(+0xf64b) [0x7f0ee2dc764b] -> /usr/lib64/dovecot/lib01_acl_plugin.so(+0xde43) [0x7f0ee2fdce43] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit_get_changes+0x54) [0x7f0ee3f91db4] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit+0x16) [0x7f0ee3f91e76] -> dovecot/indexer-worker [info(a)domain.com INBOX](+0x291c) [0x557584acb91c] -> dovecot/indexer-worker [info(a)domain.com INBOX](+0x2e54) [0x557584acbe54] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x55) [0x7f0ee3ca4eb5] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xdc) [0x7f0ee3ca6ebc] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x5c) [0x7f0ee3ca4fac] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f0ee3ca51f8] Aug 18 11:02:35 Error: indexer: Indexer worker disconnected, discarding 1 requests for info(a)domain.com Aug 18 11:02:35 Error: imap(info(a)domain.com) session=<g71KISOttvS5LNVj>: indexer failed to index mailbox INBOX Aug 18 11:02:35 Fatal: indexer-worker(info(a)domain.com) session=<g71KISOttvS5LNVj:O3ahCyuZO18cYAAAEPCW+w>: master: service(indexer-worker): child 24604 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) I'm using FTS with Solr 6.6.5. What is it? Thanks -- Alessio Cecchi Postmaster @ http://www.qboxmail.it https://www.linkedin.com/in/alessice

1 0

Tests failing on CentOS 6
by Peter 18 Aug '20

18 Aug '20

Getting this when attempting to build 2.3.11.3 on CentOS 6: test-mail-cache.c:176: Assert failed: strcmp(str_c(str),"123\nfoo\n456\nbar\n") "" != "123 foo 456 bar " test-mail-cache.c:176: Assert failed: strcmp(str_c(str),"123\nfoo\n456\nbar\n") "" != "123 foo 456 bar " mail cache uncommitted lookups ....................................... : FAILED Full make check output is at https://paste.centos.org/view/b48d38a9 I can provide full build logs if you want, but that's a 4M file so I'll provide it upon request. For now I'm going ot have to bypass the make check stage of the build for CentOS 6, but I worry that the failed check could be indicative of something critical. Peter

2 2

Apple Mail Since upgrade to dovecot 2.3.x unable to connect
by Johannes Rohr 18 Aug '20

18 Aug '20

|Dear all,| |a couple of days ago I upgraded our server from Ubuntu 18.04 to 20.04, thereby upgrading dovecot from 2.2.x to 2.3.x. | |Since then, some older versions of apple's mail.app (bundled with el Capitano, released in 2016) no longer connect. When I turn on SSL debugging, I see:| |Debug: SSL error: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol imap-login: Debug: SSL error: SSL_accept() syscall failed: Invalid argument| || |Unfortunately, it doesn't reveal the name of the unsupported protocol. Also, what about the failed syscall? Does dovecot try and fail to open some file?| |Here are the contents of /etc/dovecot/conf.d/10-ssl.conf:| | ssl = yes ssl_cert = </etc/ssl/letsencrypt/idaweb-mail.rooot.de/fullchain.pem ssl_key = </etc/ssl/letsencrypt/idaweb-mail.rooot.de/key.pem ssl_ca = </etc/ssl/letsencrypt/idaweb-mail.rooot.de/ca.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = </etc/dovecot/dh.pem | |I would greatly appreciate any hints! | |Cheers,| |Johannes | | | ||

6 6

MDBOX DSYNC error: Broken physical size in mailbox
by paul-dovecotlist＠trainor.nz 18 Aug '20

18 Aug '20

Hi All, I currently have a small Dovecot server (Server A) and I've installed a second dovecot mailbox server (server B) and am trying to sync mailboxes from Server A to Server B. Both servers sit behind two dovecot directors on separate hosts and have identical config files (doveconf -n output below). Mailboxes on Server A are on an NFS mount. Server A has been working fine with no issues for a couple of years. I'm running this command on Server A: doveadm sync -u #user# tcp:#newservername#:24245 Small mailboxes with few items are syncing OK.. but most mailboxes fail (sycn stops) with the following type of error: (Mailbox name, storage file, UID and sizes vary). dsync-local(#username#)<b2vTDKerOV/fAQAAZMK/0g>: Error: Mailbox INBOX: Cache /#usershomedirectory#/mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index.cache: Deleting corrupted cache record uid=9: UID 9: Broken physical size in mailbox INBOX: read(/#usershomedirectory#/mdbox/storage/m.1) failed: Cached message size larger than expected (60616 > 8688, box=INBOX, UID=9) If I run it again, I'll get the same error, but with a new UID. If I do a local migration instead of server to server, I still get the errors. e.g. doveadm sync -u #user# maildir:~/Maildir-test/ I tried running a force resync (doveadm force-resync -u #user# -f "*) but it didn't help. There's no issues from an imap client accessing any emails. Using imapsync to sync affected mailboxes works fine for example. But... if I then run a dsync on Server B (doveadm sync -u #user# maildir:~/Maildir-test/) on an account that was successfully migrated with imapsync, I get the issue again. How worried should I be about these corrupted cache records, and any ideas how to resolve? Thanks in advance for your help! Paul. --- output of doveconf -n --- # 2.3.11.3 (502c39af9): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.11 (6c69c917) # OS: Linux 5.3.0-1032-aws x86_64 Ubuntu 18.04.5 LTS hostname = ### lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes login_trusted_networks = ### mail_fsync = always mail_location = mdbox:~/mdbox mail_plugins = " acl notify replication" managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext mmap_disable = yes namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / type = private } namespace shared { list = children location = mdbox:/mailhomes/%%d/%%n/mdbox:INDEXPVT=/mailhomes/%d/%n/shared prefix = shared/%%u/ separator = / subscriptions = no type = shared } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/tmp/global-acls:cache_secs=5 mail_plugins = " acl notify replication" sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = /mailhomes/sieve/global/SpamToJunk.sieve sieve_max_actions = 32 sieve_max_redirects = 4 sieve_max_script_size = 1M sieve_quota_max_scripts = 20 sieve_quota_max_storage = 10M sieve_redirect_envelope_from = sender zlib_save = bz2 zlib_save_level = 6 } protocols = " imap lmtp sieve submission sieve" recipient_delimiter = - service doveadm { inet_listener { port = 24245 } } service imap-login { process_min_avail = 2 } service imap { process_limit = 4096 } service lmtp { inet_listener lmtp { port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 2 service_count = 1 } service managesieve { process_limit = 1024 } service submission-login { inet_listener submission { port = 587 } } ssl = required ssl_cert = </etc/dovecot/dovecot-backend.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it submission_client_workarounds = whitespace-before-path submission_host = ### submission_relay_host = ### submission_relay_ssl = starttls submission_relay_trusted = yes userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap } protocol lda { mail_plugins = " acl notify replication zlib" } protocol imap { mail_max_userip_connections = 100 mail_plugins = " acl notify replication zlib imap_acl" } protocol lmtp { mail_plugins = " acl notify replication zlib sieve" } protocol sieve { mail_max_userip_connections = 10 managesieve_implementation_string = Dovecot Pigeonhole managesieve_logout_format = bytes=%i/%o managesieve_max_compile_errors = 5 managesieve_max_line_length = 64 k } protocol submission { mail_plugins = " acl notify replication" } local ### { doveadm_password = # hidden, use -P to show it } local ### { doveadm_password = # hidden, use -P to show it }

2 1

Apple Mail Since upgrade to dovecot 2.3.x unable to connect
by Johannes Rohr 17 Aug '20

17 Aug '20

|Dear all,| |a couple of days ago I upgraded our server from Ubuntu 18.04 to 20.04, thereby upgrading dovecot from 2.2.x to 2.3.x. | |Since then, some older versions of apple's mail.app (bundled with el Capitano, released in 2016) no longer connect. When I turn on SSL debugging, I see:| |Debug: SSL error: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol imap-login: Debug: SSL error: SSL_accept() syscall failed: Invalid argument| || |Unfortunately, it doesn't reveal the name of the unsupported protocol. Also, what about the failed syscall? Does dovecot try and fail to open some file?| |Here are the contents of /etc/dovecot/conf.d/10-ssl.conf:| | ssl = yes ssl_cert = </etc/ssl/letsencrypt/idaweb-mail.rooot.de/fullchain.pem ssl_key = </etc/ssl/letsencrypt/idaweb-mail.rooot.de/key.pem ssl_ca = </etc/ssl/letsencrypt/idaweb-mail.rooot.de/ca.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = </etc/dovecot/dh.pem | |I would greatly appreciate any hints! | |Cheers,| |Johannes | | | ||

2 1

generating secure ARGON2ID passwords
by Felix Zielcke 16 Aug '20

16 Aug '20

Hello, I'm using dovecot 2.3.4.1 on a Debian buster system. with Argon2ID password scheme, it's only possible to configure the parameters used for it via the generic -r option to "doveadm pw". A higher -r will increase time and memory comsumption. But on my dual core VM it always uses p=1. So it seems the needed threads can only be changed on compile time? Will there be in future a way to explicitly specify memory, time and threads needed for Argon2ID?

2 2

Bug: GSSAPI: Unexpected NUL in auth data
by Paul Banks 16 Aug '20

16 Aug '20

Hi, After upgrading server to v2.3.11.3 (Arch linux). I can no longer connect from Evolution client to the server via GSSAPI (Kerberos). I get the following message in the log: auth: Debug: gssapi(?,x.x.x.x,<XXX>): Unexpected NUL in auth data The bug appears to have been introduced by this patch: https://github.com/dovecot/core/commit/d196f4c83c7383c17440d39eb994b4cd9ff5… Should mech_gssapi also have the MECH_SEC_ALLOW_NULS flag set? Kind regards, Paul

2 2

2.3.11.3: dsync failure
by Alexander Tsoy 16 Aug '20

16 Aug '20

Hello! dovecot 2.3.11.3 fails to backup/sync my mailbox. The mailbox is currently in mdbox format and is (mostly) lz4-compressed. See the trace below (I've added newlines to the output): # doveadm -v backup -u username mdbox:/var/vmail/username_new/mdbox dsync(username): Panic: file istream.c: line 332 (i_stream_read_memarea): assertion failed: (!stream->blocking) dsync(username): Error: Raw backtrace: #0 default_fatal_finish[0x7f1179173b29] -> #1 fatal_handler_real[0x7f1179173be0] -> #2 default_fatal_handler[0x7f1179173c3d] -> #3 i_panic[0x7f1179173e27] -> #4 i_stream_read_memarea[0x7f1179187b29] -> #5 read_more[0x7f117919519b] -> #6 read_from_buffer[0x7f117919535a] -> #7 i_stream_seekable_read[0x7f117919582e] -> #8 i_stream_seekable_stat[0x7f1179195cdf] -> #9 i_stream_stat[0x7f1179188764] -> #10 i_stream_limit_stat[0x7f1179192380] -> #11 i_stream_stat[0x7f1179188764] -> #12 i_stream_default_stat[0x7f117918a0a3] -> #13 i_stream_default_get_size[0x7f117918a282] -> #14 i_stream_get_size[0x7f1179188811] -> #15 mdbox_save_begin[0x7f11792edb85] -> #16 zlib_mail_save_compress_begin[0x7f117891b2ad] -> #17 mailbox_save_begin[0x7f11792c8f22] -> #18 mail_storage_try_copy[0x7f11792b2443] -> #19 mail_storage_copy[0x7f11792b2604] -> #20 mdbox_copy[0x7f11792ee96f] -> #21 mailbox_copy_int[0x7f11792c9611] -> #22 mailbox_copy[0x7f11792c98c2] -> #23 dsync_mailbox_save_body[0x5629fd7936a5] -> #24 dsync_mailbox_save_newmails[0x5629fd793dc3] -> #25 dsync_mailbox_import_mail[0x5629fd793eb0] -> #26 dsync_brain_recv_mail[0x5629fd78b982] -> #27 dsync_brain_sync_mails[0x5629fd78bd79] -> #28 dsync_brain_run_real[0x5629fd78576c] -> #29 dsync_brain_run[0x5629fd7859a5] -> #30 cmd_dsync_run_local[0x5629fd75e8d3] -> #31 cmd_dsync_run[0x5629fd75f3a8] -> #32 doveadm_mail_next_user[0x5629fd762f81] -> #33 doveadm_mail_single_user[0x5629fd763311] -> #34 doveadm_mail_cmd_exec[0x5629fd763963] -> #35 doveadm_mail_cmd[0x5629fd763c22] -> #36 doveadm_mail_try_run[0x5629fd7641e1] -> #37 main[0x5629fd78051d] -> #38 __libc_start_main[0x7f1178d56c00] -> #39 _start[0x5629fd74cb20] Aborted Tried different output compression types: gz, xz, zstd. dovecot 2.3.10.1 doesn't seem to have such problem. But since I already have some messages compressed with zstd, I would like to do migration using 2.3.11.x. Please let me know if I can provide any further information. I'm not on the list, so please CC me on reply. $ sudo dovecot -n # 2.3.11.3 (502c39af9): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.11 (d71e0372) # OS: Linux 5.4.58-gentoo x86_64 Gentoo Base System release 2.6 # Hostname: xxxxxxxx.xx auth_mechanisms = plain login default_client_limit = 50 default_process_limit = 10 imap_idle_notify_interval = 29 mins mail_fsync = always mail_location = mdbox:~/mdbox mail_plugins = " zlib" managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext mdbox_preallocate_space = yes namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / subscriptions = yes } passdb { args = scheme=CRYPT username_format=%n /etc/dovecot/users driver = passwd-file } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve zlib_save = xz zlib_save_level = 9 } protocols = imap lmtp service auth-worker { user = $default_internal_user } service auth { unix_listener auth-client { mode = 0660 user = mail } user = $default_internal_user } service imap-login { inet_listener imaps { port = 0 } } ssl = required ssl_cert = </etc/ssl/dovecot/server.crt ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { args = username_format=%n /etc/dovecot/users driver = passwd-file } protocol lmtp { mail_plugins = " zlib sieve" } protocol lda { mail_plugins = " zlib sieve" } local_name imap.xxxx.xx { ssl_cert = </etc/ssl/dovecot/imap.xxxx.xx.crt ssl_key = # hidden, use -P to show it } local_name imap.xxxxxxxx.xx { ssl_cert = </etc/ssl/dovecot/imap.xxxxxxxx.xx.crt ssl_key = # hidden, use -P to show it }

1 0

Doveadm error since 2.3.11.3 when run as unprivileged user
by Arjen de Korte 15 Aug '20

15 Aug '20

I allow users to run 'doveadm' for mailbox maintenance (to expunge mail for instance). Since the upgrade to 2.3.11.3, this no longer works and results in the following error message: doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-ssl.conf line 13: ssl_key: Can't open file /etc/ssl/private/de-korte.org.key: Permission denied This is no surprise, as non-privileged users are not allowed to read the private keys of the server. Question is, why is doveadm trying to read this key in the first place (it is not needed for mailbox maintenance) and why is it failing now? Regards, Arjen

4 6

User doesn't exist
by Bruno Kiste 15 Aug '20

15 Aug '20

I try to use dovecot as a MTA with postfix. But it does not accept incoming mails. Why does it not work? [root@localhost bruno]# dovecot --version 2.3.8 (9df20d2db) /var/log/maillog Aug 14 11:03:32 localhost dovecot[566097]: lmtp(566373): Connect from local Aug 14 11:03:32 localhost dovecot[566097]: lmtp(bruno(a)2c2axxx.online-server.cloud)<566373><0O+4HWRTNl9lpAgA0J78UA>: Debug: auth-master: userdb lookup(bruno(a)2c2axxx.online-server.cloud): Started userdb lookup Aug 14 11:03:32 localhost dovecot[566097]: lmtp(bruno(a)2c2axxx.online-server.cloud)<566373><0O+4HWRTNl9lpAgA0J78UA>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Connecting Aug 14 11:03:32 localhost dovecot[566097]: lmtp(bruno(a)2c2axxx.online-server.cloud)<566373><0O+4HWRTNl9lpAgA0J78UA>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Client connected (fd=16) Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug: master in: USER#0111#011bruno(a)2c2axxx.online-server.cloud#011service=lmtp Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug: passwd(bruno(a)2c2axxx.online-server.cloud): Performing userdb lookup Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: Loading modules from directory: /usr/lib64/dovecot/auth Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: Module loaded: /usr/lib64/dovecot/auth/lib20_auth_var_expand_crypt.so Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: passwd-file /etc/dovecot/users: Read 4 users in 0 secs Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: conn unix:auth-worker (pid=566367,uid=97): Server accepted connection (fd=14) Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: conn unix:auth-worker (pid=566367,uid=97): Sending version handshake Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: conn unix:auth-worker (pid=566367,uid=97): auth-worker<1>: Handling USER request Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: passwd(bruno(a)2c2axxx.online-server.cloud): Performing userdb lookup Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: passwd(bruno(a)2c2axxx.online-server.cloud): lookup Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): passwd(bruno(a)2c2axxx.online-server.cloud): unknown user - trying the next userdb Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: passwd(bruno(a)2c2axxx.online-server.cloud): Finished userdb lookup Aug 14 11:03:32 localhost dovecot[566097]: auth-worker(566374): Debug: conn unix:auth-worker (pid=566367,uid=97): auth-worker<1>: Finished Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug: passwd(bruno(a)2c2axxx.online-server.cloud): Finished userdb lookup Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug: passwd-file(bruno(a)2c2axxx.online-server.cloud): Performing userdb lookup Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug: passwd-file(bruno(a)2c2axxx.online-server.cloud): lookup: user=bruno(a)2c2axxx.online-server.cloud file=/etc/dovecot/users Aug 14 11:03:32 localhost dovecot[566097]: auth: passwd-file(bruno(a)2c2axxx.online-server.cloud): unknown user Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug: passwd-file(bruno(a)2c2axxx.online-server.cloud): Finished userdb lookup Aug 14 11:03:32 localhost dovecot[566097]: auth: Debug: userdb out: NOTFOUND#0111 Aug 14 11:03:32 localhost dovecot[566097]: lmtp(bruno(a)2c2axxx.online-server.cloud)<566373><0O+4HWRTNl9lpAgA0J78UA>: Debug: auth-master: userdb lookup(bruno(a)2c2axxx.online-server.cloud): auth USER input: Aug 14 11:03:32 localhost dovecot[566097]: lmtp(bruno(a)2c2axxx.online-server.cloud)<566373><0O+4HWRTNl9lpAgA0J78UA>: Debug: auth-master: userdb lookup(bruno(a)2c2axxx.online-server.cloud): Userdb lookup failed Aug 14 11:03:32 localhost postfix/lmtp[566372]: 4E2127802973: to=<bruno(a)2c2axxx.online-server.cloud>, relay=2c2axxx.online-server.cloud[private/dovecot-lmtp], delay=0.26, delays=0.19/0.02/0.02/0.02, dsn=5.1.1, status=bounced (host 2c2axxx.online-server.cloud[private/dovecot-lmtp] said: 550 5.1.1 <bruno(a)2c2axxx.online-server.cloud> User doesn't exist: bruno(a)2c2axxx.online-server.cloud (in reply to RCPT TO command)) [root@localhost bruno]# cat /etc/dovecot/users #user:password:uid:gid:(gecos):home:(shell):extra_fields bruno:{CRAM-MD5}88XXXee:5001:5001::/home/bruno:: mail:{CRAM-MD5}88XXXee:5001:5001::/home/mail:: nas:{CRAM-MD5}8eXXX40:5001:5001::/home/nas asys:{CRAM-MD5}99XXX09:5001:5001::/home/asys

3 3

CentOS 8 packages available
by Aki Tuomi 14 Aug '20

14 Aug '20

We are happy to announce that we have CentOS 8 packages available starting from v2.3.11.3. You can find these packages at https://repo.dovecot.org/ Regards, Aki Tuomi Open-Xchange oy

2 1

2.3.11.3 on 32bit platforms
by Christian Göttsche 14 Aug '20

14 Aug '20

See also the 32bit build failures on Debian: https://buildd.debian.org/status/package.php?p=dovecot There are some compiler warnings on 32bit architectures in test-mech.c test-mech.c: In function ‘test_mechs’: test-mech.c:326:61: warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 4 has type ‘unsigned int’ [-Wformat=] 326 | const char *testname = t_strdup_printf("auth mech %s %d/%lu", | ~~^ | | | long unsigned int | %u test-mech.c:338:12: warning: passing argument 2 of ‘test_mech_construct_apop_challenge’ from incompatible pointer type [-Wincompatible-pointer-types] 338 | &test_case->len); | ^~~~~~~~~~~~~~~ | | | size_t * {aka unsigned int *} test-mech.c:195:77: note: expected ‘long unsigned int *’ but argument is of type ‘size_t *’ {aka ‘unsigned int *’} 195 | test_mech_construct_apop_challenge(unsigned int connect_uid, unsigned long *len_r) | ~~~~~~~~~~~~~~~^~~~~ But the unit test still fails after a commit like: diff --git a/src/auth/test-mech.c b/src/auth/test-mech.c index cf05370..90c2215 100644 --- a/src/auth/test-mech.c +++ b/src/auth/test-mech.c @@ -192,7 +192,7 @@ static void test_mech_handle_challenge(struct auth_request *request, } static inline const unsigned char * -test_mech_construct_apop_challenge(unsigned int connect_uid, unsigned long *len_r) +test_mech_construct_apop_challenge(unsigned int connect_uid, size_t *len_r) { string_t *apop_challenge = t_str_new(128); @@ -323,7 +323,7 @@ static void test_mechs(void) struct test_case *test_case = &tests[running_test]; const struct mech_module *mech = test_case->mech; struct auth_request *request; - const char *testname = t_strdup_printf("auth mech %s %d/%lu", + const char *testname = t_strdup_printf("auth mech %s %d/%zu", mech->mech_name, running_test+1, N_ELEMENTS(tests));

1 0

About the changing namespace handling from v2.0 to v2.1 or later
by mizuta.takeshi＠fujitsu.com 14 Aug '20

14 Aug '20

Hi, all, Please tell me about the patch and description below. https://github.com/dovecot/core/commit/5f46b863383fc94afcd2693ecae8788cb5fd… example-config: Use a default uncommented "namespace inbox". https://doc.dovecot.org/configuration_manual/namespace/ There's a default inbox namespace added in 10-mail.conf. If the configuration doesn't explicitly specify a namespace (as was in v2.0 and older) a default namespace is created automatically. Since v2.1, namespace is enabled by default in 10-mail.conf, and "inbox" is added as a sectionname of namespace. I checked the dovecot's mail archive, but I didn't understand the reason for the change. Please tell me about followings. - Why "inbox" was added as a sectionname? - Why was namespace changed to be enabled by default? Best regards, MIZUTA Takeshi

1 0

2.3.11.3 mail_cache_open_or_create_path called with null path
by Stuart Henderson 13 Aug '20

13 Aug '20

Originally reported here - https://marc.info/?l=openbsd-ports&m=159731598419071&w=2 OpenBSD's printf functions have a (mostly annoying but occasionally useful) feature where they generate a syslog entry if printf %s format is called with a null pointer. It is tripped in lmtp/lda deliveries with 2.3.11.3: lmtp: vfprintf %s NULL in "Cache %s: " dovecot-lda: vfprintf %s NULL in "Cache %s: " src/lib-index/mail-cache.c: .. 557 struct mail_cache * 558 mail_cache_open_or_create_path(struct mail_index *index, const char *path) 559 { .. 565 cache->filepath = i_strdup(path); .. 572 event_set_append_log_prefix(cache->event, 573 t_strdup_printf("Cache %s: ", cache->filepath); .. Seems something is wrong to have this function called with no cache path?

2 1

Fix for pigeonhole 0.5.11
by Aki Tuomi 13 Aug '20

13 Aug '20

Hi! We have made a small fix to the Pigeonhole 0.5.11 tarball, please find the new tarball at https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.11.t… https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.11.t… The original released tarball is still available. The only change here is that the configure.ac file has correctly formatted version number. Regards, Aki Tuomi Open-Xchange oy

1 0

CentOS 6 packages dropped
by Aki Tuomi 13 Aug '20

13 Aug '20

Hi! We are dropping CentOS 6 packages now that we have CentOS 8 packages available. 2.3.11.3 will be last version for which CentOS 6 packages are built for https://repo.dovecot.org. Regards, Aki Tuomi Open-Xchange oy

1 0

Correcting Mail Home, Maildir and Sieve folder locations
by David White 13 Aug '20

13 Aug '20

I have Dovecot 2.3.7.2 on Ubuntu 20.04. I just migrated the server from CentOS 8, and only migrated to the CentOS 8 machine a few months ago off of CentOS 7. I am pasting `doveconf -n` at the bottom of this email. Everything is working. However, I'm trying to clean up warnings in the logs, and just discovered that I'm not managing home directories properly. (c/f https://wiki.dovecot.org/VirtualUsers/Home) This is in the logs: > Jun 28 06:09:50 mail.example.com dovecot: imap(email(a)example.com)<3786><fICEJCKpbfatQHg1>: Error: stat(/var/vmail/example.com/email@example.com/.dovecot.sieve/tmp) failed: Not a directory Can I please get a sanity check? To resolve, I've come up with a bash loop to create a home folder, and fix the existing structure for each mailbox on the system. I ran this for 1 of the domains on the system. > for i in */ ; do mv "$i" mail; mkdir "$i"; mv mail "$i"; mv "$i"/.dovecot* "$i"; done Then, I would simply edit /etc/dovecot/conf.d/10-mail.conf so that it looks like this: > mail_home = /var/vmail/%d/%u > mail_location = maildir:/var/vmail/%d/%u/mail To confirm, should all of the 'hidden' dovecot files be moved to the user's new home folder like I'm trying to do in the above script? Or are there other files that I will need to move? After running that loop above on a test server (don't worry, I would never do this in production without testing), one of the mailbox's home folder on the server looks like this: > total 56 > drwxr-xr-x 4 vmail vmail 4096 Jun 28 06:19 . > drwx------ 6 vmail vmail 4096 Jun 28 06:09 .. > -rw------- 1 vmail vmail 54 Jul 4 2019 .dovecot.lda-dupes > lrwxrwxrwx 1 vmail vmail 21 May 26 2016 .dovecot.sieve -> sieve/roundcube.sieve > -rw------- 1 vmail vmail 0 Oct 17 2016 .dovecot.sieve.log > -rw------- 1 vmail vmail 218 Jul 6 2019 .dovecot.svbin > drwx------ 277 vmail vmail 32768 Jun 28 06:19 mail > drwx------ 3 vmail vmail 4096 Feb 2 17:31 sieve ... and connecting to that mailbox over Thunderbird seems to be working fine. But I want to make sure I'm not missing anything. Here is my doveconf -n, with identifying information snipped out: > root@mail:# doveconf -n > # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf > # Pigeonhole version 0.5.7.2 () > # OS: Linux 5.4.0-39-generic x86_64 Ubuntu 20.04 LTS ext4 > # Hostname: {snip} > auth_mechanisms = plain login > mail_location = maildir:/var/vmail/%d/%u > managesieve_notify_capability = mailto > managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext > namespace inbox { > inbox = yes > location = > mailbox Drafts { > auto = subscribe > special_use = \Drafts > } > mailbox Junk { > special_use = \Junk > } > mailbox Sent { > auto = subscribe > special_use = \Sent > } > mailbox "Sent Messages" { > special_use = \Sent > } > mailbox Spam { > auto = create > special_use = \Junk > } > mailbox Trash { > auto = subscribe > special_use = \Trash > } > prefix = > } > passdb { > args = /etc/dovecot/dovecot-sql.conf.ext > driver = sql > } > plugin { > sieve = file:~/sieve;active=~/.dovecot.sieve > } > protocols = imap pop3 lmtp sieve > service auth-worker { > user = $default_internal_user > } > service auth { > unix_listener /var/spool/postfix/private/auth { > group = postfix > mode = 0666 > user = postfix > } > unix_listener auth-userdb { > group = postfix > mode = 0666 > user = vmail > } > } > service lmtp { > unix_listener /var/spool/postfix/private/dovecot-lmtp { > group = postfix > mode = 0666 > user = postfix > } > } > ssl = required > ssl_ca = </etc/ssl/certs/snip.ca-bundle > ssl_cert = </etc/ssl/certs/snip.crt > ssl_cipher_list = ALL:!LOW:!SSLv3:!EXP:!aNULL:!MD5 > ssl_key = # hidden, use -P to show it > userdb { > args = uid=vmail gid=vmail home=/var/vmail/%d/%u > driver = static > } Sent with ProtonMail Secure Email.

1 1

Pigeonhole 0.5.11 released
by Aki Tuomi 13 Aug '20

13 Aug '20

We are pleased to release pigeonhole 0.5.11. You can download it from locations below: https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3.11-pigeonhole-0.5.1… https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3.11-pigeonhole-0.5.1… Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot Aki Tuomi Open-Xchange oy --- * managesieve: managesieve_max_line_length setting is now a "size" type instead of just number of bytes. This allows using e.g. "64k" as the value. - lib-sieve: When folding white space is used in the Message-ID header, it is not stripped away correctly before the message ID value is used, causing e.g. garbled log lines at delivery.

5 9

Problems, virtual and alias, Dovecot, Neomutt, OpenSMTPD on OpenBSD
by Chris Bennett 12 Aug '20

12 Aug '20

I'm having some problems. I'm using virtual users with real domains. That is working, but the folders are not showing up properly in neomutt, for both virtual users and system users. When I use K9 on Android, the folders show up correctly. Sending is working, but I don't have auth setup right on OpenSMTPD, so I'm sending locally, not remotely (including from K9, which can't login to send). That's really probably not relevant here, but I thought I'd mention it. I'm a bit embarrassed to admit that after having to move everything off of one server super rapidly to another already working to save money, I realized that I had made some wrong assumptions. Oops but +1 for me. So now I know what to fix there and why. If anyone has a good .neomuttrc or hints, I would appreciate that help. But I can save that problem for the neomutt mailing list. Here are copies of my doveconf -n, dovecot/passwd, vaddr, vdomains and vusers. Obscured of course. Plus the DNS IP's of this server and the one other server, which isn't running dovecot yet. Everything is using maildir on both servers. DNSSEC on all but bennettconstruction.us and mail.bennettconstruction.us Is there anything wrong, missing or screwed up here? I do intend to use encrypted passwds once I get submission to OpenSMTPD working and add the right ports for that. So far, I really haven't found the three different dovecot logs to be particularly helpful, but I can send excerpts of those if helpful. Thanks. I appreciate any help. This is my first go at IMAP and someone sent me some config info a while ago, which really helped a ton. I really like this software, I used it previously a few years ago for POP3. I do find the documentation missing some sample configs with some explanations for why and how. At some point I would like to add some more complicated things, but I don't understand what some config options really do. I also understand that documentation vs. code work are always in conflict. 28 hour days would really help! :-} doveconf -n: # 2.3.10.1 (a3d0e1171): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.10 (bf8ef1c2) # OS: OpenBSD 6.7 amd64 ffs # Hostname: cowboyup.xyz auth_debug = yes auth_debug_passwords = yes auth_socket_path = /var/dovecot/auth-userdb auth_verbose = yes auth_verbose_passwords = sha1 debug_log_path = /var/log/dovecot-debug.log first_valid_uid = 1000 hostname = consulting-diy-construction.com imap_id_log = * imap_id_send = * info_log_path = /var/log/dovecot-info.log lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_client_workarounds = whitespace-before-path mailbox-for-path log_path = /var/log/dovecot.log login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c mail_debug = yes mail_location = maildir:/home/vmail/%n@%d/Maildir managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext mbox_write_locks = fcntl mmap_disable = yes namespace inbox { inbox = yes list = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = separator = / subscriptions = yes } passdb { driver = bsdauth } passdb { args = /etc/dovecot/passwd driver = passwd-file } plugin { mail_log_fields = uid box msgid size sieve = file:~/sieve;active=~/.dovecot.sieve } postmaster_address = postmaster(a)consulting-diy-construction.com protocols = imap lmtp sieve service auth-worker { user = root } service auth { unix_listener auth-userdb { group = vmail mode = 0666 user = vmail } } service dict { unix_listener dict { group = vmail mode = 0600 user = vmail } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } service_count = 1 } service imap { process_limit = 1024 } service lmtp { unix_listener lmtp { mode = 0666 } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } ssl_dh = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { driver = passwd } userdb { args = uid=vmail gid=vmail home=/home/vmail/%n@%d driver = static } verbose_ssl = yes protocol lmtp { mail_plugins = } protocol imap { mail_max_userip_connections = 10 mail_plugins = } protocol lda { mail_plugins = } local 172.107.198.230 { ssl_cert = </etc/ssl/mx.no-seas-necio.ninja.fullchain.pem ssl_key = # hidden, use -P to show it } local 172.107.198.231 { ssl_cert = </etc/ssl/mail.freedomforlife.rocks.fullchain.pem ssl_key = # hidden, use -P to show it } local 172.107.198.229 { ssl_cert = </etc/ssl/mail.consulting-diy-construction.com.fullchain.pem ssl_key = # hidden, use -P to show it } vaddr: #root(a)consulting-diy-construction.com #abuse(a)consulting-diy-construction.com #security(a)consulting-diy-construction.com #hostmaster(a)consulting-diy-construction.com webmaster(a)consulting-diy-construction.com postmaster(a)consulting-diy-construction.com ch(a)consulting-diy-construction.com fr(a)consulting-diy-construction.com ro(a)consulting-diy-construction.com di(a)no-seas-necio.ninja kl(a)no-seas-necio.ninja ff(a)freedomforlife.rocks ff6(a)freedomforlife.rocks chris-dvcot(a)freedomforlife.rocks postmaster(a)freedomforlife.rocks postmaster(a)consulting-diy-construction.com vdomains: consulting-diy-construction.com no-seas-necio.ninja freedomforlife.rocks bennettconstruction.us vusers: root(a)consulting-diy-construction.com ro(a)consulting-diy-construction.com root(a)cowboyup.xyz ro(a)consulting-diy-construction.com root(a)freedomforlife.rocks ro(a)consulting-diy-construction.com webmaster(a)consulting-diy-construction.com ro(a)consulting-diy-construction.com chris(a)cowboyup.xyz ro(a)consulting-diy-construction.com chris(a)consulting-diy-construction.com ro(a)consulting-diy-construction.com fr(a)cowboyup.xyz vmail fr fr(a)consulting-diy-construction.com ro ro(a)consulting-diy-construction.com fr(a)consulting-diy-construction.com vmail ro(a)consulting-diy-construction.com vmail di dirkly(a)no-seas-necio.ninja kl(a)no-seas-necio.ninja vmail di(a)no-seas-necio.ninja vmail chris-dvcot(a)freedomforlife.rocks vmail postmaster(a)freedomforlife.rocks vmail postmaster(a)consulting-diy-construction.com vmail dovecot/passwd: #ro@consulting-diy-construction.com:{BLF-CRYPT}$2b$MEe:::::: #ro@cowboyup.xyz:{BLF-CRYPT}$2b$MEe:::::: #ch@consulting-diy-construction.com:{BLF-CRYPT}$2b$MEe:::::: #ch@cowboyup.xyz:{BLF-CRYPT}$2b$MEe:::::: #di@no-seas-necio.ninja:{BLF-CRYPT}$2b$9QZ. #vmail:{BLF-CRYPT}$2b$fG6:::::: ro@consulting-diy-construction.com:{PLAIN}46:::::: ro@cowboyup.xyz:{PLAIN}46:::::: ro:{PLAIN}46:::::: fr@consulting-diy-construction.com:{PLAIN}46:::::: fr@cowboyup.xyz:{PLAIN}46y:::::: fr:{PLAIN}Xella#%46:::::: di:{PLAIN}Xella#%46:::::: di@no-seas-necio.ninja:{PLAIN}46:::::: di@consulting-diy-construction.com:{PLAIN}46:::::: di@cowboyup.xyz:{PLAIN}46:::::: kl@no-seas-necio.ninja:{PLAIN}46:::::: chris-dvcot@freedomforlife.rocks:{PLAIN}68:::::: postmaster@freedomforlife.rocks:{PLAIN}68:::::: postmaster@consulting-diy-construction.com:{PLAIN}68:::::: This server: OpenBSD 6.7-current (GENERIC.MP) #22: Tue Aug 11 21:29:51 MDT 2020 172.107.198.226 cowboyup.xyz 172.107.198.227 no-seas-necio.ninja 172.107.198.228 consulting-diy-construction.com 172.107.198.229 mail.consulting-diy-construction.com 172.107.198.230 mx.no-seas-necio.ninja 172.107.198.231 mail.freedomforlife.rocks 172.107.198.232 mail.bennettconstruction.us 172.107.198.233 bennettconstruction.us 172.107.198.234 capuchado.com 172.107.198.235 strengthcouragewisdom.rocks Other server: OpenBSD 6.7-current (GENERIC.MP) #22: Tue Aug 11 21:29:51 MDT 2020 172.107.202.138 freedomforlife.rocks 172.107.202.139 mail.no-seas-necio.ninja 172.107.202.140 mail.cowboyup.xyz 172.107.202.141 mail.strengthcouragewisdom.rocks 172.107.202.142 mail.capuchado.com

1 0

Can't move/delete folder "Renaming not supported across conflicting directory permissions"
by Johannes Rohr 12 Aug '20

12 Aug '20

Dear all, several users have reported that they were unable to move/delete folders using Thunderbird and they got the message "Renaming not supported across conflicting directory permissions". When I google for this message, I see hints like "your mail may not be all on the same volume", but here this is definitely not the case. All mail is in /var/mail/virtual and owned by mail:mail Curiously, when I tried the same operation in Roundcube, there was no error reported, so something about the combination of Thunderbird and Dovecot seems to be causing the error. Does anyone have advise on how I should go about tracking down the cause of the error? Thanks a lot in advance! Johannes

3 2

Replication: Mails deleted over POP3 aren't deleted at the same time from the second server
by Lukas 12 Aug '20

12 Aug '20

Hi, I have two Dovecot 2.3.8 (on RHEL 8.2) servers. Replication works great except in one situation. What works: * If one server receives an email, it is immediately available on the other server. * If an email is deleted via IMAP from one server, it is immediately deleted from the other server. What doesn't work: If a user retrieves (download + delete) an email via POP3 (Thunderbird), then the mail is only deleted from the server from which it was downloaded but not from the other server. The email is only deleted from the other server in the following situations: * If a new email arrives (triggers a sync action) * When the next full sync happens (I temporarily set replication_full_sync_interval to "1 hour") * When forcing a manual full sync (doveadm replicator replicate user_name) If I activate debug logging (mail_debug = yes), I can immediately see a replication action when an email is deleted via IMAP. However, when an email is deleted via POP3, nothing is logged (because no replication happens). Does anyone have an idea why deleting an email via POP3 isn't replicated and how to configure this? Thanks for your help. Lukas My config (it is identical on on both servers, except of the "mail_replica" and "address" parameters): auth_mechanisms = plain login auth_username_format = %n doveadm_password = # hidden, use -P to show it doveadm_port = 12345 login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k mail_gid = vmail mail_home = /var/spool/dovecot/%u mail_location = sdbox:/var/spool/dovecot/%u mail_plugins = " notify replication" mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = subscribe } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/deny.%s deny = yes driver = passwd-file } passdb { args = scheme=SSHA512 username_format=%n /etc/dovecot/passwd driver = passwd-file } plugin { mail_replica = tcps:server2.example.com:12345 sieve = ~/sieve/.dovecot.sieve } protocols = imap pop3 lmtp sieve replication_full_sync_interval = 1 hours service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = $default_internal_user } service doveadm { inet_listener { address = ... port = 12345 ssl = yes } user = vmail } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { address = ... port = 993 } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service managesieve-login { inet_listener sieve { address = ... port = 4190 } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { address = ... port = 995 } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 user = vmail } } ssl = required ssl_cert = </etc/letsencrypt/live/server1.example.com/fullchain.pem ssl_client_ca_file = /etc/pki/tls/cert.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_options = no_compression syslog_facility = local5 userdb { args = username_format=%n /etc/dovecot/passwd driver = passwd-file result_failure = return-fail result_internalfail = return-fail } protocol sieve { ssl = required } protocol lmtp { mail_plugins = " notify replication sieve" }

1 0

auth debug log entry incorrect
by Tomas Habarta 12 Aug '20

12 Aug '20

Hello, just want to report a slightly confusing log entry on auth-debug level I have encountered while setting up Kerberos auth. Users are stored in ldap, Kerberos makes use of the same ldap as its backend, goal was to enable users to use their principals in addition to simple login with mailAddress/userPassword combination. Sample entry relevant attrs: --- mailAddress: sn.gn(a)example.com mailDeliveryAddress: 123456(a)example.com uid: u123456 krbPrincipalName: u123456@REALM krbPrincipalName: user123456@REALM krbPrincipalName: alias@REALM --- with pass_attrs = =user=%{ldap:mailDeliveryAddress},=password=%{ldap:userPassword},=k5principals=%{ldap:krbPrincipalName} I can see incorrectly logged ldap search result for krbPrincipalName attr as it is written 3 times with the same value -- number is correct, values should differ. All is working ok as expected, but was a bit confusing while tuning /etc/krb5.conf on non-working remote client whilst local client had no issues (mutt). Anyway, to eventually save someone's time, this seems to be easy enough to be fixed. Thanks for this great software, Tomas dovecot[13337]: auth: Debug: ldap(sn.gn(a)example.com,10.0.9.14,<6xHsI62sJoWT+2C4>): result: mailDeliveryAddress=123456(a)example.com krbPrincipalName=u123456@REALM,u123456@REALM,u123456@REALM; krbPrincipalName,mailDeliveryAddress unused dovecot[13337]: auth: Debug: ldap(sn.gn(a)example.com,10.0.9.14,<6xHsI62sJoWT+2C4>): username changed sn.gn(a)example.com -> 123456(a)example.com dovecot[13337]: auth: Warning: ldap(123456(a)example.com,10.0.9.14,<6xHsI62sJoWT+2C4>): Multiple values found for 'krbPrincipalName', using value 'u123456@REALM' dovecot[13337]: auth: Debug: ldap(123456(a)example.com,10.0.9.14,<6xHsI62sJoWT+2C4>): Finished passdb lookup dovecot[13337]: auth: Debug: gssapi(123456(a)example.com,10.0.9.14,<6xHsI62sJoWT+2C4>): authorized by k5principals field: u123456@REALM dovecot[13337]: auth: Debug: auth(123456(a)example.com,10.0.9.14,<6xHsI62sJoWT+2C4>): Auth request finished dovecot[13337]: auth: Debug: client passdb out: OK 1 user=123456(a)example.com k5principals=u123456@REALM original_user=u123456@REALM dovecot[13337]: auth: Debug: master in: REQUEST 3251372033 13340 1 3bbd5f6931fe4e949e7822657da9e33b session_pid=13343 request_auth_token # 2.3.8 (9df20d2db): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.8 (b7b03ba2) # OS: Linux 4.18.0-193.14.2.el8_2.x86_64 x86_64 CentOS Linux release 8.2.2004 (Core)

1 0

CVE-2020-12674: Specially crafted RPA authentication message crashes auth
by Aki Tuomi 12 Aug '20

12 Aug '20

Open-Xchange Security Advisory 2020-08-12 Affected product: Dovecot IMAP server Internal reference: DOP-1869 (Bug ID) Vulnerability type: CWE-126 (Buffer over-read) Vulnerable version: 2.2 Vulnerable component: auth Fixed version: 2.3.11.3 Report confidence: Confirmed Solution status: Fix available Vendor notification: 2020-05-03 Researcher credit: Orange from DEVCORE team CVE reference: CVE-2020-12674 CVSS: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Vulnerability Details: Dovecot's RPA mechanism implementation accepts zero-length message, which leads to assert-crash later on Risk: An adversary can use this vulnerability to crash dovecot auth process repeatedly, preventing login. Steps to reproduce: (echo 'AUTH RPA'; echo -ne '\x60\x11\x06\x09\x60\x86\x48\x01\x86\xf8\x73\x01\x01\x01\x00\x04\x00\x00\x01' | base64 -w 0; echo ; echo -ne '\x60\x11\x06\x09\x60\x86\x48\x01\x86\xf8\x73\x01\x01\x00\x03A@A\x00' | base64 -w 0; echo ; echo QUIT) | nc 127.0.0.1 110 Workaround: Disable RPA authentication. Solution: Upgrade to fixed version. Best regards, Aki Tuomi Open-Xchange oy

1 0

CVE-2020-12673: Specially crafted NTML package can crash auth service
by Aki Tuomi 12 Aug '20

12 Aug '20

Open-Xchange Security Advisory 2020-08-12 Affected product: Dovecot IMAP server Internal reference: DOP-1870 (Bug ID) Vulnerability type: CWE-789 (Uncontrolled Memory Allocation) Vulnerable version: 2.2 Vulnerable component: auth Fixed version: 2.3.11.3 Report confidence: Confirmed Solution status: Fix available Vendor notification: 2020-05-03 CVE reference: CVE-2020-12673 CVSS: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Vulnerability Details: Dovecot's NTLM implementation does not correctly check message buffer size, which leads to reading past allocation which can lead to crash. Risk: An adversary can use this vulnerability to crash dovecot auth process repeatedly, preventing login. Steps to reproduce: (echo 'AUTH NTLM'; echo -ne 'NTLMSSP\x00\x01\x00\x00\x00\x00\x02\x00\x00AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' | \ base64 -w0 ;echo ;echo -ne 'NTLMSSP\x00\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00AA\x00\x00\x41\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00orange\x00'| \ base64 -w0;echo ; echo QUIT) | nc 127.0.0.1 110 Workaround: Disable NTLM authentication. Solution: Upgrade to fixed version. Best regards, Aki Tuomi Open-Xchange oy

1 0

CVE-2020-12100: Receiving mail with deeply nested MIME parts leads to resource exhaustion.
by Aki Tuomi 12 Aug '20

12 Aug '20

Open-Xchange Security Advisory 2020-08-12 Affected product: Dovecot IMAP server Internal reference: DOP-1849 (Bug ID) Vulnerability type: Uncontrolled recursion (CWE-674) Vulnerable version: 2.0 Vulnerable component: submission, lmtp, lda Fixed version: 2.3.11.3 Report confidence: Confirmed Solution status: Fix available Vendor notification: 2020-04-23 CVE reference: CVE-2020-12100 CVSS: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Vulnerability Details: Receiving mail with deeply nested MIME parts leads to resource exhaustion as Dovecot attempts to parse it. Risk: Malicious actor can cause denial of service to mail delivery by repeatedly sending mails with bad content. Workaround: Limit MIME structures in MTA. Solution: Upgrade to fixed version. Best regards, Aki Tuomi Open-Xchange oy

1 0

Dovecot v2.3.11.3 released
by Aki Tuomi 12 Aug '20

12 Aug '20

We are pleased to release v2.3.11.3. Please find it from locations below: https://dovecot.org/releases/2.3/dovecot-2.3.11.3.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.11.3.tar.gz.sig Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot Aki Tuomi Open-Xchange oy --- * CVE-2020-12100: Parsing mails with a large number of MIME parts could have resulted in excessive CPU usage or a crash due to running out of stack memory. * CVE-2020-12673: Dovecot's NTLM implementation does not correctly check message buffer size, which leads to reading past allocation which can lead to crash. * CVE-2020-10967: lmtp/submission: Issuing the RCPT command with an address that has the empty quoted string as local-part causes the lmtp service to crash. * CVE-2020-12674: Dovecot's RPA mechanism implementation accepts zero-length message, which leads to assert-crash later on. * Events: Fix inconsistency in events. See event documentation in https://doc.dovecot.org. * imap_command_finished event's cmd_name field now contains "unknown" for unknown commands. A new "cmd_input_name" field contains the command name exactly as it was sent. * lib-index: Renamed mail_cache_compress_* settings to mail_cache_purge_*. Note that these settings are mainly intended for testing and usually shouldn't be changed. * events: Renamed "index" event category to "mail-index". * events: service:<name> category is now using the name from configuration file. * dns-client: service dns_client was renamed to dns-client. * log: Prefixes generally use the service name from configuration file. For example dict-async service will now use "dict-async(pid): " log prefix instead of "dict(pid): " * *-login: Changed logging done by proxying to use a consistent prefix containing the IP address and port. * *-login: Changed disconnection log messages to be slightly clearer. + dict: Add events for dictionaries. + lib-index: Finish logging with events. + oauth2: Support local validation of JWT tokens. + stats: Add support for dynamic histograms and grouping. See https://doc.dovecot.org/configuration_manual/stats/. + imap: Implement RFC 8514: IMAP SAVEDATE + lib-index: If a long-running transaction (e.g. SORT/FETCH on a huge folder) adds a lot of data to dovecot.index.cache file, commit those changes periodically to make them visible to other concurrent sessions as well. + stats: Add OpenMetrics exporter for statistics. See https://doc.dovecot.org/configuration_manual/stats/openmetrics/. + stats: Support disabling stats-writer socket by setting stats_writer_socket_path="". - auth-worker: Process keeps slowly increasing its memory usage and eventually dies with "out of memory" due to reaching vsz_limit. - auth: Prevent potential timing attacks in authentication secret comparisons: OAUTH2 JWT-token HMAC, imap-urlauth token, crypt() result. - auth: Several auth-mechanisms allowed input to be truncated by NUL which can potentially lead to unintentional issues or even successful logins which should have failed. - auth: When auth policy returned a delay, auth_request_finished event had policy_result=ok field instead of policy_result=delayed. - auth: auth process crash when auth_policy_server_url is set to an invalid URL. - auth: Lua passdb/userdb leaks stack elements per call, eventually causing the stack to become too deep and crashing the auth or auth-worker process. - dict-ldap: Crash occurs if var_expand template expansion fails. - dict: If dict client disconnected while iteration was still running, dict process could have started using 100% CPU, although it was still handling clients. - doveadm: Running doveadm commands via proxying may hang, especially when doveadm is printing a lot of output. - imap: "MOVE * destfolder" goes to a loop copying the last mail to the destination until the imap process dies due to running out of memory. - imap: Running "UID MOVE 1:* Trash" on an empty folder goes to infinite loop. - imap: SEARCH doesn't support $. - lib-compress: Buffer over-read in zlib stream read. - lib-dns: If DNS lookup times out, lib-dns can cause crash in calling process. - lib-index: Fixed several bugs in dovecot.index.cache handling that could have caused cached data to be lost. - lib-index: Writing to >=1 GB dovecot.index.cache files may cause assert-crashes: Panic: file mail-index-util.c: line 37 (mail_index_uint32_to_offset): assertion failed: (offset < 0x40000000) - lib-mail: v2.3.11 regression: MIME parts not returned correctly by Dovecot MIME parser. - lib-ssl-iostream: Fix buggy OpenSSL error handling without assert-crashing. If there is no error available, log it as an error instead of crashing: Panic: file iostream-openssl.c: line 599 (openssl_iostream_handle_error): assertion failed: (errno != 0) - lib-ssl-iostream: ssl_key_password setting did not work. - pop3-login: Login didn't handle commands in multiple IP packets properly. This mainly affected large XCLIENT commands or a large SASL initial response parameter in the AUTH command. - pop3: pop3_deleted_flag setting was broken, causing: Panic: file seq-range-array.c: line 472 (seq_range_array_invert): assertion failed: (range[count-1].seq2 <= max_seq) - pop3-login: Login would fail with "Input buffer full" if the initial response for SASL was too long. - submission: A segfault crash may occur when the client or server disconnects while a non-transaction command like NOOP or VRFY is still being processed. - virtual: Copying/moving mails with IMAP into a virtual folder assert-crashes: Panic: file cmd-copy.c: line 152 (fetch_and_copy): assertion failed: (copy_ctx->copy_count == seq_range_count(&copy_ctx->saved_uids))

1 0

Client shows incorrect message counts
by Antonio Leding 11 Aug '20

11 Aug '20

Hello all… First, a disclaimer…I am aware that this is very likely not a Dovecot related issue but I am truly pulling whatever hair I have left out of my head and given the brain-power of this mailer, I thought someone might know what is going in here. The issues is this… I check the message counts for a given account using doveadm and get a given number. I then configure the same account in 3 mail clients: Apple Mail, Mailmate, and Thunderbird. Both the Mailmate and Thunderbird message counts match exactly with the doveadm numbers. Apple Mail is low in almost all cases. I have tried every idea I have found including: — Delete and recreate the mail account — Rebuild mailbox — Resync mailbox — Reindex Spotlight — Removing the "~/Library/Mail/V*/Envelope*” files; restart Mail — Remove the entire "~/Library/Mail/V*” directory; restart Mail So, at wit’s end and again, apologies for this not being a Dovecot-centric issue but I know you are all on top of this stuff and may have an idea… Thanks in advance...

2 7

Thanks, got replys
by Chris Bennett 11 Aug '20

11 Aug '20

I've got a mix of some receive only, some send only. I tried to slam together two different configs really fast. This helped. I'll look things over and post some configs after a bit. Thanks again! Chris Bennett

1 0

Test on sending only
by Chris Bennett 10 Aug '20

10 Aug '20

I had to move off of a server to this one too fast. Having problems If this goes through, if someone could reply to chris(a)bennettconstruction.us instead of on-list. Thanks, Chris Bennett

1 0

IMAP Permissions per IP
by Jorge Bastos 10 Aug '20

10 Aug '20

Howdy, Is it possible to define IMAP permissions per IT? What i would like to do is: * IP 1.1.1.1 IS THE ONLY ONE that has permission for EXPUNGE Is it possible? Thanks in advanced,

2 1

is there a way to run doveadm expunge with exception?
by teacup 09 Aug '20

09 Aug '20

is there a way to run this command but with exception to not delete the FLAGGED email? doveadm expunge -u user(a)email.com mailbox Inbox SENTBEFORE 90d -- Sent from: http://dovecot.2317879.n4.nabble.com/

2 2

IPv6 auth failed
by Lefteris Tsintjelis 09 Aug '20

09 Aug '20

I am using latest Windows Thunderbird 68.11.0 and dovecot 2.3.10.1_2 with FreeBSD 12.1-RELEASE-p8. Whenever I enable dovecot IPv6 and I try to login I get auth failed. Aug 09 08:36:11 imap-login: Info: Disconnected: Inactivity (auth failed, 2 attempts in 180 secs): user=<user(a)domain.com>, method=CRAM-MD5, rip=1:2:3:4::5, lip=1:2:3:6::7, TLS, session=<HZeFLGusb8IgAQZ8LNQAEgAAAAAAAAAC> Switching dovecot back to IPv4 only (listen = *) starts to work as expected. Roundcube seems to also have the same problem whenever dovecot IPv6 is enabled.

2 4

Re: [EXT] Re: mail_crypt folder keys without sql database
by Aki Tuomi 06 Aug '20

06 Aug '20

> On 06/08/2020 13:52 secure.light.0417.road <secure.light.0417.road(a)protonmail.com> wrote: > > > Ah, right. The hashed password can't be used to encrypt. > > I want to remove possibility to decrypt mails using materials in mail servers in VPS. I've thought about below scenario: > > 1. The client generates asymmetric keys in local. > 2. The client sends the public key to the dovecot in the mail server. > 3. The dovecot generates a symmetric key. > 4. The dovecot encrypts a received mail with the symmetric key. > 5. The dovecot also encrypts the symmetric key with the public key. > 6. The client get the mail and encrypted symmetric key from server into local and decrypts it using local private key. > You probably want to use PGP then. > Instead of 1 and 2, the way like "the dovecot generates all 3 and removes only private key", can be considered with docker image deployment. mail_crypt plugin is primarily intended to protect storage medium, and not end user as such. While it does support this, it's not perfect tool for it, and can be bit difficult to set up. Dovecot does not support client-supplied private keys. > > Is it possible with mail_crypt? > > narangd > Aki p.s. please keep responses on the list.

1 0

Re: [EXT] Re: mail_crypt folder keys without sql database
by Aki Tuomi 06 Aug '20

06 Aug '20

mail_crypt_private_password cannot be hashed, as it's used to encrypt the key. Aki > On 06/08/2020 10:06 secure.light.0417.road <secure.light.0417.road(a)protonmail.com> wrote: > > > I've tried to append the field "userdb_mail_crypt_private_password=<same-hashed-password-in-passwd-file>" to the end of each user line in userdb as passwd-file. And use the command below to generate keys. > > doveadm -o plugin/mail_crypt_private_password=<not-hashed-user-password> mailbox cryptokey generate -u <username> -U > > I confirmed mail encryption work properly. > > Also I've compared two "dovecot-attribute" files with and without "mail_crypt_require_encrypted_user_key = yes". Seemingly they have no difference. How to check that the private key in dovecot-attribute be encrypted properly? > > narangd > > Sent with ProtonMail Secure Email. > > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ > On Thursday, August 6, 2020 1:03 AM, Aki Tuomi <aki.tuomi(a)open-xchange.com> wrote: > > > > On 05/08/2020 18:45 secure.light.0417.road secure.light.0417.road(a)protonmail.com wrote: > > > Hello, > > > Can the mail_crypt "folder keys" feature be used with encrypted user keys in passwd-file without sql database? It seems that there is no guide in the docs. > > > Best regards, > > > narangd > > > > Dovecot stores folder and user keys into mail_attribute_dict. This does not have to be SQL database. > > > > You can also add `userdb_mail_crypt_private_password` into passwd-file to provide it if you use passwd-file as userdb. > > > > Aki

1 0

director backend failover?
by Markus Raps 06 Aug '20

06 Aug '20

Hi, i have short question for automatic failover, directors <-> backends is this still the way to go? -> https://dovecot.org/pipermail/dovecot/2012-October/138816.html https://github.com/brandond/poolmon -- Mit freundlichen Grüßen / best regards Markus Raps

1 0

mail_crypt folder keys without sql database
by secure.light.0417.road 05 Aug '20

05 Aug '20

Hello, Can the mail_crypt "folder keys" feature be used with encrypted user keys in passwd-file without sql database? It seems that there is no guide in the docs. Best regards, narangd

2 1

Migration issue
by Kishore Potnuru 05 Aug '20

05 Aug '20

Hi All, I have tried the below command to migrate the data from the old server(dovecot version: 2.0.9) to new servers(dovecot version: 2.2.36 (1f10bfa63)). But it's throwing an error. old server name: production1 new server1 name: production2 (for HA/Replication) new server2 name: production3 (for HA/Replication) I have configured replication between production2 and production3, which is working fine. The issue is, the below command I am trying is from production2 server and trying to take the data from production1 server. ------------- [root@production2 log]# doveadm backup -a All -R -u kishore(a)test.testorg.com imapc: dsync(kishore(a)test.testorg.com): Info: imapc(production1.testorg.com:143): Connected to xxx.xxx.xxx.xxx:143 (local yyy.yyy.yyy.yyy:45992) dsync(kishore(a)test.testorg.com): Warning: imapc(production1.testorg.com:143): connect(xxx.xxx.xxx.xxx, 143) timed out after 30 seconds - reconnecting (delay 0 ms) dsync(kishore(a)test.testorg.com): Info: imapc(production1.testorg.com:143): Connected to xxx.xxx.xxx.xxx:143 (local yyy.yyy.yyy.yyy:46014) dsync(kishore(a)test.testorg.com): Error: imapc(production1.testorg.com:143): connect(xxx.xxx.xxx.xxx, 143) timed out after 30 seconds - disconnecting dsync(kishore(a)test.testorg.com): Error: User initialization failed: imapc: Login to production1.testorg.com failed: Disconnected from server [root@production2 log]# -------------- I looked into the production1 (old server) logs. I see the below error. =============== Jul 28 11:14:23 auth: Fatal: Master passdb can't have pass=yes if there are no passdbs Jul 28 11:14:23 master: Error: service(auth): command startup failed, throttling =============== after the above error, I have commented "pass=yes" in production1 (old server) server, then I see the below error. ================ Jul 28 11:17:10 auth: Fatal: No passdbs specified in configuration file. PLAIN mechanism needs one Jul 28 11:17:10 master: Error: service(auth): command startup failed, throttling =============== Please suggest me on fixing the issue. Adding the dovecot.conf configuration from old and new servers: ========================================= My old server dovecot.conf (production1): ========================================= disable_plaintext_auth = no listen = * log_path = /var/log/dovecot.log mail_location = maildir:/z1dev/mail/virtual/%d/%n/Maildir/ passdb { args = /etc/dovecot/passwd driver = passwd-file master = yes pass = yes } pop3_uidl_format = %g protocols = pop3 imap ssl = yes ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=vmail gid=vmail home=/z1dev/mail/virtual/%d/%n driver = static } mail_debug = no verbose_ssl = no ========================================= My New server dovecot.conf(production2): ========================================= disable_plaintext_auth = no listen = * log_path = /var/log/dovecot.log mail_location = maildir:/z1devenv/mail/virtual/%d/%n/Maildir/ passdb { args = /etc/dovecot/passwd driver = passwd-file } pop3_uidl_format = %g protocols = pop3 imap ssl = yes ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=vmail gid=vmail home=/z1devenv/mail/virtual/%d/%n driver = static } mail_debug = yes verbose_ssl = no # Enable the replication plugin globally mail_plugins = $mail_plugins notify replication service replicator { process_min_avail = 1 } dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%u plugin { mail_replica = remote:vmail@production3.testorg.com } service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } } service replicator { unix_listener replicator-doveadm { mode = 0600 user = vmail } } replication_max_conns = 10 imapc_host = production1.testorg.com imapc_password = vmail imapc_master_user = vmail imapc_user = %u =================================== Please let me know if you need any other details. Thanks, Kishore Potnuru

3 8

How to access mailbox metadata in Lua push driver
by Ralf Becker 04 Aug '20

04 Aug '20

We're currently using the OX push driver, which is straight forward (simple web hook) and allows to store (multiple) push tokens of our webmailer direct in mailbox metadata. Only drawback is that it only supports new arriving mails in the INBOX, even mails moved via Sieve to other folders are NOT reported. Therefore we updated now to Dovecot 2.3(.10.1) to also get mails moved by user or Sieve scripts, deleted mails or flag changes. As far as I read the example Lua scripts and (a little) the Dovecot C code, the nice indirection of using mailbox metadata to a) enable push and b) store push tokens (modify reported user attribute with them) does NOT exist in the Lua driver by default. So my questions is: how can I access mailbox metadata from within the Lua script, to make eg. the example script behave like the OX driver with user_from_metadata set? I'm happy to update the Lua examples, if that's any help ... Ralf -- Ralf Becker EGroupware GmbH [www.egroupware.org] Handelsregister HRB Kaiserslautern 3587 Geschäftsführer Birgit und Ralf Becker Leibnizstr. 17, 67663 Kaiserslautern, Germany Telefon +49 631 31657-0

2 7

Question about migration 2.2 - 2.3 with replication
by Ralf Becker 03 Aug '20

03 Aug '20

Do both replication nodes need to be updated at the same time? Or can a 2.2(.36.4) node replicate with a 2.3(.10.1)? Ralf -- Ralf Becker EGroupware GmbH [www.egroupware.org] Handelsregister HRB Kaiserslautern 3587 Geschäftsführer Birgit und Ralf Becker Leibnizstr. 17, 67663 Kaiserslautern, Germany Telefon +49 631 31657-0

1 1

Trying to use solr
by Francis Augusto Medeiros-Logeay 02 Aug '20

02 Aug '20

Hi, I am finally trying to use an fts engine with dovecot. My version is 2.3.7.2 under Ubuntu 20.04. I installed solr 7.7.3 and then 8.6.0 to see if this was a version-related error. I copied the schema from 7.7.0 as many people said this was fine. I get the following error when trying to reindex a user's mailbox: doveadm(francis(a)francisaugusto.com): Error: fts_solr: Indexing failed: 400 Bad Request doveadm(francis(a)francisaugusto.com): Error: Mailbox INBOX: Transaction commit failed: FTS transaction commit failed: backend deinit doveadm(francis(a)francisaugusto.com): Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Disconnected: Connection closed (fd=10) On Solr I get this error: org.apache.solr.common.SolrException: Exception writing document id 210/9fd7941e8297d25d91600000c3fdd3da/francis(a)francisaugusto.com to the index; possible analysis error: cannot change field "box" from index options=DOCS_AND_FREQS_AND_POSITIONS to inconsistent index options=DOCS at org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:246) Parallel to this, I got some log messages on Solr before attempting to reindex the user (sorry for the garbadged text: TIME (LOCAL) LEVEL CORE LOGGER MESSAGE 7/21/2020, 6:38:47 PM WARN false x:dovecot SolrResourceLoader Solr loaded a deprecated plugin/analysis class [solr.TrieLongField]. Please consult documentation how to replace it accordingly. 7/21/2020, 6:38:47 PM WARN false x:dovecot SolrResourceLoader Solr loaded a deprecated plugin/analysis class [solr.SynonymFilterFactory]. Please consult documentation how to replace it accordingly. 7/21/2020, 6:38:47 PM WARN false x:dovecot SolrResourceLoader Solr loaded a deprecated plugin/analysis class [solr.WordDelimiterFilterFactory]. Please consult documentation how to replace it accordingly. 7/22/2020, 6:43:46 PM ERROR false x:dovecot RequestHandlerBase java.lang.IllegalStateException: Type mismatch: uid was indexed as SORTED_NUMERIC 7/22/2020, 6:43:46 PM ERROR false x:dovecot HttpSolrCall null:java.lang.IllegalStateException: Type mismatch: uid was indexed as SORTED_NUMERIC 7/22/2020, 6:43:49 PM ERROR false x:dovecot RequestHandlerBase java.lang.IllegalStateException: Type mismatch: uid was indexed as SORTED_NUMERIC 7/22/2020, 6:43:49 PM ERROR false x:dovecot HttpSolrCall null:java.lang.IllegalStateException: Type mismatch: uid was indexed as SORTED_NUMERIC 7/22/2020, 6:43:56 PM ERROR false x:dovecot RequestHandlerBase java.lang.IllegalStateException: Type mismatch: uid was indexed as SORTED_NUMERIC 7/22/2020, 6:43:56 PM ERROR false x:dovecot HttpSolrCall null:java.lang.IllegalSta Could anyone point me the right direction to make this work? Best,

3 5

Warning: Expunged message reappeared, giving a new UID with FTS enabled
by symphorien_dovecot＠xlumurb.eu 01 Aug '20

01 Aug '20

Hello, In some conditions with FTS enabled I get this warning: Warning: Expunged message reappeared, giving a new UID Here is how I can reproduce it: I have a test setup with a (postfix) virtual alias multi-alias(a)example.com which delivers emails to user1@ and user2@ If * I send an email to multi-alias@ * expunge user1@ mailbox with doveadm expunge -u user1(a)example.com mailbox Inbox ALL then the warning fires. If * FTS plugin is disabled (I tried with squat and xapian), or * multi-alias@ redirects to only user1@ * I send the email directly to user1@ then no warning. Can I just ignore the warning ? dovecot -n: # 2.3.10.1 (a3d0e1171): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.10 (bf8ef1c2) # OS: Linux 5.4.51 x86_64 ext4 # Hostname: server auth_debug = yes auth_mechanisms = plain login base_dir = /run/dovecot2 default_internal_group = dovecot2 default_internal_user = dovecot2 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_save_to_detail_mailbox = yes mail_access_groups = virtualMail mail_debug = yes mail_gid = virtualMail mail_location = maildir:/var/vmail/%d/%n:INDEX=/var/mailindex mail_plugins = " fts fts_squat quota" mail_uid = virtualMail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded- character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext imapsieve vnd.dovecot.imapsieve namespace inbox { inbox = yes location = prefix = separator = . } passdb { args = /run/dovecot2/passwd driver = passwd-file } plugin { fts = squat fts_autoindex = yes fts_autoindex_exclude = Junk fts_enforced = yes fts_squat = partial=4 full=10 imapsieve_mailbox1_before = file:/var/lib/dovecot/imap_sieve/report- spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Junk imapsieve_mailbox2_before = file:/var/lib/dovecot/imap_sieve/report- ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Junk imapsieve_mailbox2_name = * plugin = fts fts_squat quota = maildir:User quota quota_grace = 10%% quota_rule = *:storage=100G quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO sieve = file:/var/sieve/%u/scripts;active=/var/sieve/%u/active.sieve sieve_after = /var/lib/dovecot/sieve/after sieve_default = file:/var/sieve/%u/default.sieve sieve_default_name = default sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment sieve_pipe_bin_dir = /nix/store/7cdslbbivi1b3yagvw18k8m4nfs2n4ym- pipe_bin/pipe/bin sieve_plugins = sieve_imapsieve sieve_extprograms } pop3_uidl_format = %08Xv%08Xu protocols = sieve imap lmtp sendmail_path = /run/wrappers/bin/sendmail service auth { unix_listener auth { group = postfix mode = 0660 user = postfix } user = root } service lmtp { unix_listener dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service quota-status { client_limit = 1 executable = /nix/store/5b9lp6w8jzca86djawnk6aqc3n4p2mh0-dovecot- 2.3.10.1/libexec/dovecot/quota-status -p postfix inet_listener { port = 12340 } } ssl = required ssl_cert = </var/certs/cert-mail.example.com.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_prefer_server_ciphers = yes userdb { args = /run/dovecot2/passwd driver = passwd-file } verbose_ssl = yes protocol imap { mail_max_userip_connections = 100 mail_plugins = " fts fts_squat quota imap_quota imap_sieve" namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = no special_use = \Trash } prefix = } } protocol pop3 { mail_max_userip_connections = 100 } protocol lmtp { mail_plugins = " fts fts_squat quota sieve" }

1 0

Migrating from qmail server, invalid option "o" in dsync
by Justin Coleman 01 Aug '20

01 Aug '20

Hi folks, I have an old server running qmail with several years of mails in maildir format I want to migrate to a new server, without requiring fresh client download of everything. Old server is debian 6(?). Local IP is 192.168.0.1. New server is Debian 10, local IP is 192.168.0.25. I have dovecot 2.3.4.1 (latest from apt stable) installed and apparently working - if I manually copy the home directory for my account, I can connect (using thunderbird) and I get all the emails appearing as new, forcing redownload. Seems like the new config is at least functional. I'm trying to follow the migration guide at https://wiki2.dovecot.org/Migration/Dsync, but I am getting an error message: root@newserver:~# doveadm backup -R -u _user_ -o pop3c_user=_user_ -o pop3c_password=_password_ backup: invalid option -- 'o' doveadm backup [-u <user>|-A] [-S <socket_path>] [-fPRU] [-l <secs>] [-r <rawlog path>] [-m <mailbox>] [-g <mailbox_guid>] [-n <namespace> | -N] [-x <exclude>] [-s <state>] [-t <start date>] -d|<dest> Have tried this a couple different ways and according to everything i can find -o should be valid. Can anyone tell me what I'm doing wrong here? Thanks! # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-9-amd64 x86_64 Debian 10.4 # Hostname: newserver.domain.com disable_plaintext_auth = no mail_location = maildir:~/Maildir mail_privileged_group = mail namespace { hidden = yes list = no location = pop3c: prefix = POP3-MIGRATION-NS/ } namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { pop3_migration_mailbox = POP3-MIGRATION-NS/INBOX } pop3_uidl_format = %f pop3c_host = 192.168.0.1 protocols = " imap pop3" ssl = no ssl_cert = </etc/dovecot/private/dovecot.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd } protocol doveadm { mail_plugins = " pop3_migration" }

4 6

imap doesn't like my passwd
by James 31 Jul '20

31 Jul '20

I spent days on this problem. I have dovecot setup to use SSL and IMAP. I also have a pop account that I had no trouble getting working. Both use PAM authentication on Linux. openssl s_client -connect localhost:993 a login test_user test_secure_password The response I got back was: a BAD Invalid characters in atom I changed the password to "abc" and it worked. The secure password used to work but it was a different architecture (x86_64 I think). The current architecture is armhf. It may be different versions of the software too. Dovecot v2.1.7

5 7

dovecot replication and pop3 deletion
by Nigel Metheringham 30 Jul '20

30 Jul '20

Hi, I am investigating the use of dovecot for a voicemail storage system (which is effectively a SMTP/POP3 system), which we want to use replication to give us some resilience. Tests have mostly been on dovecot 2.3.8 (9df20d2db) - as packaged on Centos 8 - but I have also used a couple of similar versions on different platforms, so this is not a specific build problem. The platform has replication working, over an SSL TCP link, for delivery. With the pop3 configuration as default as is possible (although the mail_plugins are explicitly included into the protocol sections to ensure notify and replication is called for), any pop3 delete operation does not cause a notify or replication operation. The two servers show the mailboxes in a different state up until something else prods a replication into progress. I would suggest that a pop3 delete/expunge of a message should be flagged as a mailbox change can cause a notify/replication, and that the current behaviour is a bug. There are workarounds to this, and I am considering adding a note to the wiki page https://wiki.dovecot.org/Replication to flag this - not sure what your wiki editing policy is. # Workaround 1 - Change pop3 deletion to set a flag If the setting pop3_deleted_flag = '$POP3Deleted' is added, then rather than the mail being deleted, it is flagged, and this change causes a notification and replication to the other server. However since the mail is not actually deleted, you additionally need another (cron?) task to periodically remove flagged mail, for example:- doveadm expunge -A MAILBOX inbox KEYWORD '$POP3Deleted' # Workaround 2 - Use Lazy Expunge You can use the lazy_expunge plugin - this has the same effect, and automates the removal of the messages after a period of time. https://doc.dovecot.org/configuration_manual/lazy_expunge_plugin/ For example, you can set the following changed config fragments:- mail_plugins = $mail_plugins notify replication lazy_expunge namespace inbox { separator = / prefix = inbox = yes # automatic lazy expunge mailbox mailbox .EXPUNGED { autoexpunge = 3 days autoexpunge_max_mails = 1000 } } plugin { # Move messages to an .EXPUNGED mailbox lazy_expunge = .EXPUNGED } Nigel. -- [ Nigel Metheringham --------------------------- nigel(a)dotdot.cloud ] [ Ellipsis Intangible Cloudy Technologies ]

1 0

Migration issue
by Kishore Potnuru 29 Jul '20

29 Jul '20

Hi Aki & Dovecot team, Just continuing with the previous discussion "Migration from one server to 2 new servers". Hi, I have tried the same way as per your suggestion. But it's throwing an error. ------------- [root@production2 log]# doveadm backup -a All -R -u kishore(a)test.ba.com imapc: dsync(kishore(a)test.ba.com): Info: imapc(production1.baplc.com:143): Connected to xxx.xxx.xxx.xxx:143 (local yyy.yyy.yyy.yyy:45992) dsync(kishore(a)test.ba.com): Warning: imapc(production1.baplc.com:143): connect(xxx.xxx.xxx.xxx, 143) timed out after 30 seconds - reconnecting (delay 0 ms) dsync(kishore(a)test.ba.com): Info: imapc(production1.baplc.com:143): Connected to xxx.xxx.xxx.xxx:143 (local yyy.yyy.yyy.yyy:46014) dsync(kishore(a)test.ba.com): Error: imapc(production1.baplc.com:143): connect(xxx.xxx.xxx.xxx, 143) timed out after 30 seconds - disconnecting dsync(kishore(a)test.ba.com): Error: User initialization failed: imapc: Login to production1.baplc.com failed: Disconnected from server [root@production2 log]# -------------- I looked into the production1 (old server) logs. I see the below error. =============== Jul 28 11:14:23 auth: Fatal: Master passdb can't have pass=yes if there are no passdbs Jul 28 11:14:23 master: Error: service(auth): command startup failed, throttling =============== after the above error, I have commented "pass=yes" in production1 (old server) server, then I see the below error. ================ Jul 28 11:17:10 auth: Fatal: No passdbs specified in configuration file. PLAIN mechanism needs one Jul 28 11:17:10 master: Error: service(auth): command startup failed, throttling =============== Please suggest me on fixing the issue.

2 3

Migration from one server to 2 new servers
by Kishore Potnuru 28 Jul '20

28 Jul '20

Hi I am in the process/planning of moving from my existing dovecot imap/pop3 server to 2 new servers (for HA/Resilience). I will be implementing dovecot replication on new servers. Please find my current and new servers versions. My Current Production Server details: ======================== Linux OS - Red Hat Enterprise Linux Server release 6.5 (Santiago) Dovecot version - 2.0.9 Postfix version - 2.6.6 ======================== New Servers: ========================== Linux OS - Red Hat Enterprise Linux Server release 7.7 (Maipo) Dovecot version - 2.2.36 (1f10bfa63) Postfix version - 2.10.1 ========================== What is the best way to stop/copy/migrate the current production data to the new servers? I am planning the following steps. Not sure if it is correct or not. 1. Stop the Postfix services on the old server and wait for few mins. So that no new emails will be coming to the old servers. Existing emails will be delivered to the receipients. 2. copy/migrate the data from old server to new servers. Please suggest what is the best way? 3. I see that dovecot version(2.0.9) in old production server, I do not know the which is the best option? see the options in the current version. ================================= [root@prodcution ~]# doveadm usage: doveadm [-Dv] [-f <formatter>] <command> [<args>] altmove [-u <user>|-A] [-S <socket_path>] <search query> auth [-a <auth socket path>] [-x <auth info>] <user> [<password>] config [doveconf parameters] director add|flush|map|remove|status dump [-t <type>] <path> expunge [-u <user>|-A] [-S <socket_path>] <search query> fetch [-u <user>|-A] [-S <socket_path>] <fields> <search query> force-resync [-u <user>|-A] [-S <socket_path>] <mailbox> help <cmd> import [-u <user>|-A] [-S <socket_path>] <source mail location> <dest parent mailbox> <search query> kick [-a <anvil socket path>] [-f] <user mask>[|]<ip/bits> log find|reopen|test mailbox create|delete|list|mutf7|rename|status|subscribe|unsubscribe penalty [-a <anvil socket path>] [<ip/bits>] purge [-u <user>|-A] [-S <socket_path>] pw [-l] [-p plaintext] [-r rounds] [-s scheme] [-u user] [-V] reload search [-u <user>|-A] [-S <socket_path>] <search query> sis deduplicate|find stop user [-a <userdb socket path>] [-x <auth info>] <user mask> [...] ================================= Please suggest me. Thanks, Kishore Potnuru

5 24

dsync fails for existing user: "Error: Failed to initialize user: Namespace '': Mailbox list driver imapc: missing imapc_password" ?
by PGNet Dev 27 Jul '20

27 Jul '20

i'm attempting to dsync from a remote/other IMAP store to my current/new dovecot instance testing remote's IMAP access from the local/dovecot box, i can successfully login openssl s_client \ -crlf \ -4 \ -showcerts \ -bind 10.0.1.10 \ -connect remote-imap.example.com:993 \ -cert /sec/vmail/client.EC.crt.pem \ -key /sec/vmail/client.EC.key.pem \ -CAfile /sec/vmail/CA.crt.pem a1 login "testuser(a)example.net" "my!secret" a1 OK [CAPABILITY IMAP4rev1 ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE ESEARCH ESORT I18NLEVEL=1 ID IDLE LIST-EXTENDED LIST-STATUS LITERAL+ LOGIN-REFERRALS MULTIAPPEND NAMESPACE QRESYNC QUOTA RIGHTS=ektx SASL-IR SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN XLIST] LOGIN completed atm, my dovecot config includes the following, matching the ssl config above, ssl_client_ca_file = /sec/vmail/CA.crt.pem ssl_client_require_valid_cert = yes ssl_client_cert = < /sec/vmail/client.EC.crt.pem ssl_client_key = < /sec/vmail/client.EC.key.pem protocol doveadm { mail_plugins = virtual } imapc_host = remote-imap.example.com imapc_features = rfc822.size imapc_features = $imapc_features fetch-headers mail_prefetch_count = 20 imapc_port = 993 imapc_ssl = imaps imapc_ssl_verify = no dsync_features = empty-header-workaround dsync_commit_msgs_interval = 100 # default in v2.2.30+ dsync_hashed_headers = Date Message-ID and grep users.conf /etc/dovecot/conf.d/* /etc/dovecot/conf.d/10-auth.conf: args = scheme=ARGON2ID /etc/dovecot/sec/users.conf _USER="testuser(a)example.net" _PASS="my!secret" _PASS_ENC=$( doveadm pw -s ARGON2ID -p ${_PASS} ) echo "${_USER}:${_PASS_ENC}::::" >> /etc/dovecot/sec/users.conf grep testuser(a)example.net /etc/dovecot/sec/users.conf testuser@example.net:{ARGON2ID}$argon2id$v=19$m=65536,t=3,p=1$...qY:::: on exec doveadm -D -o mail_fsync=never backup -R -u "testuser(a)example.net" imapc: returns/fails, Debug: Loading modules from directory: /usr/lib64/dovecot Debug: Module loaded: /usr/lib64/dovecot/lib20_virtual_plugin.so Debug: Loading modules from directory: /usr/lib64/dovecot/doveadm Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_acl_plugin.so: undefined symbol: acl_user_module (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_expire_plugin.so: undefined symbol: expire_set_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_quota_plugin.so: undefined symbol: quota_user_module (this is usually intentional, so just ignore this message) Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_sieve_plugin.so Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_lucene_plugin.so: undefined symbol: lucene_index_iter_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_plugin.so: undefined symbol: fts_user_get_language_list (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/libdoveadm_mail_crypt_plugin.so: undefined symbol: mail_crypt_box_get_pvt_digests (this is usually intentional, so just ignore this message) doveadm(testuser(a)example.net)<>: Debug: auth-master: userdb lookup(testuser(a)example.net): Started userdb lookup doveadm(testuser(a)example.net)<>: Debug: auth-master: conn unix:/run/dovecot/auth-userdb: Connecting doveadm(testuser(a)example.net)<>: Debug: auth-master: conn unix:/run/dovecot/auth-userdb (pid=10517,uid=0): Client connected (fd=10) doveadm(testuser(a)example.net)<>: Debug: auth-master: userdb lookup(testuser(a)example.net): auth USER input: testuser(a)example.net uid=5000 gid=5000 home=/data/vmail/example.net/testuser/Maildir doveadm(testuser(a)example.net)<>: Debug: auth-master: userdb lookup(testuser(a)example.net): Finished userdb lookup (username=testuser(a)example.net uid=5000 gid=5000 home=/data/vmail/example.net/testuser/Maildir) doveadm(testuser(a)example.net): Debug: Effective uid=5000, gid=5000, home=/data/vmail/example.net/testuser/Maildir doveadm(testuser(a)example.net): Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/data/vmail/example.net/testuser/Maildir:CONTROL=/data/vma… doveadm(testuser(a)example.net): Debug: fs: root=/data/vmail/example.net/testuser/Maildir, index=/var/vmail-index/example.net/testuser, indexpvt=, control=/data/vmail/example.net/testuser/_control, inbox=/data/vmail/example.net/testuser/Maildir, alt= doveadm(testuser(a)example.net): Debug: Namespace shared: type=shared, prefix=shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:/data/vmail/example.net/testuser/Maildir:INDEXPVT=/var/vma… doveadm(testuser(a)example.net): Debug: shared: root=/run/dovecot/, index=, indexpvt=, control=, inbox=, alt= doveadm(testuser(a)example.net): Debug: Namespace virtual: type=private, prefix=virtual/, sep=/, inbox=no, hidden=no, list=yes, subscriptions=yes location=virtual:/data/vmail/virtual:INDEX=MEMORY doveadm(testuser(a)example.net): Debug: fs: root=/data/vmail/virtual, index=, indexpvt=, control=, inbox=, alt= doveadm(testuser(a)example.net): Debug: brain M: Namespace has location maildir:/data/vmail/example.net/testuser/Maildir:CONTROL=/data/vmail/exampl… doveadm(testuser(a)example.net): Debug: Namespace : Using permissions from /data/vmail/example.net/testuser/Maildir: mode=0700 gid=default dsync(testuser(a)example.net): Debug: Effective uid=5000, gid=5000, home=/data/vmail/example.net/testuser/Maildir dsync(testuser(a)example.net): Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=imapc: dsync(testuser(a)example.net): Error: Failed to initialize user: Namespace '': Mailbox list driver imapc: missing imapc_password dsync(testuser(a)example.net): Debug: auth-master: conn unix:/run/dovecot/auth-userdb (pid=10517,uid=0): Disconnected: Connection closed (fd=10) what needs to change in this^ config so that 'dsync' successfully gets/uses the "missing imapc_password" from the existing users.conf file?

2 2

Crash during "doveadm import"
by Ralf Hildebrandt 27 Jul '20

27 Jul '20

Today I was looking for some spam and issued this command: ========================================================== doveadm import -u restore(a)backup.invalid mdbox:/home/copymail2/mdbox INBOX header Reply-To bixrs.com Then I immediately got a crash: doveadm(restore(a)backup.invalid): Panic: file mail-index-util.c: line 10 (mail_index_uint32_to_offset): assertion failed: (offset < 0x40000000) doveadm(restore(a)backup.invalid): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7f757c0edf32] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f757c0ee04e] -> /usr/lib/dovecot/libdovecot.so.0(+0xe692e) [0x7f757c0f892e] -> /usr/lib/dovecot/libdovecot.so.0(+0xe6971) [0x7f757c0f8971] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f757c05321b] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_uint32_to_offset+0x70)[0x7f757c4a43c0] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_cache_add+0x83b)[0x7f757c48cf4b] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_mail_parse_header+0x449)[0x7f757c46f5f9] -> /usr/lib/dovecot/libdovecot.so.0(+0xbf2c3) [0x7f757c0d12c3] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_memarea+0x74)[0x7f757c105c94] -> /usr/lib/dovecot/libdovecot.so.0(i_stream_read+0x29) [0x7f757c105fc9]-> /usr/lib/dovecot/libdovecot.so.0(i_stream_read_data+0x3d) [0x7f757c10693d] -> /usr/lib/dovecot/libdovecot.so.0(message_parse_header_next+0x68) [0x7f757c0d79c8] -> /usr/lib/dovecot/libdovecot.so.0(message_parse_header+0x4f) [0x7f757c0d839f] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xc9741) [0x7f757c479741] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xca9f4) [0x7f757c47a9f4] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_storage_search_next_nonblock+0x10d)[0x7f757c47b1cd] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next_nonblock+0x22)[0x7f757c3fd6e2] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next+0x3d)[0x7f757c3fd74d] -> doveadm(+0x31a33) [0x559bc9c63a33] -> doveadm(+0x2c518) [0x559bc9c5e518] -> doveadm(+0x2d256) [0x559bc9c5f256] -> doveadm(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x20e) [0x559bc9c600ce]-> doveadm(doveadm_cmd_run_ver2+0x548) [0x559bc9c70fa8] -> doveadm(doveadm_cmd_try_run_ver2+0x37) [0x559bc9c70ff7] -> doveadm(main+0x1d1) [0x559bc9c4e641] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f757b653b97] -> doveadm(_start+0x2a) [0x559bc9c4eb3a] Command terminated by signal 6 Running it in gdb gives me: # gdb doveadm (gdb) set args import -u restore(a)backup.invalid mdbox:/home/copymail2/mdbox mailbox INBOX header Reply-To bixrs.com (gdb) run Starting program: /usr/bin/doveadm import -u restore(a)backup.invalid mdbox:/home/copymail2/mdbox INBOX header Reply-To bixrs.com (gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #1 0x00007ffff68ec8b1 in __GI_abort () at abort.c:79 #2 0x00007ffff73728e1 in default_fatal_finish (status=0, type=LOG_TYPE_PANIC) at failures.c:459 #3 fatal_handler_real (ctx=<optimized out>, format=<optimized out>, args=<optimized out>) at failures.c:471 #4 0x00007ffff7372971 in default_fatal_handler (ctx=<optimized out>, format=<optimized out>, args=<optimized out>) at failures.c:479 #5 0x00007ffff72cd21b in i_panic (format=format@entry=0x7ffff772dd60 "file %s: line %d (%s): assertion failed: (%s)") at failures.c:523 #6 0x00007ffff771e3c0 in mail_index_uint32_to_offset (offset=<optimized out>) at mail-index-util.c:10 #7 0x00007ffff7706f4b in mail_cache_header_fields_write (ctx=0x55555585b690, buffer=<optimized out>, buffer=<optimized out>) at mail-cache-transaction.c:609 #8 mail_cache_header_add_field (field_idx=15, ctx=0x55555585b690) at mail-cache-transaction.c:690 #9 mail_cache_add (ctx=0x55555585b690, seq=1, field_idx=field_idx@entry=15, data=0x7ffff773b736, data_size=0) at mail-cache-transaction.c:739 #10 0x00007ffff76ebc34 in index_mail_cache_add_idx (mail=mail@entry=0x55555586e8d8, field_idx=field_idx@entry=15, data=data@entry=0x7ffff773b736, data_size=data_size@entry=0) at index-mail.c:631 #11 0x00007ffff76e95f9 in index_mail_parse_header_finish (mail=<optimized out>) at index-mail-headers.c:132 #12 index_mail_parse_header (part=<optimized out>, hdr=<optimized out>, mail=<optimized out>) at index-mail-headers.c:313 #13 0x00007ffff734b2c3 in read_header (mstream=0x555555879530) at istream-header-filter.c:356 #14 i_stream_header_filter_read (stream=0x555555879530) at istream-header-filter.c:446 #15 0x00007ffff737fc94 in i_stream_read_memarea (stream=stream@entry=0x5555558795b0) at istream.c:313 #16 0x00007ffff737ffc9 in i_stream_read (stream=stream@entry=0x5555558795b0) at istream.c:271 #17 0x00007ffff738093d in i_stream_read_data (stream=0x5555558795b0, data_r=data_r@entry=0x7fffffffdc18, size_r=size_r@entry=0x7fffffffdc20, threshold=threshold@entry=1) at istream.c:745 #18 0x00007ffff73519c8 in i_stream_read_bytes (wanted=2, size_r=0x7fffffffdc20, data_r=0x7fffffffdc18, stream=<optimized out>) at ../../src/lib/istream.h:217 #19 message_parse_header_next (ctx=0x55555582e580, hdr_r=hdr_r@entry=0x7fffffffdc80) at message-header-parser.c:85 #20 0x00007ffff735239f in message_parse_header (input=<optimized out>, hdr_size=hdr_size@entry=0x0, flags=flags@entry=MESSAGE_HEADER_PARSER_FLAG_CLEAN_ONELINE, callback=callback@entry=0x7ffff76f2cb0 <search_header>, context=context@entry=0x7fffffffdcf0) at message-header-parser.c:392 #21 0x00007ffff76f3741 in search_arg_match_text (ctx=0x55555585bad0, args=0x5555558216d0) at index-search.c:759 #22 search_match_once (ctx=0x55555585bad0) at index-search.c:1398 #23 0x00007ffff76f49f4 in search_match_next (ctx=0x55555585bad0) at index-search.c:1505 #24 search_more_with_mail (mail=<optimized out>, ctx=0x55555585bad0) at index-search.c:1621 #25 search_more_with_prefetching (mail_r=<optimized out>, ctx=<optimized out>) at index-search.c:1703 #26 search_more (ctx=ctx@entry=0x55555585bad0, mail_r=mail_r@entry=0x7fffffffde20) at index-search.c:1777 #27 0x00007ffff76f51cd in index_storage_search_next_nonblock (_ctx=0x55555585bad0, mail_r=0x7fffffffdef0, tryagain_r=0x7fffffffde87) at index-search.c:1805 #28 0x00007ffff76776e2 in mailbox_search_next_nonblock (ctx=0x55555585bad0, mail_r=0x7fffffffdef0, tryagain_r=<optimized out>) at mail-storage.c:2307 #29 0x00007ffff767774d in mailbox_search_next (ctx=0x55555585bad0, mail_r=mail_r@entry=0x7fffffffdef0) at mail-storage.c:2292 #30 0x0000555555586c02 in doveadm_mail_iter_next (iter=<optimized out>, mail_r=mail_r@entry=0x7fffffffdef0) at doveadm-mail-iter.c:161 #31 0x0000555555585a33 in cmd_import_box (search_args=<optimized out>, info=0x55555584f820, dest_user=<optimized out>, ctx=0x55555581fda8) at doveadm-mail-import.c:143 #32 cmd_import_run (_ctx=0x55555581fda8, user=0x5555558374a8) at doveadm-mail-import.c:203 #33 0x0000555555580518 in doveadm_mail_next_user (ctx=ctx@entry=0x55555581fda8, error_r=error_r@entry=0x7fffffffe0d0) at doveadm-mail.c:462 #34 0x000055555558116e in doveadm_mail_single_user (ctx=ctx@entry=0x55555581fda8, error_r=error_r@entry=0x7fffffffe0d0) at doveadm-mail.c:492 #35 0x0000555555581256 in doveadm_mail_cmd_exec (ctx=ctx@entry=0x55555581fda8, wildcard_user=wildcard_user@entry=0x0) at doveadm-mail.c:653 #36 0x00005555555820ce in doveadm_cmd_ver2_to_mail_cmd_wrapper (cctx=<optimized out>) at doveadm-mail.c:1149 #37 0x0000555555592fa8 in doveadm_cmd_run_ver2 (argc=8, argv=0x5555557f6bb8, cctx=cctx@entry=0x7fffffffe2c0) at doveadm-cmd.c:575 #38 0x0000555555592ff7 in doveadm_cmd_try_run_ver2 (cmd_name=<optimized out>, argc=<optimized out>, argv=<optimized out>, cctx=0x7fffffffe2c0) at doveadm-cmd.c:497 #39 0x0000555555570641 in main (argc=<optimized out>, argv=<optimized out>) at doveadm.c:395 -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt(a)charite.de | https://www.charite.de

1 2

Problem with change file format in maildir
by turix13＠gmail.com 27 Jul '20

27 Jul '20

hi, i have a problem with a dovecot 2.2.36 (1f10bfa63) server, using maildir, some mails change the file format, the flag is modified and they appear again in the inbox as unread. ex. 1548753605.56008.server-mail,S=5935:2 (origin) 1548~RZ!.ESS:2 (modified) Could someone give me some light? thx. br. -- Sent from: http://dovecot.2317879.n4.nabble.com/

1 0

Multiple authentication instances (GSSAPI _or_ Client Certificate)
by Joakim Ekblad 27 Jul '20

27 Jul '20

Hi there, I am trying to make a paranoid IMAPS/Submission server. I'm running Ubuntu 20.04 with Dovecot 2.3.7.2 (3c910f64b). I mostly use my mail-server from the LAN/Realm where I have GSSAPI working well for both IMAPS and Submission and most other services But... I would like to be able to configure Dovecot to require mobile ("external") devices to authenticate using client certificates (with different SSL cert superset) instead of 'plain' fallback (if there is no valid Kerberos token/infrastructure). I have one SSL-certificate for the LAN-solution, but would like to have my self-signed PKI-stuff for the other solution where client certificates are used to authenticate. So. First of all. Is this a possible scenario? I'm struggling with the configuration and it seems Dovecot-configs are not accepting different authentication methods for different local listeners for different IPs etc. The only way i can think of getting this up and running is having two separate Dovecot instances (somehow) listening to different ports or even on different server hosts. What would be neat is if it would be possible to have like: auth_mechanisms = gssapi ssl :D But i know that's not how things work. I hope I'm not too unspecific. Is there any other clever ideas on how to get this use-case configured with the current version of Dovecot? I am thinking i _might_ be able to do something with stunnel to terminate the PKI authentication and still require normal plain user authentication with login/pass to get the extra security. But it does not feel clean enough. All good ideas are welcome! Stay safe! Kind regards, Joakim Ekblad

1 0

To field was not correct indexed by FTS
by TACHIBANA Masashi 27 Jul '20

27 Jul '20

Hi, This To field was not correct indexed by FTS. To: Yamada Taro <yamada(a)example.com>,=?UTF-8?B?dXNlcjJAZXhhbXBsZS5jb20=?= <user2(a)example.com>, =?UTF-8?B?dXNlcjNAZXhhbXBsZS5jb20=?= <user3(a)example.com>, user4 desu <user4(a)example.com> --> Yamada Taro <yamada(a)example.com> , user2(a)example.com And follow was correct indexed by FTS To: Yamada Taro <yamada(a)example.com>,"user2(a)example.com" <user2(a)example.com>, "user3(a)example.com" <user3(a)example.com>, user4 desu <user4(a)example.com> --> Yamada Taro <yamada(a)example.com> , user2(a)example.com <user2(a)example.com> , user3(a)example.com <user3(a)example.com> , user4 desu <user4(a)example.com> Any hint? -- TACHIBANA Masashi QUALITIA CO., LTD. mailto:tachibana@qualitia.co.jp 株式会社クオリティア https://www.qualitia.co.jp/

2 6

Dovecot serving incorrect certificate
by Antonio Leding 26 Jul '20

26 Jul '20

Hello all, I have a Dovecot (v2.3.10.1) + Postfix (v3.5.3) both cfg; d to use TLS however each using different certificates. In addition, I have cfg’d a DNS CNAME that points to the server A record. For example, mail.example.com (A) —> 1.2.3.4 alias.example.con (CNAME) —> mail.example.com When setting up a new account in Apple Mail, if I specify the server name as the “Host Name” (i.e. mil server), the cert that is cfg’d in Dovecot is received and everything works fine. However, if I instead use the alias CNAME as the “Host Name”, then the cert for Postfix is sent to the client. This causes issues because I do not have the CNAME in the SAN of the Postfix certificate. I doubt this is a bug because I have to think others have employed a similar configuration so I must be missing something here — any thoughts? Thanks in advance...

2 4

(re-) dsync: INBOX Can't be deleted
by PGNet Dev 24 Jul '20

24 Jul '20

with dovecot --version 2.3.10.1 (a3d0e1171) exec of doveadm -v -o mail_fsync=never backup -R -f -u testuser(a)example.com imapc: currently fails, here, with Error: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted checking lists, this has been seen before @ https://dovecot.org/pipermail/dovecot/2016-January/102988.html On 24 Jan 2016, at 18:47, Timo Sirainen <tss at iki.fi> wrote: > During Migration with dsync I get these Errors: > Error: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted > Is there a way to work around these Errors ? With "doveadm backup" you have gotten into such a state that the INBOX needs to be deleted and recreated to preserve it exactly as it's in source. But you're using Maildir format, which doesn't allow deleting INBOX. So possibilities: a) Don't use Maildir format b) Delete the entire Maildir manually with rm -rf and the next doveadm backup should work (if not then something strange is going on) per "b)", i explicitly 'rm' the Maildir rm -rf /data/vmail/example.com/testuser/Maildir tree /data/vmail/example.com/testuser/Maildir /data/vmail/example.com/testuser/Maildir [error opening dir] on re-exec, the backup still fails dsync(testuser(a)example.com): Info: imapc(mx.example.com:993): Connected to 10.1.0.20:993 (local 10.1.0.114:42926) dsync(testuser(a)example.com): Error: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted. where tree /data/vmail/example.com/testuser/Maildir /data/vmail/example.com/testuser/Maildir ├── cur ├── new ├── sieve │ └── tmp └── tmp and log detail, Debug: Loading modules from directory: /usr/lib64/dovecot Debug: Module loaded: /usr/lib64/dovecot/lib20_virtual_plugin.so Debug: Loading modules from directory: /usr/lib64/dovecot/doveadm doveadm(testuser(a)example.com)<>: Debug: auth-master: userdb lookup(testuser(a)example.com): Started userdb lookup doveadm(testuser(a)example.com)<>: Debug: auth-master: conn unix:/run/dovecot/auth-userdb: Connecting doveadm(testuser(a)example.com)<>: Debug: auth-master: conn unix:/run/dovecot/auth-userdb (pid=25419,uid=0): Client connected (fd=10) doveadm(testuser(a)example.com)<>: Debug: auth-master: userdb lookup(testuser(a)example.com): auth USER input: testuser(a)example.com uid=5000 gid=5000 home=/data/vmail/example.com/testuser/Maildir doveadm(testuser(a)example.com)<>: Debug: auth-master: userdb lookup(testuser(a)example.com): Finished userdb lookup (username=testuser(a)example.com uid=5000 gid=5000 home=/data/vmail/example.com/testuser/Maildir) doveadm(testuser(a)example.com): Debug: Effective uid=5000, gid=5000, home=/data/vmail/example.com/testuser/Maildir doveadm(testuser(a)example.com): Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/data/vmail/example.com/testuser/Maildir:CONTROL=/data/vma… doveadm(testuser(a)example.com): Debug: fs: root=/data/vmail/example.com/testuser/Maildir, index=/var/vmail-index/example.com/testuser, indexpvt=, control=/data/vmail/example.com/testuser/_control, inbox=/data/vmail/example.com/testuser/Maildir, alt= doveadm(testuser(a)example.com): Debug: Namespace shared: type=shared, prefix=shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:/data/vmail/example.com/testuser/Maildir:INDEXPVT=/var/vma… doveadm(testuser(a)example.com): Debug: shared: root=/run/dovecot/, index=, indexpvt=, control=, inbox=, alt= doveadm(testuser(a)example.com): Debug: Namespace virtual: type=private, prefix=virtual/, sep=/, inbox=no, hidden=no, list=yes, subscriptions=yes location=virtual:/data/vmail/virtual:INDEX=MEMORY doveadm(testuser(a)example.com): Debug: fs: root=/data/vmail/virtual, index=, indexpvt=, control=, inbox=, alt= doveadm(testuser(a)example.com): Debug: brain M: Namespace has location maildir:/data/vmail/example.com/testuser/Maildir:CONTROL=/data/vmail/exampl… doveadm(testuser(a)example.com): Debug: Namespace : Using permissions from /data/vmail/example.com/testuser/Maildir: mode=0700 gid=default dsync(testuser(a)example.com): Debug: Effective uid=5000, gid=5000, home=/data/vmail/example.com/testuser/Maildir dsync(testuser(a)example.com): Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=imapc: dsync(testuser(a)example.com): Debug: imapc(mx.example.com:993): Created new connection dsync(testuser(a)example.com): Debug: imapc(mx.example.com:993): Looking up IP address (reconnect_ok=true, last_connect=1595599741) dsync(testuser(a)example.com): Debug: imapc(mx.example.com:993): Connecting to 10.1.0.20:993 dsync(testuser(a)example.com): Info: imapc(mx.example.com:993): Connected to 10.1.0.20:993 (local 10.1.0.114:42924) dsync(testuser(a)example.com): Debug: imapc(mx.example.com:993): Starting SSL handshake dsync(testuser(a)example.com): Debug: imapc(mx.example.com:993): SSL handshake successful dsync(testuser(a)example.com): Debug: imapc(mx.example.com:993): Server capabilities: IMAP4rev1 AUTH=PLAIN ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE ESEARCH ESORT I18NLEVEL=1 ID IDLE LIST-EXTENDED LIST-STATUS LITERAL+ LOGIN-REFERRALS MULTIAPPEND NAMESPACE QRESYNC QUOTA RIGHTS=ektx SASL-IR SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN XLIST dsync(testuser(a)example.com): Debug: imapc(mx.example.com:993): Authenticating as testuser(a)example.com dsync(testuser(a)example.com): Debug: imapc(mx.example.com:993): Server capabilities: IMAP4rev1 ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE ESEARCH ESORT I18NLEVEL=1 ID IDLE LIST-EXTENDED LIST-STATUS LITERAL+ LOGIN-REFERRALS MULTIAPPEND NAMESPACE QRESYNC QUOTA RIGHTS=ektx SASL-IR SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN XLIST dsync(testuser(a)example.com): Debug: imapc(mx.example.com:993): Authenticated successfully dsync(testuser(a)example.com): Debug: imapc: root=, index=, indexpvt=, control=, inbox=, alt= dsync(testuser(a)example.com): Debug: Namespace shared: type=shared, prefix=shared/%u/, sep=/, inbox=no, hidden=no, list=children, subscriptions=yes location=maildir:/data/vmail/example.com/testuser/Maildir:INDEXPVT=/var/vma… dsync(testuser(a)example.com): Debug: shared: root=/run/dovecot/, index=, indexpvt=, control=, inbox=, alt= dsync(testuser(a)example.com): Debug: Namespace virtual: type=private, prefix=virtual/, sep=/, inbox=no, hidden=no, list=yes, subscriptions=yes location=virtual:/data/vmail/virtual:INDEX=MEMORY dsync(testuser(a)example.com): Debug: fs: root=/data/vmail/virtual, index=, indexpvt=, control=, inbox=, alt= dsync(testuser(a)example.com): Debug: brain S: Namespace has location imapc: dsync(testuser(a)example.com): Debug: brain M: Local mailbox tree: Sent guid=00000000000000000000000000000000 uid_validity=0 uid_next=0 subs=yes last_change=0 last_subs=1595535189 dsync(testuser(a)example.com): Debug: brain S: Local mailbox tree: Trash guid=7f5af7ba291b2df1a11d573bdb55d7e9 uid_validity=1 uid_next=89207 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Local mailbox tree: Drafts guid=00000000000000000000000000000000 uid_validity=0 uid_next=0 subs=yes last_change=0 last_subs=1595535189 dsync(testuser(a)example.com): Debug: brain S: Local mailbox tree: Templates guid=d9f092123a43acb205a6869342cf9dd6 uid_validity=126054 uid_next=22295 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Local mailbox tree: Trash guid=00000000000000000000000000000000 uid_validity=0 uid_next=0 subs=yes last_change=0 last_subs=1595534293 dsync(testuser(a)example.com): Debug: brain S: Local mailbox tree: Sent guid=bfb2e03fdce327671e82bf173b1ccb8b uid_validity=1 uid_next=89068 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Local mailbox tree: INBOX guid=6f51443ad5eb195f9f4400005439fba4 uid_validity=1595534294 uid_next=1 subs=no last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Local mailbox tree: Junk guid=6e51443ad5eb195f9f4400005439fba4 uid_validity=1595534293 uid_next=1 subs=yes last_change=0 last_subs=1595534293 dsync(testuser(a)example.com): Debug: brain S: Local mailbox tree: Junk guid=87680557f26fcb26843f739f7427e8c4 uid_validity=1 uid_next=88649 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain S: Local mailbox tree: INBOX guid=c92f64f79f0d1ed01e6d5b314f04886c uid_validity=1 uid_next=89209 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Remote mailbox tree: Trash guid=7f5af7ba291b2df1a11d573bdb55d7e9 uid_validity=1 uid_next=89207 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Remote mailbox tree: Templates guid=d9f092123a43acb205a6869342cf9dd6 uid_validity=126054 uid_next=22295 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Remote mailbox tree: Sent guid=bfb2e03fdce327671e82bf173b1ccb8b uid_validity=1 uid_next=89068 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Remote mailbox tree: Junk guid=87680557f26fcb26843f739f7427e8c4 uid_validity=1 uid_next=88649 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Remote mailbox tree: INBOX guid=c92f64f79f0d1ed01e6d5b314f04886c uid_validity=1 uid_next=89209 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain S: Local mailbox tree: Drafts guid=e0187b65e763143666d22094cedfe6a4 uid_validity=1 uid_next=88914 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Remote mailbox tree: Drafts guid=e0187b65e763143666d22094cedfe6a4 uid_validity=1 uid_next=88914 subs=yes last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain M: Mailbox Drafts: local=00000000000000000000000000000000/0/2, remote=e0187b65e763143666d22094cedfe6a4/0/1: mailbox not selectable yet dsync(testuser(a)example.com): Debug: brain M: Mailbox INBOX: local=6f51443ad5eb195f9f4400005439fba4/0/1, remote=c92f64f79f0d1ed01e6d5b314f04886c/0/1: GUIDs conflict - will be merged later dsync(testuser(a)example.com): Debug: brain M: Mailbox Junk: local=6e51443ad5eb195f9f4400005439fba4/0/1, remote=87680557f26fcb26843f739f7427e8c4/0/1: GUIDs conflict - will be merged later dsync(testuser(a)example.com): Debug: brain M: Mailbox Sent: local=00000000000000000000000000000000/0/0, remote=bfb2e03fdce327671e82bf173b1ccb8b/0/1: mailbox not selectable yet dsync(testuser(a)example.com): Debug: brain M: Mailbox Templates: local=00000000000000000000000000000000/0/0, remote=d9f092123a43acb205a6869342cf9dd6/0/1: mailbox not selectable yet dsync(testuser(a)example.com): Debug: brain M: Mailbox Trash: local=00000000000000000000000000000000/0/0, remote=7f5af7ba291b2df1a11d573bdb55d7e9/0/1: mailbox not selectable yet dsync(testuser(a)example.com): Debug: brain M: Deleting mailbox 'INBOX' (GUID 6f51443ad5eb195f9f4400005439fba4): UIDVALIDITY changed (1 -> 1595534294) dsync(testuser(a)example.com): Debug: brain M: Deleting mailbox 'Junk' (GUID 6e51443ad5eb195f9f4400005439fba4): UIDVALIDITY changed (1 -> 1595534293) dsync(testuser(a)example.com): Error: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted. dsync(testuser(a)example.com): Debug: brain S: Remote mailbox tree: Sent guid=00000000000000000000000000000000 uid_validity=0 uid_next=0 subs=yes last_change=0 last_subs=1595535189 dsync(testuser(a)example.com): Debug: brain S: Remote mailbox tree: Drafts guid=00000000000000000000000000000000 uid_validity=0 uid_next=0 subs=yes last_change=0 last_subs=1595535189 dsync(testuser(a)example.com): Debug: brain S: Remote mailbox tree: Trash guid=00000000000000000000000000000000 uid_validity=0 uid_next=0 subs=yes last_change=0 last_subs=1595534293 dsync(testuser(a)example.com): Debug: brain S: Remote mailbox tree: INBOX guid=6f51443ad5eb195f9f4400005439fba4 uid_validity=1595534294 uid_next=1 subs=no last_change=0 last_subs=0 dsync(testuser(a)example.com): Debug: brain S: Remote mailbox tree: Junk guid=6e51443ad5eb195f9f4400005439fba4 uid_validity=1595534293 uid_next=1 subs=yes last_change=0 last_subs=1595534293 dsync(testuser(a)example.com): Debug: imapc(mx.example.com:993): Disconnected dsync(testuser(a)example.com): Debug: auth-master: conn unix:/run/dovecot/auth-userdb (pid=25419,uid=0): Disconnected: Connection closed (fd=10) given the error again on "next doveadm backup", it indeed appears "something strange is going on" ... hints/suggestions as to what?

1 1

Mailbox sharing, user to user in same domain, OK! User to user sharing in separate domains, problem. ( ... and more oh boy!)
by Andreas T (DC) 22 Jul '20

22 Jul '20

Dovecot -n and version present at the bottom of the email for legibility. System is a Debian 10 + Virtualmin hosting setup for my domains ------------------------------------------------------------------- Hello everyone, my first post. Sorry for the long and confusing post, I'm pretty new to dovecot other than basic functionality. I recently in the last week went through the documentation for both shared (user to user) and public mailboxes and got them both working. Took me a bit but eventually I figured it out, but I am still encountering some stubborn scenarios. I am having some issues with 2 types of sharing. ( I believe problem A + B are related as the error is similarly permission based error) For inconsistencies in the user account names, user(a)domain.com vs user-domain.com please see issue C, which my workaround is functional. A.) Sharing user to user between in the same domain works fine. Sharing user to user in different domains gives me some permission errors. Permissions have been granted (to (using Linux ACL for more fine grained permissions) as far as I can tell. Trying to share the info "INBOX" (fullshare, same issue for single boxes as well) from the info(a)primarydomain.com to user(a)externaldomain.com from info(a)primarydomain.com Mailder cat dovecot-acl user=user-externaldomain.com akxeilprwts getfacl dovecot-acl # file: dovecot-acl # owner: info(a)primarydomain.com # group: primarydomain.com user::rw- user:user@externaldomain.com:rwx #effective:rw- user:info@primarydomain.com:rwx #effective:rw- group::--- mask::rw- other::--- doveadm acl debug -u user-externaldomain.com "@/info@primarydomain.com/INBOX" doveadm(user-externaldomain.com): Error: stat(/home/primarydomain.com/homes/info/Maildir/tmp) failed: Permission denied (euid=1121(user(a)externaldomain.com) egid=1091(holanow.com) missing +x perm: /home/primarydomain.com, we're not in group 1092(primarydomain.com), dir owned by 1126:1092 mode=0750) doveadm(user-externaldomain.com): Error: Can't open mailbox @/info@primarydomain.com/INBOX: stat(/home/primarydomain.com/homes/info/Maildir/tmp) failed: Permission denied (euid=1121(user(a)externaldomain.com) egid=1091(holanow.com) missing +x perm: /home/primarydomain.com, we're not in group 1092(primarydomain.com), dir owned by 1126:1092 mode=0750) getfacl /home/primarydomain.com/homes/info/Maildir/tmp # file: home/primarydomain.com/homes/info/Maildir/tmp # owner: info(a)primarydomain.com # group: primarydomain.com user::rwx user:user@externaldomain.com:rwx user:info@primarydomain.com:rwx group::--- mask::rwx other::--- default:user::rwx default:user:user@externaldomain.com:rwx default:user:info@primarydomain.com:rwx default:group::--- default:mask::rwx default:other::--- getfacl /home/primarydomain.com/homes/info/Maildir # file: home/primarydomain.com/homes/info/Maildir/ # owner: info(a)primarydomain.com # group: primarydomain.com user::rwx user:user@externaldomain.com:rwx user:info@primarydomain.com:rwx group::--- mask::rwx other::--- default:user::rwx default:user:user@externaldomain.com:rwx default:user:info@primarydomain.com:rwx default:group::--- default:mask::rwx default:other::--- B.) Public mailbox, mailboxes that are physically present on the public mail dir, work fine. Public boxes which are symlinks to mailboxes to other users, with correct permission and ACL, always give me permission errors and do not show up publicly. These type of mailboxes do show up if the person already has user to user share setup with those boxes, which due to problem A, means only within the same domain. Similar errors as to the A scenario, even if giving complete rwx access to all (user/group/other) I still get permission denied issues. It just feel like dovecot isn't even trying to access the files C. Tiny "other" problem I have worked around already. dovecot-acl when using users via their user(a)domain.com account doesn't lookup the user correctly. I already have set, auth_username_translation = @- which works for when users login but it doesn't seem to work with dovecot-acl files. I have helper account pointers replacing the @ with - and then the ACL file works fine. Would prefer acl files contain, user=user1(a)primarydomain.com akxeilprwts user=user2(a)primarydomain.com akxeilprwts But this works and is not a show stopper. user=user1-primarydomain.com akxeilprwts user=user2-primarydomain.com akxeilprwts -------------------------------------------- dovecot --version 2.3.4.1 (f79e8e7e4) # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 5.4.44-2-pve x86_64 Debian 10.4 # Hostname: vps1.abclution.com doveconf: Warning: please set ssl_dh=</etc/dovecot/dh.pem doveconf: Warning: You can generate it with: dd if=/var/lib/dovecot/ssl-parameters.dat bs=1 skip=88 | openssl dhparam -inform der > /etc/dovecot/dh.pem auth_mechanisms = plain login auth_username_translation = @- mail_debug = yes mail_location = maildir:~/Maildir mail_plugins = acl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / } namespace public_ns1 { location = maildir:/home/.Public_Mailboxes:INDEX=~/Maildir/public_ns1:INDEXPVT=~/Maildir/public_ns1 prefix = Public/ separator = / subscriptions = no type = public } namespace shared_ns1 { list = yes location = maildir:%%h/Maildir:INDEX=~/Maildir/shared_ns1/%%u:INDEXPVT=~/Maildir/shared_ns1/%%u prefix = @/%%u/ separator = / subscriptions = no type = shared } passdb { driver = pam } plugin { acl = vfile acl_anyone = allow acl_defaults_from_inbox = yes acl_shared_dict = file:%h/Maildir/shared-mailboxes } protocols = " imap pop3" service auth { unix_listener auth-userdb { mode = 0777 } } ssl_cert = </etc/dovecot/dovecot.cert.pem ssl_cipher_list = ECDHE-RSA-AES256-SHA384:AES256-SHA256:AES256-SHA256:RC4:HIGH:MEDIUM:+TLSv1:+TLSv1.1:+TLSv1.2:!MD5:!ADH:!aNULL:!eNULL:!NULL:!DH:!ADH:!EDH:!AESGCM ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { driver = passwd } protocol imap { mail_plugins = acl imap_acl }

1 1

IMAP ALERT on reason/nologin
by Pedro Ribeiro 22 Jul '20

22 Jul '20

Hello everyone, Some dovecot versions (years!) ago. I've made a rather complicated SQL query that verified some conditions during the SQL passdb checking and returned the usual parameters or "nologin" field signalling some account problem and a text on the "reason" field that were shown to the user telling him the reason of being rejected the login. Common "reasons" are blocked accounts, suspected brute-force to the user account, historic problems from his IP address, etc. In the current versions I've found that despite the attributes being set by the SQL query, dovecot no longer seems to signal that to the client application and it ends with some generic "wrong password" causing a lot of confusion and user complains. I can't find any reference to that (nologin/reason) logic in the current Dovecot documentation. Is this feature deprecated/removed? Were that logic changed and documented elsewhere? regards! stay safe! Note: running Dovecot 2.3.10.1 -- Best regards, =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Pedro Ribeiro Politécnico de Lisboa, Serviços da Presidência Departamento de Sistemas de Informação e Comunicações Phone: +351 210 464 700 (general) / VoIP: 80100 Helpdesk: helpdesk(a)net.ipl.pt / https://www.net.ipl.pt =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

1 0

ports with different crypto settings
by Leonardo Rodrigues 21 Jul '20

21 Jul '20

Hello Everyone, Is it possible, with latest dovecot, to have different crypto settings on different pop/imap ports? Basically i'm looking to have one port with TLSv1 enabled, which will be exposed to internal networks only, and other ports with TLSv1.2+ only, which will be exposed to the external networks. The internal one will likely be running on a different port and traffic will be redirected to it via iptables, so user doesn't need to care about it. Is that possible? I haven't found anything similar on the documentations, it seems to me that crypto settings are global ... -- Atenciosamente / Sincerily, Leonardo Rodrigues Solutti Tecnologia http://www.solutti.com.br Minha armadilha de SPAM, NÃO mandem email gertrudes(a)solutti.com.br My SPAMTRAP, do not email it

1 0

Sieve and OX push_notification_drive seem to not work together
by Ralf Becker 21 Jul '20

21 Jul '20

While it's documented that the OX push_notification_driver only supports MessageNew events, it does NOT generate any event if a Sieve script moves the message on arrival to an other folder, neither in INBOX were it original arrives by LMTP, nor in the folder Sieve moves the message. Is that a misconfiguration on my side, or a know / desired limitation or just a bug? I use LMTP to deliver mails from Postfix to Dovecot: protocol lmtp { mail_plugins = $mail_plugins notify push_notification } Does eg. the same need to be configured somehow for the Sieve plugin? Ralf -- Ralf Becker EGroupware GmbH [www.egroupware.org] Handelsregister HRB Kaiserslautern 3587 Geschäftsführer Birgit und Ralf Becker Leibnizstr. 17, 67663 Kaiserslautern, Germany Telefon +49 631 31657-0

2 2

Questions about Dovecot push notifications
by Ralf Becker 21 Jul '20

21 Jul '20

I read the docu available under: https://doc.dovecot.org/configuration_manual/push_notification/ I'm using Dovecot 2.2.36.4 with directors and a replicating pair of backends using a custom dict with proxy protocol for user- and passdb plus a userdb using sqlite for backup. I understand 2.2 only allows to notify about new arriving mails, not eg. flag-changes which would require 2.3 with LUA. I want to use the ox notification driver with a http url (https seems to be 2.3 only). I read to enable push notifications on a mailbox I need: a) IMAP metadata enabled incl. a backend/driver to store the metadata b) enable push for the individual mailbox using a doveadm command (maybe also via IMAP, which would be easier in my case) My questions are: 1. can I set some static metadata via userdb to enable push for all mailboxes? 2. if no, does setting the metadata on one replicating backend replicates it to the other one too? 3. what purpose does the user=<something@else> argument in the doveadm command to enable push server: doveadm mailbox metadata set -u user(a)example.com -s "" /private/vendor/vendor.dovecot/http-notify user=11@3 Does it replace "user(a)example.com" in the push payload with <something@else>? 4. can I set the required metadata via IMAP command preferable with a (already configured) master user? Thanks in advance :) Ralf -- Ralf Becker EGroupware GmbH [www.egroupware.org] Handelsregister HRB Kaiserslautern 3587 Geschäftsführer Birgit und Ralf Becker Leibnizstr. 17, 67663 Kaiserslautern, Germany Telefon +49 631 31657-0

1 1

History mails are stored in the tmp/ directory
by lty 21 Jul '20

21 Jul '20

We found that there are historically corrupted mails in the tmp/ directory, For example, Maildir/tmp/ or Maildir/.Drafts/tmp/ exists. We suspect that it may be caused by network transmission, or the user interrupted the network link. Can the dovecot team possibly fix this problem? dovecot --version 2.2.36

3 3

solr and dovecot-2.2.36.4
by Maciej Milaszewski 21 Jul '20

21 Jul '20

Hi Today i try run solr-8.6.0 + dovecot-2.2.36.4 and false I read https://doc.dovecot.org/configuration_manual/fts/solr/#fts-backend-solr Where I get schema.xml and solrconfig.xml for this version solr and dovecot ? I try schema.xml and solrconfig.xml from working solr-6.6.5 (dovecot) "dovecot: org.apache.solr.common.SolrException:org.apache.solr.common.SolrException: Error initializing QueryElevationComponent"

2 1

submission proxy -- where to config/present client cert?
by PGNet Dev 20 Jul '20

20 Jul '20

I've a dovecot instance setup with submission proxy, protocols = imap lmtp submission sieve hostname = internal.mx.example.com submission_relay_host = internal.mx.example.com submission_relay_port = 465 submission_relay_trusted = yes submission_relay_ssl = smtps submission_relay_ssl_verify = yes service submission-login { inet_listener submission { address = 10.2.2.10, 127.0.0.1 port = 50465 ssl = yes } } protocol submission { ssl_cert = < /sec/vmail/mx.example.com.server.EC.crt.pem ssl_key = < /sec/vmail/mx.example.com.server.EC.key.pem ssl_verify_client_cert = no } It submits to a postfix instance, atm on the same host, [internal.mx.example.com]:465 inet n - n - - smtpd -o smtpd_tls_req_ccert=no with that setup, all works as expected. If I turn ON required client cert verification @ postfix, - -o smtpd_tls_req_ccert=no + -o smtpd_tls_req_ccert=yes with that add'l req't, postfix log reports "no client certificate presented" Jul 18 14:52:38 mx postfix/submit-from-dovecot/smtpd[37133]: connect from internal.mx.example.com[10.2.2.10] Jul 18 14:52:39 mx postfix/submit-from-dovecot/smtpd[37133]: Anonymous TLS connection established from internal.mx.example.com[10.2.2.10]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384 Jul 18 14:52:39 mx postfix/submit-from-dovecot/smtpd[37133]: NOQUEUE: abort: TLS from internal.mx.example.com[10.2.2.10]: No client certificate presented Jul 18 14:53:09 mx postfix/submit-from-dovecot/smtpd[37133]: disconnect from internal.mx.example.com[10.2.2.10] commands=0/0 Clearly, I'm missing config. What in my dovecot submission config^^ do I need to change/add to get it to 'present' a client cert to the postfix relay for client cert verification?

2 2

Set mail to only display mail within 30 or 60 days
by lty 20 Jul '20

20 Jul '20

Set mail to only display mail within 30 or 60 days, Here are two examples. 1. normal E.g: A654 FETCH 2:4 (FLAGS BODY[HEADER.FIELDS (DATE FROM)]) * 2 FETCH (FLAGS (\Seen) BODY[HEADER.FIELDS (DATE FROM)] {73} Date: Tue, 07 May 2020 12:26:55 +0800 From: <test(a)www.chengmail.ml> ) * 3 FETCH (FLAGS (\Seen) BODY[HEADER.FIELDS (DATE FROM)] {62} Date: Tue, 07 May 2020 12:35:34 +0800 From: lty(a)cndns.com ) * 4 FETCH (FLAGS (\Seen) BODY[HEADER.FIELDS (DATE FROM)] {62} Date: Tue, 07 Jul 2020 17:41:53 +0800 From: lty(a)cndns.com ) A654 OK Fetch completed (0.002 + 0.000 + 0.001 secs). 2. Set to display mail within 30 days E.g: A654 FETCH 2:4 (FLAGS BODY[HEADER.FIELDS (DATE FROM)]) * 4 FETCH (FLAGS (\Seen) BODY[HEADER.FIELDS (DATE FROM)] {62} Date: Tue, 07 Jul 2020 17:41:53 +0800 From: lty(a)cndns.com ) A654 OK Fetch completed (0.002 + 0.000 + 0.001 secs). Is there any way to display the result of case 2? I found lua. https://doc.dovecot.org/admin_manual/lua/#mail-lua But I don't know how to edit the lua script, Are there more examples? I also watched the help, but it doesn't help much. https://doc.dovecot.org/configuration_manual/authentication/lua_based_authe… https://doc.dovecot.org/configuration_manual/push_notification/#lua-push-no… Can Lua fulfill my needs?

1 0

I need some help with my Dovecot and Postfix configs - I'm unable to log in on my mail server
by Nils 20 Jul '20

20 Jul '20

Hello, currently I'm working on my first mailserver but I can't log in to the account I made. For now my client (Mozlla Thunderbird) detects the server config (STARTTLS, Port, ...) but it is "Unable to log in at server. Probbly wrong configuration, username or passsword". I know that I added username and password correctly so there must something else be wrong. I run Debian 10 x64 on a fresh installation. Installed are: postfix, postfix-pcre, dovecot-core, dovecot-imapd and dovecot-pop3d. Dovecot is version 2.3.4.1, Postfix is 3.4.10. Here are my configurations: Postfix main.cf: https://pastebin.com/S17jWDQd Postfix master.cf: https://pastebin.com/W0nynZG6 dovecot.conf: https://pastebin.com/tMD90Znn This is what my server logs (mail.info, mail.warn) tell me: root@bgrsld-mail0:~# tail /var/log/mail.info Jul 17 18:22:08 bgrsld-mail0 postfix/submission/smtpd[8472]: improper command pipelining after EHLO from unknown[192.168.2.110]: QUIT\r\n Jul 17 18:22:08 bgrsld-mail0 postfix/submission/smtpd[8465]: disconnect from unknown[192.168.2.110] ehlo=1 quit=1 commands=2 Jul 17 18:22:08 bgrsld-mail0 postfix/submission/smtpd[8472]: disconnect from unknown[192.168.2.110] ehlo=1 quit=1 commands=2 Jul 17 18:24:59 bgrsld-mail0 postfix/submission/smtpd[8485]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled Jul 17 18:24:59 bgrsld-mail0 postfix/submission/smtpd[8485]: connect from unknown[192.168.2.110] Jul 17 18:24:59 bgrsld-mail0 postfix/submission/smtpd[8485]: improper command pipelining after EHLO from unknown[192.168.2.110]: QUIT\r\n Jul 17 18:24:59 bgrsld-mail0 postfix/submission/smtpd[8485]: disconnect from unknown[192.168.2.110] ehlo=1 quit=1 commands=2 Jul 17 18:28:19 bgrsld-mail0 postfix/anvil[8473]: statistics: max connection rate 2/60s for (submission:192.168.2.110) at Jul 17 18:22:08 Jul 17 18:28:19 bgrsld-mail0 postfix/anvil[8473]: statistics: max connection count 2 for (submission:192.168.2.110) at Jul 17 18:22:08 Jul 17 18:28:19 bgrsld-mail0 postfix/anvil[8473]: statistics: max cache size 1 at Jul 17 18:22:08 root@bgrsld-mail0:~# tail /var/log/mail.warn Jul 17 18:21:50 bgrsld-mail0 postfix/postfix-script[8290]: warning: symlink leaves directory: /etc/postfix/./makedefs.out Jul 17 18:22:08 bgrsld-mail0 postfix/submission/smtpd[8465]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled Jul 17 18:22:08 bgrsld-mail0 postfix/submission/smtpd[8472]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled Jul 17 18:24:59 bgrsld-mail0 postfix/submission/smtpd[8485]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled (I removed any information from older issues that are already solved, thats why mail.warn misses a few lines and there is no mail.err, mail.err hadn't any newer messages) Here is my only line from dovecot's userpass file (/maildata/userpass): nils@intern.xxx.xxx:{CRYPT}$2y$05$kkxElxFGsLSyTJwbEaPZzO/QA33vGY3oGyHcgEZa9rpklgBTKQw9O My postfix vhosts file (/maildir/vhosts) intern.xxx.xxx My postfix vmaps file (/maildir/vmaps) nils(a)intern.xxx.xxx intern.xxx.xxx/nils/ I've also created the hased database with 'postmap /maildata/vmaps' This is the script I've used to create my user database: https://pastebin.com/9uViNqjB I haven't worked with postfiy or dovecot yet so there are many things I don't know. Because of this a lot of my configurations is copied from an iRedMail installation. I know that taking these configs may cause some problems but I don't know where to change them or what else is wrong or missing. Thank you for any help!

6 11

Sieve and handling multiple addresses
by ＠lbutlr 19 Jul '20

19 Jul '20

I an trying to write a sieve action that will take mail that is addressed to a user only it is filed in a mailbox (e.g. "Direct") if it is to the email AND to any other email address, then file it in a mailbox named, e.g. "Cc". And if the mail is not addressed to the user at all, sieve does nothing with it. Message 1: to foo(a)example.com => Direct Message 2: to/cc foo(a)example.com & to/cc to anyone(a)anydomain.tlf => CC Optional: If it contains a specific header like "X-bypass: secret string" => no action Message 3: NOT to/cc foo(a)example.com => no action I've gotten exactly nowhere so far Something like if :allof (header :contains ["to"] ["foo#example.com"], header :contains ["cc"] ["foo#example.com"]) Takes care of the first part of the message 1 and 2 criteria. But then what? -- Was it everything you wanted to find? and did you miss me while you were looking for yourself out there?

5 8

problem with client using TLS
by ratatouille 18 Jul '20

18 Jul '20

Hello! On my testserver running CentOS8 I have installed dovecot v2.3.8. I can connect to the server using claws-mail on my PC but can't using K9-mail on android device. Jul 18 12:24:57 imap-login: Debug: SSL: where=0x10, ret=1: before SSL initialization Jul 18 12:24:57 imap-login: Debug: SSL: where=0x2001, ret=1: before SSL initialization Jul 18 12:24:57 imap-login: Debug: SSL: where=0x2002, ret=-1: before SSL initialization Jul 18 12:24:57 imap-login: Debug: SSL: where=0x2002, ret=-1: before SSL initialization Jul 18 12:24:57 imap-login: Debug: SSL: where=0x2001, ret=1: before SSL initialization Jul 18 12:24:57 imap-login: Debug: SSL alert: where=0x4008, ret=582: fatal protocol version Jul 18 12:24:57 imap-login: Debug: SSL: where=0x2002, ret=-1: error Jul 18 12:24:57 imap-login: Debug: SSL error: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol Jul 18 12:24:57 imap-login: Info: Disconnected (no auth attempts in 0 secs): user=<>, rip=87.182.44.142, lip=185.84.81.115, TLS handshaking: SSL_accept() failed: error:14209102:SSL routines:tls_early_post_process_client_hello:unsupported protocol, session=<uppwr7SqrrpXtiyO> Jul 18 12:24:57 imap-login: Debug: SSL error: SSL_accept() syscall failed: Invalid argument Tried different settings without luck. grep -v '^#' 10-ssl.conf ssl = yes ssl_cert = </etc/letsencrypt/live/smtp.dualbit.de/fullchain.pem ssl_key = </etc/letsencrypt/live/smtp.dualbit.de/privkey.pem ssl_dh = </etc/dovecot/dh.pem ssl_min_protocol = TLSv1.2 ssl_cipher_list = PROFILE=SYSTEM ssl_prefer_server_ciphers = yes Can somebody help solving this? Kind regards Andreas

3 8

Non-standard socket locations w/ Dovecot + AWS Linux
by Antonio Leding 18 Jul '20

18 Jul '20

# === The post relates to Dovecot v2.2 running on AWS Linux v1 === # Hello all… The Dovecot sockets on this server are installed in two different locations one of which is different from what I have on my other Dovecot installations which run on Centos-7. Here are the sockets paths: — all sockets EXCEPT "auth-master” —> "/usr/local/var/run/dovecot” <<<<< this appears to be the default for this server — "auth-master” —> "/var/run/dovecot” <<<<< without this statement, Dovecot authentication always failed. The config stanza for this is shown below: service auth { unix_listener auth-userdb { path = /var/run/dovecot/auth-master mode = 0600 user = vmail } } ============ The above has been working great for several years but the time eventually came where I needed to upgrade. This of course meant I had to move lots of maildata between the servers. Unfortunately, the “auth-userdb" config mentioned above prevented “dsync" from working properly. This is the error I received when trying “dsync”: Error: userdb lookup: connect(/usr/local/var/run/dovecot/auth-userdb) failed: No such file or directory This error led me to the eventual fix which was adding the following to the “dovecot.conf” file: auth_socket_path = /var/run/dovecot/auth-master ============ So, to my questions: (1) Why would the socket path on this AWS installation be different from what I see on my Centos-based Dovecot servers and also what I’ve read in several Dovecot mailer discussions? (2) Can the default socket path be set at compile time? If so, then I'm thinking maybe the AWS folks — for whatever reason — decided to install all sockets (except ”auth-master”) in the “/usr/local/var/run/dovecot” directory. Are there any benefits or reason to do this? (3) Is there any requirement that the “auth-master” socket be located in the “/var/run/dovecot” directory? Also, there is nothing else in that directory — just the “auth-master” socket file — that’s it. (4) Why is “dsync" looking for "auth-userdb" in the “/usr/local/var/run/dovecot” directory despite the “auth" stanza stating it is located elsewhere in "/var/run/dovecot”? (5) And last, why do I need to add the “auth_socket_path” statement to get “dsync” working even though the socket path is stated in the “auth" stanza? Thanks in advance for your time on this. I know this is mostly to help educate me on what is going on so I really appreciate your feedback…

1 0

Namespace issues & duplicate maiboxes
by Antonio Leding 18 Jul '20

18 Jul '20

Hello, I am seeing duplicate mailboxes when I perform the “doveadm mailbox list” command…the output is as follows: ================= INBOX INBOX.Drafts INBOX.Trash INBOX.Sent INBOX.INBOX INBOX.INBOX.Sent Messages INBOX.INBOX.Drafts INBOX.INBOX.Trash INBOX.INBOX.Deleted Messages ================= Here is namespace config that seems to have caused the above duplicates. Please help me understand what I’m doing wrong here…and also, not sure if this is relevant but the client is Apple Mail… ================= namespace inbox { type = private separator = . inbox = yes prefix = INBOX. mailbox Trash { auto = subscribe special_use = \Trash } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } }

2 2

Stuck here - help please
by Kishore Potnuru 18 Jul '20

18 Jul '20

Hi All, I have 2 test servers with the below configuration. ========================== Linux OS - Red Hat Enterprise Linux Server release 7.7 (Maipo) Dovecot version - 2.2.36 (1f10bfa63) Postfix version - 2.10.1 ========================== Trying to create High Availability. I have added both of the above servers behind a F5 load balancer. I have got a Load Balancer FQDN "intl-dev-imaptest.testorg.com". I have enabled/opened the ports (25/110/143/993/995) on the above " intl-dev-imaptest.testorg.com". When I send 10 emails to "intl-dev-imaptest.testorg.com", then those 10 emails are getting distributed between the above 2 backend servers (5 emails to each server). I see those 5 emails each in both the servers. >From Outlook I have configured the email address using "POP and IMAP", when I gave the IMAP server as "intl-dev-imaptest.testorg.com" ,then it shows only 5 emails from server1 in outlook and after a few seconds/minutes, automatically it shows/refreshes the other 5 emails from server2. But I am not seeing all the 10 emails at the same time. why? So I tried the sync command. When I execute sync command like below from server1, it reflects the same emails in other server2 also. Then I see the same number of emails in both the servers. Is it not possible to access the both servers emails at one time with the "sync" command? Do we need to run this on all the email boxes on both servers? don't we miss/lose any emails during this sync process multiple times? "doveadm sync -f -u kishore(a)test.testorg.com remote:vmail@bal3200dev002.testorg.com" Is "replication" and "sync" are same? Why are we not able to see all the emails at one time without the "sync" command? What is the best and easiest way to create High Availability with just 2 servers, like emails should travel to both servers equally and if one server goes down also, another server should take care of the emails/functionality. This is my requirement. My current real time environment: I have around 10 email domains and each domain is having 10 imap emails. In total around 100 email boxes/addresses. We receive around 50K emails in a day to those email addresses. We are using the "Maildir" format in our environment. Want to move to the High Availability option with 2 servers. Please help me to fix the issue. Thanks & Regards, Kishore Potnuru

3 6

Outlook vs Thunderbird
by The Doctor 16 Jul '20

16 Jul '20

Got a client that usually uses Outlook I think 2010. This person tends to move their e-mails to certain folers. On Thunderbird, the move shows. Not on Outlook. Any explanation? -- Member - Liberal International This is doctor@@nl2k.ab.ca Ici doctor@@nl2k.ab.ca Yahweh, Queen & country!Never Satan President Republic!Beware AntiChrist rising! https://www.empire.kred/ROOTNK?t=94a1f39b A full cup must be carried steadily. -English proverb

12 22

Variable expansion in passwords
by lukn 16 Jul '20

16 Jul '20

Hello list A user reports failure to log in after password change. The client side error message indicates a lost or dropped connection by the server. A peek into the server logs reveales this: dovecot: imap(user(a)example.com)<53267><el0HoZGqHIdb0K2G>: Error: Failed to expand plugin setting plain_pass = 'asdf%?asdf': Unknown variable '%?' This looks a lot like a %-variable in the user provided password is tried to be expanded... Is this a bug or did I misconfigure something? output of dovecot -n is attached. regards lukn

1 0

NFS vs Replication
by Andrea Gabellini 16 Jul '20

16 Jul '20

Hello list, I built an email system using a proxy / director pair (IMAP, POP3, LMTP) and a backend pair. To have an HA system, I would like to understand if it is better to use an NFS export or replication to save emails and index files NFS is provided by a NAS (in HA), while for replication I would use the local backend disks Which of the two systems is more reliable? Are there any drawbacks for one or the other? Thanks, Andrea -- __________________________ Buy a Pentium 586/200 so you can reboot faster. __________________________ TIM San Marino S.p.A. Andrea Gabellini Engineering R&D TIM San Marino S.p.A. - https://www.telecomitalia.sm Via Ventotto Luglio, 212 - Piano -2 47893 - Borgo Maggiore - Republic of San Marino Tel: (+378) 0549 886237 Fax: (+378) 0549 886188 -- Informativa Privacy Questa email ha per destinatari dei contatti presenti negli archivi di TIM San Marino S.p.A.. Tutte le informazioni vengono trattate e tutelate nel rispetto della normativa vigente sulla protezione dei dati personali (Reg. EU 2016/679). Per richiedere informazioni e/o variazioni e/o la cancellazione dei vostri dati presenti nei nostri archivi potete inviare una email a privacy(a)telecomitalia.sm. Avviso di Riservatezza Il contenuto di questa e-mail e degli eventuali allegati e' strettamente confidenziale e destinato alla/e persona/e a cui e' indirizzato. Se avete ricevuto per errore questa e-mail, vi preghiamo di segnalarcelo immediatamente e di cancellarla dal vostro computer. E' fatto divieto di copiare e divulgare il contenuto di questa e-mail. Ogni utilizzo abusivo delle informazioni qui contenute da parte di persone terze o comunque non indicate nella presente e-mail potra' essere perseguito ai sensi di legge.

5 8

Error in namespace config; how to move messages
by Antonio Leding 16 Jul '20

16 Jul '20

Hello, I inadvertently made an error re: the namespace prefix when setting up a few accounts and several messages have been saved in the Sent\Deleted folders under the incorrect namespace. Can I simply copy these messages to the relevant folder in the proper namespace? Or do I need to export\import these? Some other procedure? Thanks in advance for any feedback…

2 1

Massive alias / bulk delivery problem
by gnd 16 Jul '20

16 Jul '20

Hello list, we are experimenting with using Dovecot as part of a simplified mail stack with SQL for a internal messaging / notification system for our customers. Sometimes we need to send a message to thousands of customers at once and we do it by having aliases resolve to 10k and 20k+ mail accounts. When we send such a message the server load (obviously) is very high for a few minutes (in case of an alias containing 10k addresses its around 6-7 minutes for a 2 core machine with load around 20-30). Are there any optimizations or ways how to design the system around this problem ? Eg. is there a way how to deliver messages more slowly, and spread the load over longer time ? The stack is very simple with Postfix receiving the messages and Dovecot acting as a LMTP and IMAP server. Mailboxes are in the Maildir format on disk. Customers get the messages on login, a PHP script connects to the mail account associated with their ID via IMAP and sends unseen messages in the form of a JSON. Best regards, gnd/

5 6

doveadm quota question
by hfh＠cndns.com 15 Jul '20

15 Jul '20

I found that when the mailbox name contains special characters such as \x7f, when the doveadm quota recalc -u xxx command is executed, the messages under the mailbox name with special characters will not be counted. doveadm mailbox list -u xxx Actual mailbox name: doveadm quota recalc -u xxx, Mail under 'INBOX.Metaltex' will not be counted. hfh(a)cndns.com

1 0

dovecot 2.2.13
by Santhosh 14 Jul '20

14 Jul '20

all, below command not reporting the actual usage report on dovecot 2.2.13. please share your suggestion to how to fix this issue doveadm -f flow mailbox status -A -t 'messages vsize' '*' is just showing rkreddy messages=0 vsize=0 jcplho messages=0 vsize=0 planning messages=0 vsize=0 accounts messages=0 vsize=0 spam.notify messages=0 vsize=0 jsraju messages=0 vsize=0 amarnath messages=0 vsize=0 kamesh messages=0 vsize=0 moulivarma messages=0 vsize=0 test messages=0 vsize=0 electrical messages=0 vsize=0 subbarao messages=0 vsize=0 contracts messages=0 vsize=0 rrsrinivas messages=0 vsize=0 sralluri messages=0 vsize=0 jvgkraju messages=0 vsize=0 harikrishna messages=0 vsize=0 kvvnrao messages=0 vsize=0 chandrasekhar messages=0 vsize=0 admin messages=0 vsize=0 gsnraju messages=0 vsize=0 Thanks Kumar -- Sent from: http://dovecot.2317879.n4.nabble.com/

2 1

IMAP SEARCH over ALL mailboxes
by Filip Hanes 14 Jul '20

14 Jul '20

Hi, is it possible to SEARCH in dovecot IMAP over all messages in all mailboxes without selecting each mailbox?

2 2

Static users and doveadm
by Antonio Leding 14 Jul '20

14 Jul '20

Hello Dovecot users… I wanted to ask is using a static userdb will cause issues with some of the account and user related doveadm commands? If so, any suggestions on how to use doveadm in such a configuration? I have pasted both the cmd + error and userdb config below — Thanks in advance… sudo doveadm mailbox list -A Error: auth-master: userdb list: User listing returned failure doveadm: Error: Failed to iterate through some users userdb { args = uid=vmail gid=vmail home=/var/vmail allow_all_users=yes userdb_warning_disable=yes driver = static }

2 1

Apple Mail and subfolders
by Filip Hajný 14 Jul '20

14 Jul '20

Hi all, does anybody here use MacOS (Catalina) Mail, who can confirm that subfolders (i.e. folders inside folders) work for them? It seems that I cannot create/access Maildir subfolders at all. Subfolders created in Mail show up as '.folder\2esubfolder' on disk, suggesting that Apple Mail is URL-coding the dot separator before it passes it onto Dovecot. No such translation takes place when interpreting the IMAP tree though, resulting in subfolders rendered as plain entries with the dot separator preserved. Subfolders can be created from elsewhere (SoGO, Roundube, Thunderbird) just fine and work here just fine, suggesting that all is well in terms of Dovecot configuration. Subfolders created here though show up as a proper hierarchy in Apple Mail, but their contents is not displayed, so the user thinks the subfolder is empty. This definitely used to work fine in the past. Running 2.3.10.1 as part of the Mailcow suite. -F

5 7

Syncing emails from external server like Gmail
by Vitalii 14 Jul '20

14 Jul '20

Greeting I've managed to backup my emails from external email server via dsync and imapc: protocol like this: doveadm -Dv -o imapc_user='user(a)gmail.com' -o imapc_password="pass" -o imapc_host=imap.gmail.com backup -R -u duke(a)ejoom.com imapc: taken from https://wiki.dovecot.org/Migration/Dsync I wish to do regular syncing of 5min interval to substitute 'getmail' program. When I repeat the command It doesn't download all the attachments(!good) but It seems that at retrieve all the the GUIDs and UIDs(!bad) again that take quite long considering 30K emails. The question is how to speed it up and retrieve only new emails? Does anyone have a solution for regular synchronization? What is the best way? Logs look like this: https://gist.githubusercontent.com/vnagara/87e0da1b21b51f68fd74270b3ec653b3… It wrights that "Mailboxes are equal" but still verifies all the UIDs again. Thanks.

4 11

Fwd: Dsync mail migration from v2.2 --> v2.3
by Antonio Leding 14 Jul '20

14 Jul '20

Two items I forgot to mention in my initial post: (A) I am running the sync command on the new v2.3 server. (B) To get sync to work, I had to add the following to the old v2.2 server: auth_socket_path = /var/run/dovecot/auth-master I think this relates to what I said in my initial post about AWS linux installing all of the sockets into a non-standard location. I say this because when I was trying get this working but before I had added the above setting, I noticed the following message: Error: userdb lookup: connect(/usr/local/var/run/dovecot/auth-userdb) failed: No such file or directory This seemed to indicate that the old server was looking for the auth socket in the incorrect location. So, I decided to correct this with the setting I noted above. Please let me know if I had this correct or perhaps there is something else going on here… Thanks... > Begin forwarded message: > > From: Antonio Leding <tech(a)leding.net> > Subject: Dsync mail migration from v2.2 --> v2.3 > Date: July 13, 2020 at 8:45:18 PM PDT > To: dovecot(a)dovecot.org > > Hello all, > > I’ve been battling how to migrate my imap mail following a new server install that has Dovecot and Postfix upgrades. > > The research seems pretty clear that the preferred method is to use dsync to get the mail from Server-A to B. After several hours and several different combos, I think I might finally have this working. However, before committing to my procedure and running it against all mailboxes, I wanted to bounce this off of the community and get any feedback that might catch possible issues and\or offer some advice. > > Environment > > Old server: Dovecot 2.2.2 running on AWS linux 1 (I believe that is based on RHEL 4 or 5). > New server: Dovecot 2.3.10.1 running on CentOS 7.6. > All authentication is done by Dovecot against a mySQL (and Maria) database — nothing is in files. > All mail data and mailboxes are owned by a dedicated user “vmail” and I’m using a static userdb. > SSH is via public key file only — no PW based SSH is allowed. > SSH is on a non-standard port > > Operations > > I’ve decided to migrate one mailbox per command. I only have about 30 accounts on the server so this shoudn't be a huge deal. > Here is the command that I believe is good to go: > > sudo doveadm -Dv sync -u [ MBOX_TO_MIGRATE ] remote:vmail@[ SERVER ] > > The SERVER references a host stanza in root's SSH connection file: /root/.ssh/config > I need to use the config file because I (a) use a non-standard SSH port; (b) need to login as “vmail” ; (c) need to use the “vmail" identity file. > > Comments & notes > > The Dovecot 2.2 package for AWS Linux was apparently setup to install all of the sockets in /usr/local/var/run/dovecot. This must have caused authentication issues because to get it working properly, I then had to add "path = /var/run/dovecot/auth-master” statement to the “auth" stanza in dovecot.conf file. > Also, the fact that I do not use a “standard” SSH config was an issue early on but once I committed to allowing vmail to SSH into the old server, that part became moot. For security purposes, I will probably disable vmail SSH after the data is migrated. > > Questions > > First and foremost — any obvious issues here? > Next, any advice and\or lessons learned with this type of migration? > Finally, presuming this is the proper way to do this, will this migrate all mail content including Sent, Deleted, Drafts, etc.? > > > Thanks in advance for taking the time and providing any feedback — very much appreciated... > >

1 0

Dsync mail migration from v2.2 --> v2.3
by Antonio Leding 14 Jul '20

14 Jul '20

Hello all, I’ve been battling how to migrate my imap mail following a new server install that has Dovecot and Postfix upgrades. The research seems pretty clear that the preferred method is to use dsync to get the mail from Server-A to B. After several hours and several different combos, I think I might finally have this working. However, before committing to my procedure and running it against all mailboxes, I wanted to bounce this off of the community and get any feedback that might catch possible issues and\or offer some advice. Environment Old server: Dovecot 2.2.2 running on AWS linux 1 (I believe that is based on RHEL 4 or 5). New server: Dovecot 2.3.10.1 running on CentOS 7.6. All authentication is done by Dovecot against a mySQL (and Maria) database — nothing is in files. All mail data and mailboxes are owned by a dedicated user “vmail” and I’m using a static userdb. SSH is via public key file only — no PW based SSH is allowed. SSH is on a non-standard port Operations I’ve decided to migrate one mailbox per command. I only have about 30 accounts on the server so this shoudn't be a huge deal. Here is the command that I believe is good to go: sudo doveadm -Dv sync -u [ MBOX_TO_MIGRATE ] remote:vmail@[ SERVER ] The SERVER references a host stanza in root's SSH connection file: /root/.ssh/config I need to use the config file because I (a) use a non-standard SSH port; (b) need to login as “vmail” ; (c) need to use the “vmail" identity file. Comments & notes The Dovecot 2.2 package for AWS Linux was apparently setup to install all of the sockets in /usr/local/var/run/dovecot. This must have caused authentication issues because to get it working properly, I then had to add "path = /var/run/dovecot/auth-master” statement to the “auth" stanza in dovecot.conf file. Also, the fact that I do not use a “standard” SSH config was an issue early on but once I committed to allowing vmail to SSH into the old server, that part became moot. For security purposes, I will probably disable vmail SSH after the data is migrated. Questions First and foremost — any obvious issues here? Next, any advice and\or lessons learned with this type of migration? Finally, presuming this is the proper way to do this, will this migrate all mail content including Sent, Deleted, Drafts, etc.? Thanks in advance for taking the time and providing any feedback — very much appreciated...

1 0

Re: Dovecot permission denied errors on NFS after upgrade to 2.2.17
by Claudio Corvino 13 Jul '20

13 Jul '20

Hi Jochen, the ID has not changed, in addition the "permission denied" error is random, most of the time Dovecot works well. How can I check the mappings NFS uses? After the Debian upgrade I was using these NFS mount options: rw,user,rsize=8192,wsize=8192,timeo=30,intr Now trying to fix the problem I set "defaults" mount option, but nothing has changed. Thanks On 13/07/20 13:08, Jochen Bern wrote: > On 07/13/2020 12:57 PM, Claudio Corvino wrote: >> we just upgraded our mail server from Debian 8 to Debian 9, so our >> dovecot packages just got upgraded from version 2.2.13 to 2.2.17. > [...] >> Every directory and sub-dir under >> /mnt/mail-storage >> is assigned to vmail:vmail with >> drwx------ >> permission set. > Just a quick shot into the dark, you verified the ownerships on the NFS > *client*, not the NFS *server*, yes? Because NFS speaks UIDs and GIDs, > not their names, so if your Debian 9 installation assigned different IDs > to "vmail" ... > > (You might also want to check what mappings the NFS mount uses, > including possible *default* behaviour.) > > Good luck,

1 0

Dovecot permission denied errors on NFS after upgrade to 2.2.17
by Claudio Corvino 13 Jul '20

13 Jul '20

Hi everyone, we just upgraded our mail server from Debian 8 to Debian 9, so our dovecot packages just got upgraded from version 2.2.13 to 2.2.17. Now we have a lot of errors in our dovecot.log about permission denied (our Mailboxes are on NFS remote server since years without problems) like these: Jul 13 12:39:23 Error: imap(XXXXXXXXX): open(/mnt/mail-storage/XXXXXXXXX/Maildir/cur/1594378191.M653755P26498.ganimede,S=12716,W=12984:2,S) failed: Permission denied (euid=501(vmail) egid=501(vmail) missing +r perm: /mnt/mail-storage/XXXXXXXXX/Maildir/cur/1594378191.M653755P26498.ganimede,S=12716,W=12984:2,S stat(/mnt/mail-storage/XXXXXXXXX/Maildir/cur/1594378191.M653755P26498.ganimede,S=12716,W=12984:2,S) failed: Permission denied) For some user this is not a problem, for some other user this blocks their mail client (Thunderbird). We use vmail user for running Dovecot and I can't find a permission problem on the path indicated by the mail error, user vmail can read and write and uid and gid seems to be correct. Permissions on /mnt/mail-storage was drwx------ 94 vmail vmail 4096 ago 29 2019 mail-storage I just changed to drwxr-xr-x 94 root root 4096 ago 29 2019 mail-storage but nothing has changed. Every directory and sub-dir under /mnt/mail-storage is assigned to vmail:vmail with drwx------ permission set. If try to stat on /mnt/mail-storage/XXXXXXXXX/Maildir/cur/1594378191.M653755P26498.ganimede,S=12716,W=12984:2,S I get permission denied. We use LMTP and Postfix to deliver mail to mailbox. mail_debug=yes already enabled; mail_fsync is set to never (should I change to always?). Please could you give us help on the matter as I don't know where to look further. Thanks Claudio

1 0

Re: Please Help me
by Kishore Potnuru 13 Jul '20

13 Jul '20

Hi Vitalii, I am using "Maildir". Thanks Kishore Potnuru On Mon, Jul 13, 2020 at 10:32 AM Vitalii <vnagara(a)yandex.com> wrote: > On Sun, 12 Jul 2020 21:17:48 +0100 > Kishore Potnuru <kishore.reachme(a)gmail.com> wrote: > > > Hi All, > > > > I need to migrate the complete data & setup/environment from an old > > dovecot environment to a new dovecot environment. > > Hi Kishore, > I was wondering what mail format do you use Maildir/mdbox/sdbox? >

1 0

Please Help me
by Kishore Potnuru 13 Jul '20

13 Jul '20

Hi All, I need to migrate the complete data & setup/environment from an old dovecot environment to a new dovecot environment. Old environment details: ======================== Linux OS - Red Hat Enterprise Linux Server release 6.5 (Santiago) Dovecot version - 2.0.9 Postfix version - 2.6.6 New Environment details: ( 2 systems) ======================== Linux OS - Red Hat Enterprise Linux Server release 7.7 (Maipo) Dovecot version - 2.2.36 (1f10bfa63) Postfix version - 2.10.1 In the new environment, I have 2 servers. I have got 2 of the above servers with above configuration and need to create HA/Resilience. I know there is advanced versions in Redhat and Dovecot. As per my organisation's existing support/policy, that is what maximum supported RHEL and official version of dovecot as per RHEL 7.7. Now my questions are: 1. I will stop the dovecot/postfix services on the server in old environment. Is it possible to move/copy the complete configuration along with data (directories/sub-directories/users/groups/existing email in new or cur folders/complete email domains along with complete structure) to the other 2 servers in new env? Could you please suggest me the commands or steps follow that? 2. Now, With the above 2 servers, I would like to create the HA/Resilience. I know there is a Replication options which are there. Could you please provide me the steps/video, how it needs to be done? I have got the systems and I need to move/copy the environment to a new environment and create the HA/Resilience. I am not sure, how to proceed and what needs to be done clearly? I am stuck here. Please help me in this step by step procedure. Thanks, Kishore Potnuru

3 2

INBOX folders disappeared after upgrading
by Dave 12 Jul '20

12 Jul '20

Hi, tried to Google/etc to see what to tweak.. not finding anything helpful. So.. I've been running my private mail through a Linux server since approx year 2000. The OS has been various flavors of Fedora or CentOS, since for work, I have to spend all day supporting some sort of Red Hat flavor. So I run SquirrelMail on top of Dovecot and Postfix on CentOS 7, things have been great for like forever. I recently ran updates and all my INBOX folders disappeared. I have made no configuration changes in at least 5 years. I can't seem to resolve/figure out what's going on. I have backups to see everything before the update. I've noticed that my subscriptions file is missing all the folders, which are all in this file in the backups. If I repopulate this file with the names, the next time I access mail, they are all removed. Most of my mail is in folders, therefore I have access to almost none of it (can see new stuff coming in, but can't sort it anywhere). k, for the details.. I was running dovecot-2.2.10 (2.2.10-8.el7.x86_64) and was updated to dovecot-2.2.36 (2.2.36-3.el7_7.1.x86_64) with yum updates. # dovecot --version 2.2.36 (1f10bfa63) # dovecot -n # 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-1062.18.1.el7.x86_64 x86_64 CentOS Linux release 7.7.1908 (Core) # Hostname: vm1.tech...com auth_mechanisms = plain login login_greeting = IMAP ready. mail_location = maildir:~/Maildir mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } service auth { unix_listener /var/spool/postfix/private/auth { mode = 0600 user = postfix } } service imap-login { inet_listener imap { address = 127.0.0.1,68.139.25.150 } inet_listener imaps { address = 127.0.0.1,68.139.25.150 } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { address = 127.0.0.1,68.139.25.150 } } ssl = required ssl_cert = </etc/pki/tls/certs/mail.tech...com.crt ssl_cipher_list = ALL:!aNULL:!eNULL:!LOW:!EXP:!RC4 ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { driver = passwd } Regards, -Dave

2 4

2.3.10.1 on OpenBSD
by Rupert Gallagher 12 Jul '20

12 Jul '20

Apart from a few warnings (attached), and a bit of patience, the compiler terminates without error. On patience, OBSD has two processes who took almost half the CPU when compiling: reaper and zerothread. Will look into the warnings, and the testing errors (also attached). Let see how it works on this machine. OpenBSD 6.7 (GENERIC.MP) #2: Thu Jun 4 09:55:08 MDT 2020 real mem = 17125511168 (16332MB) avail mem = 16593879040 (15825MB) bios0: Supermicro A2SDi-4C-HLN4F OpenBSD clang version 8.0.1 (tags/RELEASE_801/final) (based on LLVM 8.0.1) Target: amd64-unknown-openbsd6.7 Thread model: posix

3 6

Per-user sieve_before settings?
by Gionatan Danti 11 Jul '20

11 Jul '20

Hi all, I wonder if using a per-user sieve_before setting (ie: a relative path to user home, as ~/filter.sieve) is expected to work corretly. Full disclaimer: I am migrating an old CentOS 6.10 box with dovecot 2.0.9 and an old pigenhole version. I now want to redirect emails from old account to new account (I have a csv with old->new address pairs). My first approach using a single, big filter file somewhat works, but it is not optimal. I am currently setting sieve_before = /var/vmail/autoreply.sieve, and it that file I have something as: ... if header :contains "to" "aaa(a)olddomain.com" { redirect "aaa(a)newdomain.com"; stop; } if header :contains "to" "bbb(a)olddomain.com" { redirect "bbb(a)newdomain.com"; stop; } ... Problem is that whan an email has multiple to or cc, the filter is evaluated multiple times (one per recipient) and I end with multiple email copies on the same destination address. For example, sending and email to aaa(a)olddomain.com, cc bbb(a)olddomain.com is evaluated *two* times: when delivering the email to aaa(a)olddomain.com, with a corresponding redirect to aaa(a)newdomain.com, and when delivering the email to bbb(a)olddomain.com, with *another* redirect to aaa(a)newdomain.com (ending with two email copies). Using a per-user filter file solves the problem, as the filter is evaluated in the context of the right user only (ie: an email sent to aaa(a)olddomain.com, cc bbb(a)olddomain.com is evaluated only in aaa(a)olddomain.com context, with a corresponding single email on aaa(a)newdomain.com) However, I would avoid manipulating the already present per-user file (roundcube.sieve), as I need to add my custom rules on top of that file. Moreover, users would be able to disable the redirect filter. Using a per-user before_sieve filter file seems the right solution, *if* it works using multiple files rather than a single global one. If not, do you have any other suggestion/approach to share? Thanks. -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it [1] email: g.danti(a)assyoma.it - info(a)assyoma.it GPG public key ID: FF5F32A8

1 1

antispam
by Matthew Broadhead 10 Jul '20

10 Jul '20

in dovecot/conf.d/90-plugin.conf i have plugin { # man antispam #setting_name = value antispam_debug_target = syslog antispam_verbose_debug = 1 antispam_backend = pipe antispam_signature = X-DSPAM-Signature # action to take on mails without signature # (used with any backend requiring a signature) # (we recommend only setting this to 'move' after verifying that the # whole setup is working) # antispam_signature_missing = move # move silently without training antispam_signature_missing = error antispam_trash = Trash antispam_spam = Junk antispam_pipe_program_spam_arg = --spam antispam_pipe_program_notspam_arg = --ham antispam_pipe_program = /usr/bin/sa-learn antispam_pipe_program_args = --username=%Lu } it seems to be going into the database ok but it doesn't seem to be applying anything it is learning. might there be some configuration option missing?

1 0

Ms Exchange vs dovecot
by Marc Roos 10 Jul '20

10 Jul '20

I have recently been working/testing with exchange 2016 and started thinking if I should even migrate to this platform. I assume more people here have experience with exchange and this idea. I was wondering if this is possible with a dovecot setup 1. public folder can be implemented with a public mailbox? 2. authorize users via groups access to mailboxes/folders of the public folder/mailbox. I think I saw ACL's with dovecot, does this compare to 'folder permissions' 3. is it possible with sieve to apply a rule on any mailbox/folder? Thus if I 'drag' a message to a folder, the sieve rule is activated?

18 25

Dovecot FTS with Solrcloud
by Patrik Peng 10 Jul '20

10 Jul '20

Greetings We are looking into a solution to set up full text search for our multiple Dovecot instances. According to the Dovecot Wiki, fts_solr is one of the recommended plugins to use. Since we have more than just a few hundred mailboxes, I guess one Solr instance will not suffice. So I took a look at SolrCloud and set up a small cluster with three nodes and shards. I have no preceding experience with Solr or SolrCloud and now it's not clear to me, how dovecot can interact with this cluster. Has anyone ever tried to setup dovecot FTS with a SolrCloud cluster and is willing to share his findings? Regards Patrik

1 0

BUG report: dbox movealt doesn't move reverse (to default location)
by Vitalii 09 Jul '20

09 Jul '20

Hi, Here is the problem that occured: #sudo doveadm -D altmove -u vv(a)vito.pp.ua all works properly and moves all storage to alt dir. However, to move it back to default storage I add '-r' by manual: #sudo doveadm -D altmove -u vv(a)vito.pp.ua -r all That seems behave like the original command ignoring '-r'. my dovecot conf: # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-9-amd64 x86_64 Debian 10.4 # Hostname: qemu7.internetguru.ca auth_mechanisms = plain login disable_plaintext_auth = no imapc_features = rfc822.size fetch-headers imapc_host = imap.gmail.com imapc_port = 993 imapc_ssl = imaps imapc_user = %u listen = *,[::] log_timestamp = "%Y-%m-%d %H:%M:%S " mail_attachment_dir = /wd640/mdbox-att/%d/%n mail_max_userip_connections = 100 mail_prefetch_count = 20 mail_privileged_group = vmail passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { quota = dict:user::file:/var/vmail/%d/%n/.quotausage sieve = /var/vmail/%d/%n/.sieve sieve_max_redirects = 25 } protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } user = root } service imap-login { client_limit = 1000 process_limit = 512 } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service stats { unix_listener stats-reader { group = vmail mode = 0660 user = vmail } unix_listener stats-writer { group = vmail mode = 0660 user = vmail } } ssl_cert = </etc/postfix/smtpd.cert ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol imap { mail_plugins = quota imap_quota } protocol pop3 { mail_plugins = quota pop3_uidl_format = %08Xu%08Xv } protocol lda { mail_plugins = sieve quota postmaster_address = postmaster(a)some.ca } protocol lmtp { mail_plugins = quota sieve postmaster_address = postmaster(a)some.ca } I am using debian 10. P.S. I have not found much information about dbox attachments commands. Seems none needs them.

1 0

Urgent Help required
by Kishore Potnuru 09 Jul '20

09 Jul '20

Hi All, I request your help on this. I have 2 dovecot test servers (IMAP protocol) installed with the following configuration. ============= [root@devap01 ~]# cat /etc/redhat-* Red Hat Enterprise Linux Server release 6.10 (Santiago) [root@devap01 ~]# dovecot --version 2.0.9 [root@devap01 ~]# postconf | grep mail_version mail_version = 2.6.6 =============== I have another server also "devap02" with the same configuration. Couple of points/questions/queries here. 1. I know these servers are having old dovecot versions. I would like to upgrade to the latest versions. Could you please suggest the steps for upgrading to the latest version in redhat (step by step details are helpful please) . If I upgrade to the latest version, will there be any impact on the existing configuration/setup? 2. Now I have added these 2 servers behind the Load Balancer. Enabled 110/143 ports on the Load Balancer FQDN (test.pop3.testing.com) and opened the firewall ports. Here I configured IMAP settings from microsoft outlook to see the emails. I gave the Incoming Mail Server & Outgoing mail server as "test.pop3.testing.com". It is configured without errors in Outlook. But I see these 2 types issues (shared storage & individual storage) a) individual separate storage - When I send 10 emails to LB FQDN ( test.pop3.testing.com) the emails are going to 2 backend servers. But when i see the emails from Outlook inbox, it shows 5 emails from one server for some time. After sometime it shows other 5 emails in the inbox. But, I am not able to see all 10 emails at same time in my inbox. Please suggest how to fix this issue? In this scenario, I have separate individual storage in both the servers. b) common shared storage - I have tried a different scenario also. I also have one common NFS storage. So, I have configured that storage in both the servers. So when I sent 10 emails, I see all the 10 emails from both the servers as it is common shared storage. But, I am not getting those 10 emails delivered into my Outlook. I have made all the configuration correctly. Please suggest what is the mistake here. Dovecot.conf ========================================================= [root@devap01 ~]# cat /etc/dovecot/dovecot.conf disable_plaintext_auth = no listen = * log_path = /var/log/dovecot.log mail_location = maildir:/r3/mail/virtual/%d/%n/Maildir/ passdb { args = /etc/dovecot/passwd driver = passwd-file } pop3_uidl_format = %g protocols = imap pop3 ssl = yes ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { args = uid=vmail gid=vmail home=/r3/mail/virtual/%d/%n driver = static } mail_debug = no verbose_ssl = no ========================================================= Please help me here. Thanks, Kishore Potnuru

9 15

Dovecot - Xoauth2 - keycloak
by la.jolie＠paquerette 09 Jul '20

09 Jul '20

Hello, Still trying to make roundcube / Dovecot works with Keycloak. Dovecot can't seem to validate the access_token that Roundcube gave. ----- Jul 08 20:48:05 auth: Debug: http-client[1]: request [Req1: GET https://my.keycloak.host/auth/realms/test_saml/protocol/openid-connect/toke…] Sent header Jul 08 20:48:05 auth: Debug: http-client[1]: peer 11.22.33.44:443: No more requests to service for this peer (1 connections exist, 0 pending) Jul 08 20:48:05 auth: Debug: http-client[1]: conn 11.22.33.44:443 [0]: Got 404 response for request [Req1: GET https://my.keycloak.host/auth/realms/test_saml/protocol/openid-connect/toke…] (took 11 ms + 19 ms in queue) Jul 08 20:48:05 auth: Debug: oauth2(my.mail@whatever,::1,<Z2mDOfSpJJ8AAAAAAAAAAAAAAAAAAAAB>): oauth2: callback(0, Invalid token) ---- The access_token used by Dovecot is the right one. Dovecot also has the right login (my.mail@whatever) The Nginx and Keycloak logs show this: ---- - - [08/Jul/2020:23:25:18 +0200] "POST /auth/realms/test_saml/protocol/openid-connect/token HTTP/1.1" 200 3171 "-" "Guzzle/5.3.1 curl/7.64.0 PHP/7.3.14-1~deb10u1" - - [08/Jul/2020:23:42:05 +0200] "GET /auth/realms/test_saml/protocol/openid-connect/tokeneyJhbGciOiJFUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICJEZzR2aWtndzN2MWVpQVgxMU10YkFIaXRaUnM2R2RlVzN3b3hGTTBpd1NnIn0.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.TsUBiZ5nSTuA9ojr6bao5NQUHeNRmcYQZsC95rrhYca9FsFG4xG8mT53X9eOSNEqzRMJiPHaDuAh-3Bq8Rjdlg HTTP/1.1" 404 1465 "-" "dovecot-oauth2-passdb/2.3.4.1" DEBUG [org.jboss.resteasy.resteasy_jaxrs.i18n] (default task-2) RESTEASY002315: PathInfo: /realms/test_saml/protocol/openid-connect/tokeneyJhbGciOiJFUzI1N iIsInR5cCIgOiAiSldUIiwia2lkIiA6ICJEZzR2aWtndzN2MWVpQVgxMU10YkFIaXRaUnM2R2RlVzN3b3hGTTBpd1NnIn0.eyJleHAiOjE1OTQyNDQ3MDQsImlhdCI6MTU5NDI0NDUyNCwiYXV0aF90aW1lIjoxNTk0MjQ0MzQ3LCJqdGk iOiIyYTg3MjQ3NS0zMGMxLTRmMDctODg5Ny04YmQ4OTJjMGI1MjEiLCJpc3MiOiJodHRwczovL3Nzby5udWJvLmNvb3AvYXV0aC9yZWFsbXMvdGVzdF9zYW1sIiwiYXVkIjoiYWNjb3VudCIsInN1YiI6IjhlZWNiODVjLTZlMDYtNGZhN C1iYTAwLTdlMGRlM2MyMWYxNCIsInR5cCI6IkJlYXJlciIsImF6cCI6InJvdW5kY3ViZSIsInNlc3Npb25fc3RhdGUiOiJmMjY0OTQyMy0xNmZkLTQzMTgtYTVkYy04NWJhNmU3YTQ4MWYiLCJhY3IiOiIwIiwiYWxsb3dlZC1vcmlnaW5 zIjpbImh0dHA6Ly9yYy5udWJvLmRvbWFpbmVwdWJsaWMubmV0Il0sInJlYWxtX2FjY2VzcyI6eyJyb2xlcyI6WyJvZmZsaW5lX2FjY2VzcyIsInVtYV9hdXRob3JpemF0aW9uIl19LCJyZXNvdXJjZV9hY2Nlc3MiOnsiYWNjb3VudCI6e yJyb2xlcyI6WyJtYW5hZ2UtYWNjb3VudCIsIm1hbmFnZS1hY2NvdW50LWxpbmtzIiwidmlldy1wcm9maWxlIl19fSwic2NvcGUiOiJvcGVuaWQgbWljcm9wcm9maWxlLWp3dCBwcm9maWxlIGVtYWlsIG9mZmxpbmVfYWNjZXNzIiwidWl kIjoicXVlbmVubmkiLCJ1cG4iOiJxdWVuZW5uaSIsImVtYWlsX3ZlcmlmaWVkIjpmYWxzZSwibmFtZSI6Iktlbm55IExvdXZlYXV4IExvdXZlYXV4IiwiZ3JvdXBzIjpbIm9mZmxpbmVfYWNjZXNzIiwidW1hX2F1dGhvcml6YXRpb24iX SwicHJlZmVycmVkX3VzZXJuYW1lIjoicXVlbmVubmkiLCJnaXZlbl9uYW1lIjoiS2VubnkgTG91dmVhdXgiLCJmYW1pbHlfbmFtZSI6IkxvdXZlYXV4IiwiZW1haWwiOiJrZW5ueUBudWJvLnNpdGUifQ.TsUBiZ5nSTuA9ojr6bao5NQUHe NRmcYQZsC95rrhYca9FsFG4xG8mT53X9eOSNEqzRMJiPHaDuAh-3Bq8Rjdlg --- Dovecot does a GET request where the access_token is directly attached to the 'tokeninfo_url' option. Is that the correct/normal way? Shouldn't it be a POST with data passed as params? Or is it Keycloak that should accept that request? Thanks Kenny

2 1

Re: Urgent Help required
by Kishore Potnuru 08 Jul '20

08 Jul '20

Hi, Our organisation has dependencies. There is a separate team/department who creates the servers for us. When they build a new RHEL system, the system will come up with various in-house softwares/tools. Those tools are not compatible as of now with RHEL8. So, our organisation is going with redhat 7.7 only as of today which is supported for all in-house tools also. This is my current situation: 1) I have 2 test servers which are loaded with the following configuration. ============= [root@devap01 ~]# cat /etc/redhat-* Red Hat Enterprise Linux Server release 6.10 (Santiago) [root@devap01 ~]# dovecot --version 2.0.9 [root@devap01 ~]# postconf | grep mail_version mail_version = 2.6.6 =============== So, I would like to install the max possible dovecot version on the above servers for the testing purpose. I would like to implement the HA/Resilience with those 2 servers. I have shared storage and individual storage in this environment. But I am seeing some issues with both of them ( I explained details in my first email thread). please see if you can help. 2) If it is successful, I will get two RHEL 7.7 servers to implement the same in LIVE environment for HA/Resilience. First I am going with compatibility issues to resolve in my environment. Once that is resolved, I will go with HA/Resilience implementation. Please let me know if you need any more details. Thanks & Regards, Kishore Potnuru On Wed, Jul 8, 2020 at 8:57 PM Marc Roos <M.Roos(a)f1-outsourcing.eu> wrote: > > > >>> with broken or vulnerable software is there really a benefit? > >> > >> LTS distributions back port necessary patches > > >Then the OP should be able to update to a dovecot that doesn't have the > issue, right? > > I have no idea what his issue is, and why he is stuck even in specific > releases. I have been running dovecot on el6 and el7 for years and years > without issues. > > > > > > > >

2 1

RE: Urgent Help required
by Marc Roos 08 Jul '20

08 Jul '20

>>The other side of the question is, Why is the software always so "vulnerable" and "broken" in the first >>place as to be unsuitable for Long Term Support? >> >>If the software code worked when it was released some number of years ago, then why doesn't it still work >>the same way today as it it did when it was released? Whenever I hear people complain about computers and/or software. I always suggest them to use something like the abacus of 2000 bc. You should be glad for what they do for you ;) And since humans operate them, you will find annoyances as with doctors amputating the wrong limb.

1 0

Re: Urgent Help required
by Kishore Potnuru 08 Jul '20

08 Jul '20

Thank you for your reply. 1. Am i able to upgrade directly from 2.0 to 2.3? or I should go periodically from 2.0 to 2.1, then 2.1 to 2.2, then 2.2 to 2.3....? 2. could you please suggest me steps to pick the correct package to upgrade in the above version (2.1, 2.2, 2.3)? 3. which location i need to download the packages? 4. I am using redhat servers. Am i able to directly download and upgrade the software from my redhat linux server? please advise step-by-step instructions for this? Thanks, Kishore Potnuru On Wed, Jul 8, 2020 at 11:00 AM Apostolis Hardalias <a.hardalias(a)skroutz.gr> wrote: > > On 7/8/20 12:53 PM, Kishore Potnuru wrote: > > Hi All, > > > > I request your help on this. > > > > I have 2 dovecot test servers (IMAP protocol) installed with the > > following configuration. > > ============= > > [root@devap01 ~]# cat /etc/redhat-* > > Red Hat Enterprise Linux Server release 6.10 (Santiago) > > > > [root@devap01 ~]# dovecot --version > > 2.0.9 > > > > [root@devap01 ~]# postconf | grep mail_version > > mail_version = 2.6.6 > > =============== > > > > I have another server also "devap02" with the same configuration. > > > > Couple of points/questions/queries here. > > > > 1. I know these servers are having old dovecot versions. I would like > > to upgrade to the latest versions. Could you please suggest the steps > > for upgrading to the latest version in redhat (step by step details > > are helpful please) . If I upgrade to the latest version, will there > > be any impact on the existing configuration/setup? > > Check the documents posted here: > > https://doc.dovecot.org/installation_guide/upgrading/from-2.0-to-2.1/ > > https://doc.dovecot.org/installation_guide/upgrading/from-2.1-to-2.2/ > > https://doc.dovecot.org/installation_guide/upgrading/from-2.2-to-2.3/ > > Depending on your setup, you may also need to check for changes to > additional software (e.g. amavis) > > > > > 2. Now I have added these 2 servers behind the Load Balancer. Enabled > > 110/143 ports on the Load Balancer FQDN (test.pop3.testing.com > > <http://test.pop3.testing.com>) and opened the firewall ports. Here I > > configured IMAP settings from microsoft outlook to see the emails. I > > gave the Incoming Mail Server & Outgoing mail server as > > "test.pop3.testing.com <http://test.pop3.testing.com>". It is > > configured without errors in Outlook. But I see these 2 types issues > > (shared storage & individual storage) > > > > a) individual separate storage - When I send 10 emails to LB FQDN > > (test.pop3.testing.com <http://test.pop3.testing.com>), the emails are > > going to 2 backend servers. But when i see the emails from Outlook > > inbox, it shows 5 emails from one server for some time. After sometime > > it shows other 5 emails in the inbox. But, I am not able to see all 10 > > emails at same time in my inbox. Please suggest how to fix this issue? > > In this scenario, I have separate individual storage in both the servers. > > I'm not sure if you've set it up already because it's unclear from the > configuration you posted but, you may wanna have a look at: > https://wiki.dovecot.org/Replication > > I suggest using replication after you've upgraded since earlier versions > of dovecot had a few issues. > > > > b) common shared storage - I have tried a different scenario also. > > I also have one common NFS storage. So, I have configured that storage > > in both the servers. So when I sent 10 emails, I see all the 10 emails > > from both the servers as it is common shared storage. But, I am not > > getting those 10 emails delivered into my Outlook. I have made all the > > configuration correctly. Please suggest what is the mistake here. > > > > Dovecot.conf > > ========================================================= > > > > [root@devap01 ~]# cat /etc/dovecot/dovecot.conf > > disable_plaintext_auth = no > > > > listen = * > > log_path = /var/log/dovecot.log > > mail_location = maildir:/r3/mail/virtual/%d/%n/Maildir/ > > passdb { > > args = /etc/dovecot/passwd > > driver = passwd-file > > } > > pop3_uidl_format = %g > > protocols = imap pop3 > > ssl = yes > > ssl_cert = </etc/pki/dovecot/certs/dovecot.pem > > ssl_key = </etc/pki/dovecot/private/dovecot.pem > > > > userdb { > > args = uid=vmail gid=vmail home=/r3/mail/virtual/%d/%n > > driver = static > > } > > mail_debug = no > > verbose_ssl = no > > ========================================================= > > > > Please help me here. > > > > Thanks, > > Kishore Potnuru >

1 1

Dovecot Maildirs multi language
by Luca Müller 07 Jul '20

07 Jul '20

Hello, I'm hosting a few customers on a dovecot Server. Most users speak german and have german as their main language. I configured the IMAP Foldernames in a Dovecot configuration file like this: ##### root@srv04:~# cat /etc/dovecot/conf.d/105-mailboxes.conf imap_capability = +XLIST namespace inbox { inbox = yes location = separator = / mailbox "Entwürfe" { auto = subscribe special_use = \Drafts auto=subscribe } mailbox Junk-E-Mail { special_use = \Junk auto=subscribe } mailbox "Gelöschte Elemente" { special_use = \Trash auto=subscribe } mailbox "Gesendete Elemente" { special_use = \Sent auto=subscribe } mailbox Archive { special_use = \Archive auto=subscribe } } ##### Dovecot Version: 2.3.10 (0da0eff44) ##### Is it possible to change this configuration for specific users or to provide multi language support somehow? Thanks in advance. Best regards, Luca

4 4

dovecot oauth
by la.jolie＠paquerette 06 Jul '20

06 Jul '20

Hello, I'm trying to configure roundcube / dovecot to work with keycloak. I activated xoauth2 oauthbearer in dovecot. But a problem occurs when dovecot tries to contact the keycloak server (logs are below). My problem looks like this one: https://dovecot.org/pipermail/dovecot/2019-December/117768.html The response to this problem was about a bug in oauth driver (https://dovecot.org/pipermail/dovecot/2019-December/117787.html) Mizuki was using Dovecot v2.2.36 (1f10bfa63) I have Dovecot Dovecot v2.3.4.1 (f79e8e7e4) I'm wondering if this bug is still present in my version or if I have another problem. Both my servers (dovecot and keycloak) are using let's encrypt certificates. I tried to configure Keycloak with nginx proxy and without it (access via port 8443) (in case the problem came from the ssl config on the keycloak server), but still the same error. If the bug is fixed, then could someone tell me what do I have to put in the option tls_ca_cert_file? I tried with /etc/letsencrypt/live/my.host/chain.pem and also certs I got from let's encrypt website (https://letsencrypt.org/certificates/ / tried ISRG Root X1 (self-signed) & Let’s Encrypt Authority X3 (IdenTrust cross-signed) & Let’s Encrypt Authority X3 (Signed by ISRG Root X1)) But I always have the same error. Thanks, Kenny My configs: - I'm on a Debian Buster with Dovecot / postfix / roundcube - dovecot -n : --- # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-5-cloud-amd64 x86_64 Debian 10.4 auth_debug = yes auth_mechanisms = xoauth2 oauthbearer login auth_verbose = yes debug_log_path = /var/log/dovecot-debug.log first_valid_gid = 10000 first_valid_uid = 10000 info_log_path = /var/log/dovecot.log last_valid_gid = 20000 last_valid_uid = 20000 lda_mailbox_autocreate = yes log_path = /var/log/dovecot.log mail_debug = yes mail_gid = mail mail_location = maildir:~/Maildir mail_privileged_group = mail namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } passdb { args = /etc/dovecot/dovecot-oauth2.conf.ext driver = oauth2 mechanisms = xoauth2 oauthbearer } plugin { sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = " imap" service auth { unix_listener /var/spool/postfix/private/auth { mode = 0600 user = postfix } unix_listener auth-master { mode = 0600 user = mail } unix_listener auth-userdb { mode = 0600 user = mail } } service stats { unix_listener stats-reader { mode = 0600 user = mail } unix_listener stats-writer { mode = 0600 user = mail } } ssl_cert = </etc/letsencrypt/live/my.host/fullchain.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes ssl_require_crl = no userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } userdb { args = gid=mail home=/var/mail/%u driver = static } verbose_ssl = yes protocol lda { info_log_path = /var/log/dovecot-deliver.log log_path = /var/log/dovecot-deliver-errors.log } ------ - dovecot-oauth2.conf.ext ----- tokeninfo_url = https://my.keycloak.host/auth/realms/test_saml/protocol/openid-connect/token introspection_mode = post introspection_url = https://my.keycloak.host/auth/realms/test_saml/protocol/openid-connect/toke… username_attribute = email tls_ca_cert_file = /etc/letsencrypt/live/my.host/chain.pem #tls_ca_cert_file = /etc/ssl/certs/letsencrypt.pem #active_attribute = enableMail #active_value = TRUE debug = yes rawlog_dir = /tmp/oauth2 ----- * Logs: ------- Jul 04 17:00:12 auth: Debug: oauth2(my.mail@whatever,::1,<fG8uk6CpBJ0AAAAAAAAAAAAAAAAAAAAB>): oauth2: Making token validation lookup to https://my.keycloak.host/auth/realms/test_saml/protocol/openid-connect/token Jul 04 17:00:12 auth: Debug: http-client: host my.keycloak.host: Host created Jul 04 17:00:12 auth: Debug: http-client: host my.keycloak.host: Host session created Jul 04 17:00:12 auth: Debug: http-client: host my.keycloak.host: IPs have expired; need to refresh DNS lookup Jul 04 17:00:12 auth: Debug: http-client: host my.keycloak.host: Performing asynchronous DNS lookup Jul 04 17:00:12 auth: Debug: http-client[1]: request [Req1: GET https://my.keycloak.host/auth/realms/test_saml/protocol/openid-connect/toke…... (long token)]: Submitted (requests left=1) Jul 04 17:00:12 auth: Debug: http-client: host my.keycloak.host: DNS lookup successful; got 1 IPs Jul 04 17:00:12 auth: Debug: http-client: peer 151.62.56.14 (shared): Peer created Jul 04 17:00:12 auth: Debug: http-client: peer 151.62.56.14: Peer pool created Jul 04 17:00:12 auth: Debug: http-client[1]: peer 151.62.56.14: Peer created Jul 04 17:00:12 auth: Debug: http-client[1]: queue https://my.keycloak.host: Setting up connection to 151.62.56.14 (SSL=my.keycloak.host) (1 requests pending) Jul 04 17:00:12 auth: Debug: http-client[1]: peer 151.62.56.14: Linked queue https://my.keycloak.host (1 queues linked) Jul 04 17:00:12 auth: Debug: http-client[1]: queue https://my.keycloak.host: Started new connection to 151.62.56.14 (SSL=my.keycloak.host) Jul 04 17:00:12 auth: Debug: http-client[1]: peer 151.62.56.14: Creating 1 new connections to handle requests (already 0 usable, connecting to 0, closing 0) Jul 04 17:00:12 auth: Debug: http-client[1]: peer 151.62.56.14: Making new connection 1 of 1 (0 connections exist, 0 pending) Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: (151.62.56.14): Connecting Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: (151.62.56.14): Waiting for connect (fd=22) to finish for max 0 msecs Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: HTTPS connection created (1 parallel connections exist) Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: (151.62.56.14): Client connected (fd=22) Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: Connected Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: Starting SSL handshake Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x10, ret=1: before SSL initialization Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: before SSL initialization Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS write client hello Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1002, ret=-1: SSLv3/TLS write client hello Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1002, ret=-1: SSLv3/TLS write client hello Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS write client hello Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS read server hello Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL error: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS read server certificate Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS read server key exchange Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS read server done Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS write client key exchange Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS write change cipher spec Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS write finished Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1002, ret=-1: SSLv3/TLS write finished Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1002, ret=-1: SSLv3/TLS write finished ==> dovecot.log <== Jul 04 17:00:12 auth: Info: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 ==> dovecot-debug.log <== Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1002, ret=-1: SSLv3/TLS write finished Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS write finished Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS read change cipher spec Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1001, ret=1: SSLv3/TLS read finished Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x20, ret=1: SSL negotiation finished successfully Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL: where=0x1002, ret=1: SSL negotiation finished successfully Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL error: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 Jul 04 17:00:12 auth: Debug: http-client[1]: peer 151.62.56.14: Connection failed (1 connections exist, 0 pending) Jul 04 17:00:12 auth: Debug: http-client: peer 151.62.56.14: Failed to make connection (1 connections exist, 0 pending) Jul 04 17:00:12 auth: Debug: http-client[1]: peer 151.62.56.14: Failed to establish any connection within our peer pool: SSL handshaking with 151.62.56.14 failed: read(SSL 151.62.56.14) failed: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 (1 connections exist, 0 pending) Jul 04 17:00:12 auth: Debug: http-client[1]: queue https://my.keycloak.host: Failed to set up connection to 151.62.56.14 (SSL=my.keycloak.host): SSL handshaking with 151.62.56.14 failed: read(SSL 151.62.56.14) failed: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 (1 peers pending, 1 requests pending) Jul 04 17:00:12 auth: Debug: http-client[1]: queue https://my.keycloak.host: Failed to set up any connection; failing all queued requests Jul 04 17:00:12 auth: Debug: http-client[1]: peer 151.62.56.14: Unlinked queue https://my.keycloak.host (0 queues linked) Jul 04 17:00:12 auth: Debug: http-client[1]: request [Req1: GET https://my.keycloak.host/auth/realms/test_saml/protocol/openid-connect/toke…... (long token)]: Error: 9003 SSL handshaking with 151.62.56.14 failed: read(SSL 151.62.56.14) failed: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 Jul 04 17:00:12 auth: Debug: http-client[1]: queue https://my.keycloak.host: Dropping request [Req1: GET https://my.keycloak.host/auth/realms/test_saml/protocol/openid-connect/toke…... (long token)] Jul 04 17:00:12 auth: Debug: oauth2(my.mail@whatever,::1,<fG8uk6CpBJ0AAAAAAAAAAAAAAAAAAAAB>): oauth2: callback(-1, SSL handshaking with 151.62.56.14 failed: read(SSL 151.62.56.14) failed: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3) ==> dovecot.log <== Jul 04 17:00:12 auth: Error: oauth2(my.mail@whatever,::1,<fG8uk6CpBJ0AAAAAAAAAAAAAAAAAAAAB>): oauth2 failed: SSL handshaking with 151.62.56.14 failed: read(SSL 151.62.56.14) failed: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 ==> dovecot-debug.log <== Jul 04 17:00:12 auth: Debug: http-client[1]: request [Req1: GET https://my.keycloak.host/auth/realms/test_saml/protocol/openid-connect/toke…... (long token)]: Destroy (requests left=1) Jul 04 17:00:12 auth: Debug: http-client[1]: request [Req1: GET https://my.keycloak.host/auth/realms/test_saml/protocol/openid-connect/toke…... (long token)]: Free (requests left=0) Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: SSL handshaking with 151.62.56.14 failed: read(SSL 151.62.56.14) failed: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: Connection close Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: Connection disconnect Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: (151.62.56.14): Disconnected: Connection closed: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 (fd=22) Jul 04 17:00:12 auth: Debug: my.keycloak.host: SSL error: Received invalid SSL certificate: unable to get issuer certificate: /C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3 Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: Detached peer Jul 04 17:00:12 auth: Debug: http-client[1]: conn 151.62.56.14 [0]: Connection destroy -------

2 4

export of information about mail into csv
by Marcel Blenkers 05 Jul '20

05 Jul '20

3 3

Quota: How/where to set/change
by Frank Elsner 03 Jul '20

03 Jul '20

Hi experts. in the output of imapsync I found: Host2: found quota, presented in raw IMAP Sending: 7 GETQUOTAROOT INBOX Sent 22 bytes Read: * QUOTAROOT INBOX "User quota" * QUOTA "User quota" (STORAGE 420325 1953125) 7 OK Getquotaroot completed (0.001 + 0.000 secs). Host2: Quota current storage is 430412800 bytes. Limit is 2000000000 bytes. So 21.52 % full Host2 is under my control and running dovecot-2.3.10.1. I need to increase the quota above 2 GB but don't know where it comes from and therefor don't know what to do. This is the doveconf -a: | # 2.3.10.1 (a3d0e1171): /usr/local/dovecot/etc/dovecot/dovecot.conf | # OS: Linux 5.7.6-201.fc32.x86_64 x86_64 Fedora release 32 (Thirty Two) ext3 | # Hostname: christo.fritz.box | # NOTE: Send doveconf -n output instead when asking for help. | auth_anonymous_username = anonymous | auth_cache_negative_ttl = 1 hours | auth_cache_size = 0 | auth_cache_ttl = 1 hours | auth_cache_verify_password_with_worker = no | auth_debug = no | auth_debug_passwords = no | auth_default_realm = | auth_failure_delay = 2 secs | auth_gssapi_hostname = | auth_krb5_keytab = | auth_master_user_separator = | auth_mechanisms = plain login | auth_policy_check_after_auth = yes | auth_policy_check_before_auth = yes | auth_policy_hash_mech = sha256 | auth_policy_hash_nonce = | auth_policy_hash_truncate = 12 | auth_policy_log_only = no | auth_policy_reject_on_fail = no | auth_policy_report_after_auth = yes | auth_policy_request_attributes = login=%{requested_username} pwhash=%{hashed_password} remote=%{rip} device_id=%{client_id} protocol=%s | auth_policy_server_api_header = | auth_policy_server_timeout_msecs = 2000 | auth_policy_server_url = | auth_proxy_self = | auth_realms = | auth_socket_path = auth-userdb | auth_ssl_require_client_cert = no | auth_ssl_username_from_cert = no | auth_stats = no | auth_use_winbind = no | auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@ | auth_username_format = %Lu | auth_username_translation = | auth_verbose = no | auth_verbose_passwords = no | auth_winbind_helper_path = /usr/bin/ntlm_auth | auth_worker_max_count = 30 | base_dir = /var/run/dovecot | config_cache_size = 1 M | debug_log_path = | default_client_limit = 1024 | default_idle_kill = 1 mins | default_internal_group = dovecot | default_internal_user = dovecot | default_login_user = dovenull | default_process_limit = 256 | default_vsz_limit = 512 M | deliver_log_format = msgid=%m: %$ | dict_db_config = | director_flush_socket = | director_mail_servers = | director_max_parallel_kicks = 100 | director_max_parallel_moves = 100 | director_output_buffer_size = 10 M | director_ping_idle_timeout = 30 secs | director_ping_max_timeout = 1 mins | director_servers = | director_user_expire = 15 mins | director_user_kick_delay = 2 secs | director_username_hash = %Lu | disable_plaintext_auth = yes | dotlock_use_excl = yes | doveadm_allowed_commands = | doveadm_api_key = | doveadm_http_rawlog_dir = | doveadm_password = | doveadm_port = 0 | doveadm_socket_path = doveadm-server | doveadm_ssl = no | doveadm_username = doveadm | doveadm_worker_count = 0 | dsync_alt_char = _ | dsync_commit_msgs_interval = 100 | dsync_features = | dsync_hashed_headers = Date Message-ID | dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%u -U | first_valid_gid = 1 | first_valid_uid = 200 | haproxy_timeout = 3 secs | haproxy_trusted_networks = | hostname = | imap_capability = | imap_client_workarounds = | imap_fetch_failure = disconnect-immediately | imap_hibernate_timeout = 0 | imap_id_log = | imap_id_retain = no | imap_id_send = name * | imap_idle_notify_interval = 2 mins | imap_literal_minus = no | imap_logout_format = in=%i out=%o deleted=%{deleted} expunged=%{expunged} trashed=%{trashed} hdr_count=%{fetch_hdr_count} hdr_bytes=%{fetch_hdr_bytes} body_count=%{fetch_body_count} body_bytes=%{fetch_body_bytes} | imap_max_line_length = 64 k | imap_metadata = no | imap_urlauth_host = | imap_urlauth_logout_format = in=%i out=%o | imap_urlauth_port = 143 | imapc_cmd_timeout = 5 mins | imapc_connection_retry_count = 1 | imapc_connection_retry_interval = 1 secs | imapc_features = | imapc_host = | imapc_list_prefix = | imapc_master_user = | imapc_max_idle_time = 29 mins | imapc_max_line_length = 0 | imapc_password = | imapc_port = 143 | imapc_rawlog_dir = | imapc_sasl_mechanisms = | imapc_ssl = no | imapc_ssl_verify = yes | imapc_user = | import_environment = TZ CORE_OUTOFMEM CORE_ERROR | info_log_path = | instance_name = dovecot | last_valid_gid = 0 | last_valid_uid = 65534 | lda_mailbox_autocreate = no | lda_mailbox_autosubscribe = no | lda_original_recipient_header = | libexec_dir = /usr/local/dovecot/libexec/dovecot | listen = * | lmtp_add_received_header = yes | lmtp_client_workarounds = | lmtp_hdr_delivery_address = final | lmtp_proxy = no | lmtp_proxy_rawlog_dir = | lmtp_rawlog_dir = | lmtp_rcpt_check_quota = no | lmtp_save_to_detail_mailbox = yes | lmtp_user_concurrency_limit = 0 | lock_method = fcntl | log_core_filter = | log_debug = | log_path = syslog | log_timestamp = "%b %d %H:%M:%S " | login_access_sockets = | login_greeting = m28a.ddns.net - IMAPs Service (dovecot) ready. | login_log_format = %$: %s | login_log_format_elements = %u %r %c | login_plugin_dir = /usr/local/dovecot/lib/dovecot/login | login_plugins = | login_proxy_max_disconnect_delay = 0 | login_proxy_notify_path = proxy-notify | login_source_ips = | login_trusted_networks = | mail_access_groups = | mail_always_cache_fields = | mail_attachment_detection_options = | mail_attachment_dir = | mail_attachment_fs = sis posix | mail_attachment_hash = %{sha1} | mail_attachment_min_size = 128 k | mail_attribute_dict = | mail_cache_compress_continued_percentage = 200 | mail_cache_compress_delete_percentage = 20 | mail_cache_compress_header_continue_count = 4 | mail_cache_compress_min_size = 32 k | mail_cache_fields = flags | mail_cache_min_mail_count = 0 | mail_cache_record_max_size = 64 k | mail_cache_unaccessed_field_drop = 30 days | mail_chroot = | mail_debug = no | mail_fsync = optimized | mail_full_filesystem_access = no | mail_gid = | mail_home = | mail_index_log2_max_age = 2 days | mail_index_log_rotate_max_size = 1 M | mail_index_log_rotate_min_age = 5 mins | mail_index_log_rotate_min_size = 32 k | mail_index_rewrite_max_log_bytes = 128 k | mail_index_rewrite_min_log_bytes = 8 k | mail_location = maildir:/var/spool/mail/%u:LAYOUT=fs | mail_log_prefix = "%Us(%u,%r): " | mail_max_keyword_length = 50 | mail_max_lock_timeout = 0 | mail_max_userip_connections = 10 | mail_never_cache_fields = imap.envelope | mail_nfs_index = no | mail_nfs_storage = no | mail_plugin_dir = /usr/dovecot/lib/dovecot/ | mail_plugins = notify quota fts fts_squat acl | mail_prefetch_count = 0 | mail_privileged_group = | mail_save_crlf = no | mail_server_admin = | mail_server_comment = | mail_shared_explicit_inbox = no | mail_sort_max_read_count = 0 | mail_temp_dir = /tmp | mail_temp_scan_interval = 1 weeks | mail_uid = | mail_vsize_bg_after_count = 0 | mailbox_idle_check_interval = 30 secs | mailbox_list_index = yes | mailbox_list_index_include_inbox = no | mailbox_list_index_very_dirty_syncs = no | maildir_broken_filename_sizes = no | maildir_copy_with_hardlinks = yes | maildir_empty_new = no | maildir_stat_dirs = no | maildir_very_dirty_syncs = no | master_user_separator = | mbox_dirty_syncs = yes | mbox_dotlock_change_timeout = 2 mins | mbox_lazy_writes = yes | mbox_lock_timeout = 5 mins | mbox_md5 = apop3d | mbox_min_index_size = 0 | mbox_read_locks = fcntl | mbox_very_dirty_syncs = no | mbox_write_locks = dotlock fcntl | mdbox_preallocate_space = no | mdbox_rotate_interval = 0 | mdbox_rotate_size = 10 M | mmap_disable = no | namespace inbox { | disabled = no | hidden = no | ignore_on_failure = no | inbox = yes | list = yes | location = | mailbox Drafts { | auto = no | autoexpunge = 0 | autoexpunge_max_mails = 0 | comment = | driver = | special_use = \Drafts | } | mailbox Gesendet { | auto = no | autoexpunge = 0 | autoexpunge_max_mails = 0 | comment = | driver = | special_use = \Sent | } | mailbox SPAM { | auto = no | autoexpunge = 0 | autoexpunge_max_mails = 0 | comment = | driver = | special_use = \Junk | } | mailbox Sent { | auto = no | autoexpunge = 0 | autoexpunge_max_mails = 0 | comment = | driver = | special_use = \Sent | } | mailbox Trash { | auto = no | autoexpunge = 0 | autoexpunge_max_mails = 0 | comment = | driver = | special_use = \Trash | } | order = 0 | prefix = | separator = | subscriptions = yes | type = private | } | old_stats_carbon_interval = 30 secs | old_stats_carbon_name = | old_stats_carbon_server = | old_stats_command_min_time = 1 mins | old_stats_domain_min_time = 12 hours | old_stats_ip_min_time = 12 hours | old_stats_memory_limit = 16 M | old_stats_session_min_time = 15 mins | old_stats_user_min_time = 1 hours | passdb { | args = dovecot | auth_verbose = default | default_fields = | deny = no | driver = pam | master = no | mechanisms = | name = | override_fields = | pass = no | result_failure = continue | result_internalfail = continue | result_success = return-ok | skip = never | username_filter = | } | plugin { | fts = squat | fts_squat = partial=4 full=10 | mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename flag_change append | mail_log_fields = uid box from subject msgid size flags | mail_log_group_events = yes | quota = maildir:User quota | quota_rule = ?:storage=5G | quota_rule2 = Trash:storage=+100M | } | pop3_client_workarounds = | pop3_delete_type = default | pop3_deleted_flag = | pop3_enable_last = no | pop3_fast_size_lookups = no | pop3_lock_session = no | pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s | pop3_no_flag_updates = no | pop3_reuse_xuidl = no | pop3_save_uidl = no | pop3_uidl_duplicates = allow | pop3_uidl_format = %08Xu%08Xv | pop3c_features = | pop3c_host = | pop3c_master_user = | pop3c_password = | pop3c_port = 110 | pop3c_quick_received_date = no | pop3c_rawlog_dir = | pop3c_ssl = no | pop3c_ssl_verify = yes | pop3c_user = %u | postmaster_address = mailonator(a)mailbox.org | protocols = imap | quota_full_tempfail = no | rawlog_dir = | recipient_delimiter = + | rejection_reason = Your message to <%t> was automatically rejected:%n%r | rejection_subject = Rejected: %s | replication_dsync_parameters = -d -N -l 30 -U | replication_full_sync_interval = 1 days | replication_max_conns = 10 | replicator_host = replicator | replicator_port = 0 | sendmail_path = /usr/sbin/sendmail | service aggregator { | chroot = . | client_limit = 0 | drop_priv_before_exec = no | executable = aggregator | extra_groups = | fifo_listener replication-notify-fifo { | group = | mode = 0600 | user = | } | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener replication-notify { | group = | mode = 0600 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service anvil { | chroot = empty | client_limit = 1024 | drop_priv_before_exec = no | executable = anvil | extra_groups = | group = | idle_kill = 4294967295 secs | privileged_group = | process_limit = 1 | process_min_avail = 1 | protocol = | service_count = 0 | type = anvil | unix_listener anvil-auth-penalty { | group = | mode = 0600 | user = | } | unix_listener anvil { | group = | mode = 0600 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service auth-worker { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = auth -w | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = | service_count = 1 | type = | unix_listener auth-worker { | group = | mode = 0600 | user = $default_internal_user | } | user = | vsz_limit = 18446744073709551615 B | } | service auth { | chroot = | client_limit = 0 | drop_priv_before_exec = no | executable = auth | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 1 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener auth-client { | group = exim | mode = 0660 | user = exim | } | unix_listener auth-login { | group = | mode = 0600 | user = $default_internal_user | } | unix_listener auth-master { | group = | mode = 0600 | user = | } | unix_listener auth-userdb { | group = | mode = 0666 | user = $default_internal_user | } | unix_listener login/login { | group = | mode = 0666 | user = | } | unix_listener token-login/tokenlogin { | group = | mode = 0666 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service config { | chroot = | client_limit = 0 | drop_priv_before_exec = no | executable = config | extra_groups = | group = | idle_kill = 4294967295 secs | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = | service_count = 0 | type = config | unix_listener config { | group = | mode = 0600 | user = | } | user = | vsz_limit = 18446744073709551615 B | } | service dict-async { | chroot = | client_limit = 0 | drop_priv_before_exec = no | executable = dict | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener dict-async { | group = $default_internal_group | mode = 0660 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service dict { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = dict | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener dict { | group = $default_internal_group | mode = 0660 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service director { | chroot = . | client_limit = 0 | drop_priv_before_exec = no | executable = director | extra_groups = | fifo_listener login/proxy-notify { | group = | mode = 00 | user = | } | group = | idle_kill = 4294967295 secs | privileged_group = | process_limit = 1 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener director-admin { | group = | mode = 0600 | user = | } | unix_listener login/director { | group = | mode = 00 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service dns_client { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = dns-client | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener dns-client { | group = | mode = 0666 | user = | } | unix_listener login/dns-client { | group = | mode = 0666 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service doveadm { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = doveadm-server | extra_groups = $default_internal_group | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = | service_count = 1 | type = | unix_listener doveadm-server { | group = | mode = 0600 | user = | } | user = | vsz_limit = 18446744073709551615 B | } | service health-check { | chroot = | client_limit = 1 | drop_priv_before_exec = yes | executable = script -p health-check.sh | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = | service_count = 0 | type = | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service imap-hibernate { | chroot = | client_limit = 0 | drop_priv_before_exec = no | executable = imap-hibernate | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = imap | service_count = 0 | type = | unix_listener imap-hibernate { | group = $default_internal_group | mode = 0660 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service imap-login { | chroot = login | client_limit = 0 | drop_priv_before_exec = no | executable = imap-login | extra_groups = | group = | idle_kill = 0 | inet_listener imap { | address = | haproxy = no | port = 143 | reuse_port = no | ssl = no | } | inet_listener imaps { | address = | haproxy = no | port = 993 | reuse_port = no | ssl = yes | } | privileged_group = | process_limit = 512 | process_min_avail = 3 | protocol = imap | service_count = 1 | type = login | user = $default_login_user | vsz_limit = 18446744073709551615 B | } | service imap-postlogin { | chroot = | client_limit = 0 | drop_priv_before_exec = no | executable = script-login /usr/local/sbin/dovecot-imap-post-login | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = | service_count = 0 | type = | user = | vsz_limit = 18446744073709551615 B | } | service imap-urlauth-login { | chroot = token-login | client_limit = 0 | drop_priv_before_exec = no | executable = imap-urlauth-login | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = imap | service_count = 1 | type = login | unix_listener imap-urlauth { | group = | mode = 0666 | user = | } | user = $default_login_user | vsz_limit = 18446744073709551615 B | } | service imap-urlauth-worker { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = imap-urlauth-worker | extra_groups = $default_internal_group | group = | idle_kill = 0 | privileged_group = | process_limit = 1024 | process_min_avail = 0 | protocol = imap | service_count = 1 | type = | unix_listener imap-urlauth-worker { | group = | mode = 0600 | user = $default_internal_user | } | user = | vsz_limit = 18446744073709551615 B | } | service imap-urlauth { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = imap-urlauth | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 1024 | process_min_avail = 0 | protocol = imap | service_count = 1 | type = | unix_listener token-login/imap-urlauth { | group = | mode = 0666 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service imap { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = imap | extra_groups = $default_internal_group | group = | idle_kill = 0 | privileged_group = | process_limit = 128 | process_min_avail = 0 | protocol = imap | service_count = 1 | type = | unix_listener imap-master { | group = | mode = 0600 | user = | } | unix_listener login/imap { | group = | mode = 0666 | user = | } | user = | vsz_limit = 18446744073709551615 B | } | service indexer-worker { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = indexer-worker | extra_groups = $default_internal_group | group = | idle_kill = 0 | privileged_group = | process_limit = 10 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener indexer-worker { | group = | mode = 0600 | user = $default_internal_user | } | user = | vsz_limit = 18446744073709551615 B | } | service indexer { | chroot = | client_limit = 0 | drop_priv_before_exec = no | executable = indexer | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 1 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener indexer { | group = | mode = 0666 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service ipc { | chroot = empty | client_limit = 0 | drop_priv_before_exec = no | executable = ipc | extra_groups = | group = | idle_kill = 0 | privileged_group = | process_limit = 1 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener ipc { | group = | mode = 0600 | user = $default_internal_user | } | unix_listener login/ipc-proxy { | group = | mode = 0600 | user = $default_login_user | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service lmtp { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = lmtp | extra_groups = $default_internal_group | group = | idle_kill = 0 | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = lmtp | service_count = 0 | type = | unix_listener lmtp { | group = | mode = 0666 | user = | } | user = | vsz_limit = 18446744073709551615 B | } | service log { | chroot = | client_limit = 0 | drop_priv_before_exec = no | executable = log | extra_groups = | group = | idle_kill = 4294967295 secs | privileged_group = | process_limit = 1 | process_min_avail = 0 | protocol = | service_count = 0 | type = log | unix_listener log-errors { | group = | mode = 0600 | user = | } | user = | vsz_limit = 18446744073709551615 B | } | service old-stats { | chroot = empty | client_limit = 0 | drop_priv_before_exec = no | executable = old-stats | extra_groups = | fifo_listener old-stats-mail { | group = | mode = 0600 | user = | } | fifo_listener old-stats-user { | group = | mode = 0600 | user = | } | group = | idle_kill = 4294967295 secs | privileged_group = | process_limit = 1 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener old-stats { | group = | mode = 0600 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service pop3-login { | chroot = login | client_limit = 0 | drop_priv_before_exec = no | executable = pop3-login | extra_groups = | group = | idle_kill = 0 | inet_listener pop3 { | address = | haproxy = no | port = 110 | reuse_port = no | ssl = no | } | inet_listener pop3s { | address = | haproxy = no | port = 995 | reuse_port = no | ssl = yes | } | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = pop3 | service_count = 1 | type = login | user = $default_login_user | vsz_limit = 18446744073709551615 B | } | service pop3 { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = pop3 | extra_groups = $default_internal_group | group = | idle_kill = 0 | privileged_group = | process_limit = 128 | process_min_avail = 0 | protocol = pop3 | service_count = 1 | type = | unix_listener login/pop3 { | group = | mode = 0666 | user = | } | user = | vsz_limit = 18446744073709551615 B | } | service replicator { | chroot = | client_limit = 0 | drop_priv_before_exec = no | executable = replicator | extra_groups = | group = | idle_kill = 4294967295 secs | privileged_group = | process_limit = 1 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener replicator-doveadm { | group = | mode = 00 | user = $default_internal_user | } | unix_listener replicator { | group = | mode = 0600 | user = $default_internal_user | } | user = | vsz_limit = 18446744073709551615 B | } | service stats { | chroot = | client_limit = 0 | drop_priv_before_exec = no | executable = stats | extra_groups = | group = | idle_kill = 4294967295 secs | privileged_group = | process_limit = 1 | process_min_avail = 0 | protocol = | service_count = 0 | type = | unix_listener stats-reader { | group = | mode = 0600 | user = | } | unix_listener stats-writer { | group = $default_internal_group | mode = 0660 | user = | } | user = $default_internal_user | vsz_limit = 18446744073709551615 B | } | service submission-login { | chroot = login | client_limit = 0 | drop_priv_before_exec = no | executable = submission-login | extra_groups = | group = | idle_kill = 0 | inet_listener submission { | address = | haproxy = no | port = 587 | reuse_port = no | ssl = no | } | privileged_group = | process_limit = 0 | process_min_avail = 0 | protocol = submission | service_count = 1 | type = login | user = $default_login_user | vsz_limit = 18446744073709551615 B | } | service submission { | chroot = | client_limit = 1 | drop_priv_before_exec = no | executable = submission | extra_groups = $default_internal_group | group = | idle_kill = 0 | privileged_group = | process_limit = 1024 | process_min_avail = 0 | protocol = submission | service_count = 1 | type = | unix_listener login/submission { | group = | mode = 0666 | user = | } | user = | vsz_limit = 18446744073709551615 B | } | shutdown_clients = yes | ssl = yes | ssl_alt_cert = | ssl_alt_key = | ssl_ca = | ssl_cert = </usr/local/etc/Certs/m28a.crt | ssl_cert_username_field = commonName | ssl_cipher_list = ALL:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH | ssl_client_ca_dir = | ssl_client_ca_file = | ssl_client_cert = | ssl_client_key = | ssl_client_require_valid_cert = yes | ssl_crypto_device = | ssl_curve_list = | ssl_dh = # hidden, use -P to show it | ssl_key = # hidden, use -P to show it | ssl_key_password = | ssl_min_protocol = TLSv1 | ssl_options = | ssl_prefer_server_ciphers = no | ssl_require_crl = yes | ssl_verify_client_cert = no | state_dir = /var/lib/dovecot | stats_writer_socket_path = stats-writer | submission_client_workarounds = | submission_host = | submission_logout_format = in=%i out=%o | submission_max_mail_size = 0 | submission_max_recipients = 0 | submission_relay_command_timeout = 5 mins | submission_relay_connect_timeout = 30 secs | submission_relay_host = | submission_relay_master_user = | submission_relay_max_idle_time = 29 mins | submission_relay_password = | submission_relay_port = 25 | submission_relay_rawlog_dir = | submission_relay_ssl = no | submission_relay_ssl_verify = yes | submission_relay_trusted = no | submission_relay_user = | submission_ssl = no | submission_timeout = 30 secs | syslog_facility = mail | userdb { | args = | auth_verbose = default | default_fields = | driver = passwd | name = | override_fields = | result_failure = continue | result_internalfail = continue | result_success = return-ok | skip = never | } | valid_chroot_dirs = | verbose_proctitle = yes | verbose_ssl = no | version_ignore = no | protocol lmtp { | mail_plugins = notify quota fts fts_squat acl | } | protocol lda { | mail_plugins = notify quota fts fts_squat acl | } | protocol imap { | imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags | imap_id_log = * | imap_logout_format = [%i/%o] | mail_max_userip_connections = 0 | mail_plugins = notify quota fts fts_squat acl quota imap_quota listescape fts fts_squat | } The config may be sub-optimal. Please concentrate on my quota problem. Stay healthy, Frank Elsner

1 0

Mail replication fails between v2.2.27 and v2.3.4.1
by Apostolis Hardalias 03 Jul '20

03 Jul '20

Hello, I have two installations of dovecot configured to replicate mailboxes between them. recently, i upgraded the operating system on one of them (mx2.example.com) and now i'm running one installation on version 2.2.27 (debian stretch) and another on version 2.3.4.1 (mx1.example.com debian buster). My setup includes 3 shared namespaces that point to the mailboxes of 3 accounts. these accounts are setup to use maildir format. After upgrading one of the hosts, i started having issues with failed replications on those mailboxes. I tried running the replication manually and repeatedly by issuing the following on mx1.example.com: doveadv -d sync -u exception_bucket(a)example.com -d -l 30 -n -u and the logs on mx2.example.com included the following lines consistently: Jul 02 14:21:58 dsync-server(exception_bucket(a)example.com): Debug: brain S: Change during sync: Mailbox GUID 2d32711ddfd27250390e0000a712b6e3 was lost Jul 02 14:21:58 dsync-server(exception_bucket(a)example.com): Debug: brain S: We don't have mailbox 2d32711ddfd27250390e0000a712b6e3 I double checked for the existance of the mailbox with that guid (that guid points to the inbox) and the mailbox existed on both servers but, the contents of the mailbox on the two servers where different (missing e-mails on both servers). I attempted running a force-resync command as follows but with no luck. doveadm -d force-resync -u exception_bucket(a)example.com inbox but the issue persisted. admittedly, i didn't run the command on both servers because i read it doesn't replicate after figuring a workaround. The next thing i tried was attempting replication without the -n flag, given that you mention that there are some issues replicating shared namespaces. That didn't fix the replication status either. After looking around, i came onto the solution on this thread: https://dovecot.org/pipermail/dovecot/2017-october/109620.html which proposed setting mailbox_list_index = no. This was the default setting on version 2.2.27, so i changed that setting on mx2.example.com which was running version 2.3.4.1. This allowed the replication to work but i don't think it is a setting i want in my configuration. Is there something i can do to re-enable dovecot to check index files instead of mailboxes? Could that be an issue when replicating between those two different versions? I'm attaching the configuration files for both the mailservers, a separate configuration file is included since mail_replica settings are set from there, and a link to the compressed log file i pulled during the operation. https://filebin.net/d9yygnq8jg74unwb/replication_debug.log.bz2?t=vv2o81ka Thank you in advance, Apostolis Hardalias

1 0

local stanza only generated for IPv6
by Jeremy Ardley 02 Jul '20

02 Jul '20

I have a mail server with multiple IP addresses and associated DNS names In the dovecot configuration I have a listen directive: listen = mail.example.com.com,mail.otherexample.com,localhost Multiple local stanzas are of the form: local mail.example.com { protocol imap { ssl_cert = </etc/letsencrypt/live/mail.example.com/fullchain.pem ssl_key = </etc/letsencrypt/live/mail.example.com/privkey.pem service imaps_login { inet_listener imaps { address=mail.example.com } inet_listener imap { address=mail.example.com } } } } mail.example.com has IPv4 and IPv6 addresses in DNS When I run doveconf -n the local configuration is only generated for the IPv6 address. I can test the operation on IPv6 using openSSL and see different server certificates on different IP addresses as expected. How do I force local generation for both IPv4 and IPv6 ?

3 4

dovecot: doveconf: Fatal: block_alloc(134217728): Out of memory
by Brent Clark 30 Jun '20

30 Jun '20

Good day Guys Currently on Debian Stretch (2.2.27). This morning we enabled SNI for our clients (file per domain). On going live with the new server configuration, we started getting the following on our shared hosting servers. Jun 30 07:25:04 REMOVED_HOSTNAME dovecot: doveconf: Fatal: block_alloc(134217728): Out of memory Jun 30 07:25:04 REMOVED_HOSTNAME dovecot: config: Fatal: block_alloc(134217728): Out of memory Jun 30 07:25:04 REMOVED_HOSTNAME dovecot: config: Fatal: master: service(config): child 64008 returned error 83 (Out of memory (service config { vsz_limit=512 MB }, you may need to increase it) - set CORE_OUTOFMEM=1 environment to get core dump) Jun 30 07:25:34 REMOVED_HOSTNAME dovecot: doveconf: Panic: data stack: Out of memory when allocating 2147483688 bytes Jun 30 07:25:37 REMOVED_HOSTNAME dovecot: config: Panic: data stack: Out of memory when allocating 2147483688 bytes This is a server with 2414 domains. On a few of our servers, to buy time, we had to set: default_vsz_limit =10096M A question I would like to ask is. Based on the following change notice, could the following be the problem. https://dovecot.org/pipermail/dovecot-news/2019-July/000412.html - config: Memory leak in config process when ssl_dh setting wasn't set and there was no ssl-parameters.dat file. This caused config process to die once in a while with "out of memory". If anyone could provide any assistance or share a tip on where we can look it would be appreciated. This one has my team and I stumped. Kind regards Brent Clark

1 0

POP3Deleted flag issues
by Justina Colmena ~biz 29 Jun '20

29 Jun '20

Hello, I have been running my own mail server with Dovecot, Postfix, and Cyrus-SASL for authentication. = dovecot22u.x86_64 1:2.2.36.4-1.el7.ius @ius I am basically trying to tune the system for better performance. The flat files "/var/mail/justina" etc exhibit locking issues and conflicts when fetching mail at the same time new mail is being delivered by Postfix. Other mail is stored in "Maildir" type folders accessible via IMAP. These exhibit better performance with finer grained locking. There's an "idea" that was posted to the list 7 years ago, shows up top rank on Google. https://dovecot.org/pipermail/dovecot/2013-May/090114.html I fear either an incomplete implementation of the feature or "here-be-dragons" code that may or may not be completely documented. I would like all the "$POP3Deleted" mail to be moved to an "Archive" Maildir folder accessible via IMAP. How do I accomplish this? -- Sent from my Android device with K-9 Mail. Please excuse my brevity.

1 0

layout:fs info
by Stefano Gatto - Fly2Net sas 29 Jun '20

29 Jun '20

Hi all, my dovecot version is 2.2.13, quite standard configuration. Can I add directive LAYOUT=fs in dovecot configuration without losing all my archived messages? This should modify the separator of email folders from dots to slashes, correct? BR Stefano

2 2

Plugin ABI compat between v2.3.8 and v2.3.9
by Alexander Strasser 24 Jun '20

24 Jun '20

Hi all! This is my first post on this list. Please pardon me if I overlooked or misunderstood some things. I had some imap crashes (sig11) starting at the end of 2019 after an upgrade of dovecot. I found out, that I didn't have any problems using version v2.3.8, but any version v2.3.9 and higher would trigger the crashes. After investigating more deeply and creating a core dump, I saw that the crash happened in an external plugin fetchmail_wakeup[1]. After recompiling that plugin with up to date dovecot headers, I didn't get crashes anymore. So I suspect there were ABI incompatible changes and it was forgotten to bump the minimum Plugin-ABI version supported. I could try to follow up some more details, but it would be quite a burden because of rebuilding the plugin with debug symbols against version 2.3.8 of dovecot and triggering the crash etc. Despite that I think it should be possible to detect changes that are ABI incompatible, as otherwise plugin users would always have to find out first hand with unknown consequences. That said there could be a possibility of the plugin using the API/ABI in an invalid way. If that was the cause, then the plugin should be changed. Hope this report turns out to help improve the situation. I don't have problems currently and will in future be sensitive to this specific possible cause of problems, but not having such crashes in the first place, would be worth it and maybe could still help others. Best regards, Alexander 1: slightly reduced version of: https://github.com/marschap/fetchmail_wakeup

2 4

Converting dot-namespaced Maildir to /-namespaced
by Guido Goluke, MajorLabel 24 Jun '20

24 Jun '20

I have a couple of domains on my server, all of them namespaced with a dot. It's 10-15 mailboxes at the most. Is there good way to convert them to / (slash) namespaced folders? Maybe some bash script lying around somewhere?

1 0

dovecot fts configuration without solr
by Danilo Tomasoni 24 Jun '20

24 Jun '20

Hello All, I always used dovecot and I'm pretty happy with it, but recently I changed OS (to ubuntu 18) and to get dovecot LTS with lucene (the default I was using on my previous arch installation) I needed to build from source the version 2.3.10 (the one that came with the repos was older and clucene was not actually supported) The problem is that the Clucene is not behaving well, It indexes only some mails but definitely not all according to my tests (there are also strange assertion errors in the logs) I also tried xapian fts index but is very slow indexing and definitely doesn't seem to work. The problem with solr fts is that solr doesn't even start on my tiny system (odroid C2 with 2GB RAM) and anyway I don't want to bloat all the system for the indexing if possible.. Anyone can suggest me a proper minimal and working configuration? Thank you Danilo

2 2

JMAP support
by Martynas Bendorius 23 Jun '20

23 Jun '20

Hello, Is there any ETA set for JMAP support? Thank you! >> On 11/27/2016 5:28 AM, Aki Tuomi <aki.tuomi at dovecot.fi> wrote: >> Hi! >> We are working on including JMAP support to Dovecot. At this moment I cannot give any promise for exact version, but hopefully it will be part of v2.3 >> >> Aki Tuomi >> Dovecot Oy -- Best regards, Martynas Bendorius

3 2

Apple mail works but thunderbird unable to connect
by Dshah 23 Jun '20

23 Jun '20

Dear all, I am stuck on this issue for days, I am able to connect on my IMAP server using Apple mail client but thunderbird shows me this error: "improper command pipelining after EHLO" I have tried all the ports in manual config but it just is not working while Apple Mail is able to connect perfectly, here are my configuration details of "postconf -n" , "doveconf -n" and " master.cf" https://pastebin.com/M3XG9DXA Thanks in advance.

6 12

problem with warnings
by Maciej Milaszewski 23 Jun '20

23 Jun '20

Hi I have a problem with warrnings in log Yesterday "big gays" change datastore and After this time i get warrnings in dovecot like: Warning: Created dotlock file's timestamp is different than current time (1592878268 vs 1592871191): /vmail/us/username/Maildir/dovecot-uidlist Before that there was no problem with warnnings I have dovecot director with 5 dovecot-nodes and storage always was mounted via nfs /vmail on /vmail type nfs (rw,noexec,noatime,vers=3,rsize=65536,wsize=65536,namlen=255,acregmin=120,acregmax=120,acdirmin=120,acdirmax=120,hard,nocto,nordirplus,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=10.0.100.41,mountvers=3,mountport=635,mountproto=tcp,local_lock=none,addr=xxx.xxx.xxx.xxx) # 2.2.36.4 (baf9232c1): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.24.rc1 (debaa297) # OS: Linux 3.16.0-10-amd64 x86_64 Debian 8.11

1 0

from field encoding
by Jan Jurko 23 Jun '20

23 Jun '20

Good day. I have a dovecot 2.3.4.1 on debian 10 as an imap server. I found there are emails where the header field From has no encoding even if there is a name with special characters like Žlutý Kůň. The header looks like: From: "Žlutý Kůň" <zluty.kun(a)domain.tld> In this case the email client - roundcube, outlook etc. will show the From with wrong characters. This behaviour is typical only for dovecot, not for courier-imap - it was installed before dovecot with no problems. If there is corretly encoded From filed, the client shows the From correctly. Is there a way to set up the dovecot to show the field correctly even without encoding stuff? Some default/fallback settings? Thank you very much for your help Jan Jurko

2 3

nodelay passdb extra field does not work?
by Joe Wong 23 Jun '20

23 Jun '20

Hello, I have added 'y' as nodelay in my passdb query and I see the following in log: dovecot: imap-login: Debug: Ignoring unknown passdb extra field: nodelay does it mean this option is no longer supported in 2.3.10 ? - Joe

2 4

AW: replicator: Panic: data stack: Out of memory
by Thomas Tsiakalakis 23 Jun '20

23 Jun '20

I managed to convince the System that I really want a core dump Thomas Tsiakalakis Team Applikationsbetrieb GDV Dienstleistungs-GmbH Tel: +49(40)33449-4318 Fax: E-Mail: Thomas.Tsiakalakis(a)gdv-dl.de<mailto:Thomas.Tsiakalakis@gdv-dl.de> GDV Dienstleistungs-GmbH Glockengießerwall 1 D-20095 Hamburg www.gdv-dl.de<http://www.gdv-dl.de> Niederlassungen: Wilhelmstraße 43 / 43 G 10117 Berlin Frankenstraße 18 20097 Hamburg Sitz und Registergericht: Hamburg HRB 145291 USt.-IdNr : DE 205183123 Geschäftsführer: Dr. Jens Bartenwerfer Fred di Giuseppe Chiachiarella Aufsichtsratsvorsitzender: Werner Schmidt ------------------------------------------------------------------ Diese E-Mail und alle Anhänge enthalten vertrauliche und/oder rechtlich geschützte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe der E-Mail ist nicht gestattet. This e-mail and any attached files may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden. Von: Thomas Tsiakalakis Gesendet: Donnerstag, 18. Juni 2020 16:26 An: 'dovecot(a)dovecot.org' <dovecot(a)dovecot.org> Betreff: replicator: Panic: data stack: Out of memory Hi, I have set up 2 SLES 15 Hosts with dovecot and replication. Everything seems to work fine but every time a message is delivered, I get an out of memory error in the logs. The Replication itself seems to work fine though. I increased default_vsz_limit to 512M but the only thing that changed was that dovecot was trying to allocate 1073741864 bytes instead of 268435496 As I said, I’m running SLES 15 SP1 and Dovecot 2.3.10 (0da0eff44) (both Hosts have the same version) Each Host currently has 8GB of Memory. # free -h total used free shared buff/cache available Mem: 7.8Gi 278Mi 7.3Gi 47Mi 183Mi 7.2Gi Swap: 4.0Gi 0B 4.0Gi # journalctl -f Jun 18 15:55:48 mail1 postfix/pickup[3457]: 18533C009C8: uid=0 from=<root> Jun 18 15:55:48 mail1 postfix/cleanup[3669]: 18533C009C8: message-id=<20200618135548.18533C009C8@mail1> Jun 18 15:55:48 mail1 postfix/qmgr[3458]: 18533C009C8: from=<root@mail1>, size=431, nrcpt=1 (queue active) Jun 18 15:55:48 mail1 dovecot[1833]: lmtp(3673): Connect from local Jun 18 15:55:48 mail1 dovecot[1833]: replicator: Panic: data stack: Out of memory when allocating 268435496 bytes Jun 18 15:55:48 mail1 dovecot[1833]: replicator: Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7f8346d6d262] -> /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f8346d6d37e] -> /usr/lib64/dovecot/libdovecot.so.0(+0xebcee) [0x7f8346d77cee] -> /usr/lib64/dovecot/libdovecot.so.0(+0xebd91) [0x7f8346d77d91] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f8346cd1f8b] -> /usr/lib64/dovecot/libdovecot.so.0(t_pop_last_unsafe+0) [0x7f8346d73660] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe7a50) [0x7f8346d73a50] -> /usr/lib64/dovecot/libdovecot.so.0(+0x10eb58) [0x7f8346d9ab58] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe3ac5) [0x7f8346d6fac5] -> /usr/lib64/dovecot/libdovecot.so.0(buffer_write+0xf2) [0x7f8346d6fdb2] -> dovecot/replicator(replicator_queue_push+0xde) [0x5648989a5cde] -> dovecot/replicator(+0x5464) [0x5648989a5464] -> dovecot/replicator(+0x4a0b) [0x5648989a4a0b] -> dovecot/replicator(+0x4c02) [0x5648989a4c02] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f8346d90c99] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x134) [0x7f8346d92574] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x4c) [0x7f8346d90d9c] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f8346d90fc8] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f8346d01873] -> dovecot/replicator(main+0x1a0) [0x5648989a3cb0] -> /lib64/libc.so.6(__libc_start_main+0xea) [0x7f83468f534a] -> dovecot/replicator(_start+0x2a) [0x5648989a3d5a] Jun 18 15:55:48 mail1 dovecot[1833]: lmtp(test(a)example.com)<3673><q5sLCGRy615ZDgAATn/NZw>: Warning: replication(test(a)example.com): Sync failure: Jun 18 15:55:48 mail1 dovecot[1833]: lmtp(test(a)example.com)<3673><q5sLCGRy615ZDgAATn/NZw>: Warning: replication(test(a)example.com): Remote sent invalid input: - Jun 18 15:55:48 mail1 dovecot[1833]: lmtp(test(a)example.com)<3673><q5sLCGRy615ZDgAATn/NZw>: msgid=<20200618135548.18533C009C8@mail1>: saved mail to INBOX Jun 18 15:55:48 mail1 dovecot[1833]: lmtp(3673): Disconnect from local: Client has quit the connection (state=READY) Jun 18 15:55:48 mail1 postfix/lmtp[3672]: 18533C009C8: to=<test(a)example.com>, orig_to=<test(a)domain.com>, relay=mail1[private/dovecot-lmtp], delay=0.17, delays=0.02/0.01/0.02/0.13, dsn=2.0.0, status=sent (250 2.0.0 <test(a)example.com> q5sLCGRy615ZDgAATn/NZw Saved) Jun 18 15:55:48 mail1 postfix/qmgr[3458]: 18533C009C8: removed Jun 18 15:55:48 mail1 dovecot[1833]: replicator: Fatal: master: service(replicator): child 2948 killed with signal 6 (core not dumped - https://dovecot.org/bugreport.html#coredumps - set /proc/sys/fs/suid_dumpable to 2)

1 0

Updating wiki content
by Dan 22 Jun '20

22 Jun '20

Greetings, I'd like to contribute to the Dovecot wiki in regards to clients that lack the ability to support SNI. However the captcha doesn't make sense, I get a question "What do you do to prevent spam?". This is a loaded question which I'm uncertain what the answer should be. Thanks.

2 1

Bug[?]report: duplicate response
by Johannes Schilling 21 Jun '20

21 Jun '20

hi, i'm not sure if i've discovered a bug or if i'm not following the IMAP specs correctly. observations: { echo -en "a1 login foo bar\r\na2 notify set (subscribed (FlagChange SubscriptionChange MessageNew MessageExpunge))\r\n"; cat - } | openssl s_client -connect [my_dovecot_server]:993 produces the following output (aside from the openssl s_client cert-inspection stuff): 2020-06-21 12:26:02 * OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ AUTH=PLAIN AUTH=LOGIN] Dovecot (Debian) ready. 2020-06-21 12:26:02 a1 OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE SNIPPET=FUZZY LITERAL+ NOTIFY SPECIAL-USE] Logged in 2020-06-21 12:26:02 a2 OK NOTIFY completed (0.005 + 0.000 + 0.004 secs). 2020-06-21 12:26:02 a2 OK NOTIFY completed (0.002 + 0.000 + 0.001 secs). the first line is the pre-login welcome prompt, the second one the result of the "a1 login .." command and the third and fourth seem to be the answer to the "a2 notify set .." command, twice. from the different timings given, it seems the a2 command is actually executed twice. is this a case of "you're not allowed to pipeline commands like this" or a bug in dovecot (or both)? i attached the output of `dovecot -n`. best, dario

1 0

Mailfiles gets duplicated
by Jacques Schreiber 19 Jun '20

19 Jun '20

Hello, With my configuration Dovecot creates multiple duplicates (sometimes 2, sometimes 3, sometimes a plenty) of mailfiles when moving them into the Sent or the Trash folders. This does not affect the Inbox folder. I observed this while using Thunderbird on Ubuntu as a client as well as K9-Mail on Android, therefore I expect this comes from the Dovecot server and not from the client itself. It also appears that the duplicates does not have the size S= and vsize W= flags. Here is a short example of the last emails from my folder /.Sent/cur: -rw------- 1 pi pi 1,6M mars 24 22:18 1585084691.M834293P16489.raspberry-pi,S=1658182,W=1679758:2,S -rwx------ 1 pi pi 34M mars 24 22:20 1585084841.M415421P17104Q0Rc311b18de2edf536.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 22:22 1585084954.M254398P17175Q0R6c5a66e22ac3a3d2.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 22:46 1585086411.M317404P18117Q0R61ba34fb281e8eb5.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 22:51 1585086659.M435086P18251Q0R7e118d3bd7784c6d.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 22:53 1585086799.M821376P18319Q0R6b838db7f14a2302.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 22:54 1585086861.M788796P18398Q0Raaa98233db1f9b6a.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:00 1585087244.M616219P18629Q0R4d5856ac0d1b1337.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:01 1585087278.M581756P18651Q0R6a75f871d9e8f0aa.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:01 1585087296.M954701P18666Q0R0cce469807cb0aa8.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:05 1585087552.M557221P18793Q0R541dece72da12039.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:09 1585087759.M768686P18927Q0Rbc1c813e1b124702.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:10 1585087823.M232119P19026Q0R4086d52491835470.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:10 1585087855.M951407P19035Q0R4edd76369b804f54.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:22 1585088561.M364587P19476Q0Rdc0ac3a664f1a80f.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:24 1585088639.M90555P19512Q0R6214b0e915c88908.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:27 1585088859.M192671P19663Q0Re4562fb440f7a4be.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:28 1585088927.M926251P19699Q0Rbe7523140efc06e2.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:29 1585088962.M120826P19721Q0Rd66b5d585c41123b.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:31 1585089111.M427988P19799Q0R5b8e8a032adc33c8.raspberry-pi:2, -rwx------ 1 pi pi 1,6M mars 24 23:32 1585089138.M910049P19827Q1R1b4d834fadfb0fd6.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:33 1585089180.M811880P19839Q0R8c415b8fbf638018.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:34 1585089252.M333476P19878Q0R3b809c0f458a90e0.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:34 1585089293.M103544P19918Q0Rd9acc8d53f5c8b32.raspberry-pi:2, -rwx------ 1 pi pi 34M mars 24 23:35 1585089314.M270143P19948Q0R1202a6fe81862880.raspberry-pi:2, -rw------- 1 pi pi 2,0M mars 29 13:01 1585479708.M437415P11486.raspberry-pi,S=2076767,W=2105374:2,S -rwx------ 1 pi pi 2,0M mars 29 13:02 1585479733.M94224P13150Q0R974361f29d7d9cdb.raspberry-pi:2, -rw------- 1 pi pi 2,5K mars 31 09:10 1585638623.M921769P12803.raspberry-pi,S=2511,W=2585:2,S -rwx------ 1 pi pi 3,0K mars 31 09:11 1585638671.M552885P12861Q0R878fb6aa8485b5c0.raspberry-pi:2, -rw------- 1 pi pi 19M avril 3 09:38 1585899475.M669440P24679.raspberry-pi,S=19757959,W=20028662:2,S -rwx------ 1 pi pi 19M avril 3 09:38 1585899531.M744009P25082Q0R0b61c7e8e7b723b4.raspberry-pi:2, -rw------- 1 pi pi 421 avril 3 14:52 1585918350.M591326P1027.raspberry-pi,S=421,W=434:2,S -rw------- 1 pi pi 421 avril 3 14:52 1585918360.M206900P1027.raspberry-pi,S=421,W=434:2,S -rw------- 1 pi pi 421 avril 3 14:52 1585918372.M255849P1032.raspberry-pi,S=421,W=434:2,S -rwx------ 1 pi pi 1,1K avril 3 14:53 1585918394.M224204P1071Q0R7e9bc28b2d8e7fc4.raspberry-pi:2, -rwx------ 1 pi pi 1,1K avril 3 14:53 1585918395.M884727P1073Q1Ra4a111c1e0f5a399.raspberry-pi:2, -rwx------ 1 pi pi 1,1K avril 3 14:53 1585918398.M36019P1077Q2R10960cdc588b3ede.raspberry-pi:2, Below are details about my configuration pi@raspberry-pi:~$ sudo uname --all Linux raspberry-pi 4.4.38+ #938 Thu Dec 15 15:17:54 GMT 2016 armv6l GNU/Linux pi@raspberry-pi:~$ mount [...] /dev/sda1 on /home/pi type ext4 (rw,noatime,nodiratime,data=ordered) [...] pi@raspberry-pi:/var/log$ sudo dovecot --version 2.2.13 pi@raspberry-pi:/var/log$ sudo dovecot -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 4.4.38+ armv6l Debian 8.0 ext4 disable_plaintext_auth = no mail_location = maildir:/home/pi/Mails/%u namespace { inbox = yes location = mailbox { auto = subscribe special_use = \Drafts name = Drafts } mailbox { special_use = \Junk name = Junk } mailbox { auto = subscribe special_use = \Sent name = Sent } mailbox { special_use = \Sent name = Sent Messages } mailbox { auto = subscribe special_use = \Trash name = Trash } prefix = separator = / type = private name = inbox } passdb { driver = pam } passdb { args = /home/pi/Mails/dovecot_passwords driver = passwd-file } protocols = " imap" service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service { inet_listener { address = * port = 4143 name = imap } name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service login/imap { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } ssl_cert = </home/pi/Mails/imap_ssl_certificate.crt ssl_key = </home/pi/Mails/imap_ssl_private.key userdb { driver = passwd } userdb { args = uid=1000 gid=1000 home=/var/mail/%u driver = static } protocol lmtp { service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap { name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service login/imap { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } } protocol lda { service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap { name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service login/imap { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } } protocol imap { service replication-notify-fifo { name = aggregator } service anvil-auth-penalty { name = anvil } service auth-worker { name = auth-worker } service auth-client { name = auth } service config { name = config } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap { name = imap-login } service imap-urlauth { name = imap-urlauth-login } service imap-urlauth-worker { name = imap-urlauth-worker } service token-login/imap-urlauth { name = imap-urlauth } service login/imap { name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service lmtp { name = lmtp } service log-errors { name = log } service pop3 { name = pop3-login } service login/pop3 { name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } }

1 1

replicator: Panic: data stack: Out of memory
by Thomas Tsiakalakis 18 Jun '20

18 Jun '20

Hi, I have set up 2 SLES 15 Hosts with dovecot and replication. Everything seems to work fine but every time a message is delivered, I get an out of memory error in the logs. The Replication itself seems to work fine though. I increased default_vsz_limit to 512M but the only thing that changed was that dovecot was trying to allocate 1073741864 bytes instead of 268435496 As I said, I’m running SLES 15 SP1 and Dovecot 2.3.10 (0da0eff44) (both Hosts have the same version) Each Host currently has 8GB of Memory. # free -h total used free shared buff/cache available Mem: 7.8Gi 278Mi 7.3Gi 47Mi 183Mi 7.2Gi Swap: 4.0Gi 0B 4.0Gi # journalctl -f Jun 18 15:55:48 mail1 postfix/pickup[3457]: 18533C009C8: uid=0 from=<root> Jun 18 15:55:48 mail1 postfix/cleanup[3669]: 18533C009C8: message-id=<20200618135548.18533C009C8@mail1> Jun 18 15:55:48 mail1 postfix/qmgr[3458]: 18533C009C8: from=<root@mail1>, size=431, nrcpt=1 (queue active) Jun 18 15:55:48 mail1 dovecot[1833]: lmtp(3673): Connect from local Jun 18 15:55:48 mail1 dovecot[1833]: replicator: Panic: data stack: Out of memory when allocating 268435496 bytes Jun 18 15:55:48 mail1 dovecot[1833]: replicator: Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7f8346d6d262] -> /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f8346d6d37e] -> /usr/lib64/dovecot/libdovecot.so.0(+0xebcee) [0x7f8346d77cee] -> /usr/lib64/dovecot/libdovecot.so.0(+0xebd91) [0x7f8346d77d91] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f8346cd1f8b] -> /usr/lib64/dovecot/libdovecot.so.0(t_pop_last_unsafe+0) [0x7f8346d73660] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe7a50) [0x7f8346d73a50] -> /usr/lib64/dovecot/libdovecot.so.0(+0x10eb58) [0x7f8346d9ab58] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe3ac5) [0x7f8346d6fac5] -> /usr/lib64/dovecot/libdovecot.so.0(buffer_write+0xf2) [0x7f8346d6fdb2] -> dovecot/replicator(replicator_queue_push+0xde) [0x5648989a5cde] -> dovecot/replicator(+0x5464) [0x5648989a5464] -> dovecot/replicator(+0x4a0b) [0x5648989a4a0b] -> dovecot/replicator(+0x4c02) [0x5648989a4c02] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f8346d90c99] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x134) [0x7f8346d92574] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x4c) [0x7f8346d90d9c] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f8346d90fc8] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f8346d01873] -> dovecot/replicator(main+0x1a0) [0x5648989a3cb0] -> /lib64/libc.so.6(__libc_start_main+0xea) [0x7f83468f534a] -> dovecot/replicator(_start+0x2a) [0x5648989a3d5a] Jun 18 15:55:48 mail1 dovecot[1833]: lmtp(test(a)example.com)<3673><q5sLCGRy615ZDgAATn/NZw>: Warning: replication(test(a)example.com): Sync failure: Jun 18 15:55:48 mail1 dovecot[1833]: lmtp(test(a)example.com)<3673><q5sLCGRy615ZDgAATn/NZw>: Warning: replication(test(a)example.com): Remote sent invalid input: - Jun 18 15:55:48 mail1 dovecot[1833]: lmtp(test(a)example.com)<3673><q5sLCGRy615ZDgAATn/NZw>: msgid=<20200618135548.18533C009C8@mail1>: saved mail to INBOX Jun 18 15:55:48 mail1 dovecot[1833]: lmtp(3673): Disconnect from local: Client has quit the connection (state=READY) Jun 18 15:55:48 mail1 postfix/lmtp[3672]: 18533C009C8: to=<test(a)example.com>, orig_to=<test(a)domain.com>, relay=mail1[private/dovecot-lmtp], delay=0.17, delays=0.02/0.01/0.02/0.13, dsn=2.0.0, status=sent (250 2.0.0 <test(a)example.com> q5sLCGRy615ZDgAATn/NZw Saved) Jun 18 15:55:48 mail1 postfix/qmgr[3458]: 18533C009C8: removed Jun 18 15:55:48 mail1 dovecot[1833]: replicator: Fatal: master: service(replicator): child 2948 killed with signal 6 (core not dumped - https://dovecot.org/bugreport.html#coredumps - set /proc/sys/fs/suid_dumpable to 2) Thomas Tsiakalakis Team Applikationsbetrieb GDV Dienstleistungs-GmbH Tel: +49(40)33449-4318 Fax: E-Mail: Thomas.Tsiakalakis(a)gdv-dl.de<mailto:Thomas.Tsiakalakis@gdv-dl.de> GDV Dienstleistungs-GmbH Glockengießerwall 1 D-20095 Hamburg www.gdv-dl.de<http://www.gdv-dl.de> Niederlassungen: Wilhelmstraße 43 / 43 G 10117 Berlin Frankenstraße 18 20097 Hamburg Sitz und Registergericht: Hamburg HRB 145291 USt.-IdNr : DE 205183123 Geschäftsführer: Dr. Jens Bartenwerfer Fred di Giuseppe Chiachiarella Aufsichtsratsvorsitzender: Werner Schmidt ------------------------------------------------------------------ Diese E-Mail und alle Anhänge enthalten vertrauliche und/oder rechtlich geschützte Informationen. 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1 0

Sieve-scripts won't replicate
by Niels Kobschätzki 18 Jun '20

18 Jun '20

Hi, I am trying to use dovecot replication for a two-way sync. And whatever I do, sieve-scripts won’t replicate. Mails replicate near instantaneous. When I disable the sieve-script in roundcube, the other server will create in the home of the user on the other side a folder sieve/tmp but enabling won’t create the roundcube.sieve and the symlink .dovecot.sieve -> sieve/roundcube.sieve The home of a virtual mail user on server1 looks like this: drwx------ 4 vexim vexim 4096 Jun 18 08:02 . drwx------ 8 vexim vexim 4096 Jun 18 07:59 .. lrwxrwxrwx 1 vexim vexim 21 Jun 18 07:59 .dovecot.sieve -> sieve/roundcube.sieve drwx------ 5 vexim vexim 4096 Jun 18 08:14 Maildir drwx------ 3 vexim vexim 4096 Jun 18 08:02 sieve A ps auxwww|grep dove looks like this (maybe some user is wrong?): ps auxwww |grep dove root 847 0.0 0.0 4200 3044 ? Ss 07:54 0:00 /usr/sbin/dovecot -F root 849 0.0 0.0 4060 2544 ? S 07:54 0:00 dovecot-team1/replicator dovecot 850 0.0 0.0 3912 1092 ? S 07:54 0:00 dovecot-team1/anvil root 851 0.0 0.0 4048 2464 ? S 07:54 0:00 dovecot-team1/log dovecot 852 0.0 0.0 4048 2692 ? S 07:54 0:00 dovecot-team1/stats root 853 0.0 0.0 6072 4368 ? S 07:54 0:00 dovecot-team1/config dovecot 855 0.0 0.0 17412 6620 ? S 07:54 0:00 dovecot-team1/auth dovenull 856 0.0 0.0 8200 6344 ? S 07:54 0:00 dovecot-team1/imap-login vexim 858 0.0 0.0 7092 5300 ? S 07:54 0:00 dovecot-team1/imap dovecot 902 0.0 0.0 3912 1096 ? S 07:55 0:00 dovecot-team1/aggregator dovenull 1929 0.0 0.0 8200 6256 ? S 08:15 0:00 dovecot-team1/imap-login vexim 1930 0.0 0.0 6984 5284 ? S 08:15 0:00 dovecot-team1/imap dovenull 1931 0.0 0.0 8200 6248 ? S 08:15 0:00 dovecot-team1/imap-login vexim 1932 0.0 0.0 6964 5140 ? S 08:15 0:00 dovecot-team1/imap root 2210 0.0 0.0 6048 892 pts/0 S+ 08:21 0:00 grep dove I do not see any errors in the log. Here is the doveconf -n output. The partner looks identical except the replication target. # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-9-amd64 x86_64 Debian 10.4 # Hostname: team.snafu.de auth_mechanisms = plain login auth_verbose = yes doveadm_password = # hidden, use -P to show it doveadm_port = 12345 instance_name = team1 mail_location = maildir:~/mail:INBOX=/var/vmail/%d/%u mail_plugins = " notify replication" mail_privileged_group = mail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext spamtest spamtestplus virustest editheader servermetadata imapflags notify imapsieve vnd.dovecot.imapsieve namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { imapsieve_mailbox1_before = file:/usr/lib/dovecot/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Junk imapsieve_mailbox2_before = file:/usr/lib/dovecot/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Junk imapsieve_mailbox2_name = * mail_replica = tcps:server2.domain.de:12345 sieve = file:~/sieve;active=~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags +editheader +regex +spamtest +spamtestplus +virustest +servermetadata sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment sieve_pipe_bin_dir = /usr/lib/dovecot/sieve-pipe sieve_plugins = sieve_imapsieve sieve_extprograms } protocols = " imap lmtp sieve sieve" replication_dsync_parameters = -D -d -N -l 30 -U service aggregator { fifo_listener replication-notify-fifo { mode = 0666 user = vexim } unix_listener replication-notify { mode = 0666 user = vexim } } service auth { unix_listener auth-client { group = vexim mode = 0660 user = Debian-exim } unix_listener auth-userdb { group = vexim mode = 0666 user = vexim } } service config { unix_listener config { user = vexim } } service doveadm { inet_listener { port = 12345 ssl = yes } user = vexim } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 0 service_count = 1 vsz_limit = 64 M } service managesieve { process_limit = 1024 } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl = required ssl_cert = </etc/ssl/certs/wildcard.domain.de.pem ssl_cipher_list = HIGH:!aNULL ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_prefer_server_ciphers = yes userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = " notify replication sieve" } protocol imap { mail_plugins = " notify replication imap_sieve" } protocol lmtp { info_log_path = /var/log/dovecot-lmtp.log mail_plugins = " notify replication sieve" } protocol sieve { mail_max_userip_connections = 10 managesieve_max_line_length = 65536 } Any help appreciated. Niels

1 1

Password mismatch after upgrade to Ubuntu Focal
by Jeffrey van Doesburg 16 Jun '20

16 Jun '20

Hi! Today I upgraded one of our Dovecot servers from Ubuntu 18.04 to Ubuntu 20.04. After the upgrade I have login issues because the password didn't match. I also installed Dovecot on a clean Ubuntu 20.04 server with the same configuration files. And here I also got the password match issue. We're using LDAP for managing the login credentials and I'm 100% sure the password is correct. With the debug options on, you will see something like this: CRYPT(<PLAIN_TEXT_PASSWORD>) != '$6$<SECRET_PASSWORD_HASH>' Does somebody know if there are know issues with Dovecot 2.3.7.2- 1ubuntu3.1 on Ubuntu 20.04 and with the LDAP driver? dovecot -n ------------------------- # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.7.2 () # OS: Linux 5.4.0-33-generic x86_64 Ubuntu 20.04 LTS ceph # Hostname: server.example.tld auth_verbose = yes disable_plaintext_auth = no listen = *, [::] log_timestamp = "%Y-%m-%d %H:%M:%S " login_greeting = POP/IMAP Service ready. mail_fsync = always mail_location = maildir:/mail/%u mail_privileged_group = mail passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } plugin { acl = vfile:/etc/dovecot/acls/:cache_secs=30 autosubscribe = Trash autosubscribe2 = Sent autosubscribe3 = Drafts } protocols = imap pop3 service auth { user = root } service imap-create-folder { executable = script-login /usr/local/sbin/dovecot-create-dirs.sh } service imap-login { process_min_avail = 15 service_count = 0 } service imap { executable = imap imap-create-folder } service pop3-login { process_min_avail = 15 service_count = 0 } service pop3 { drop_priv_before_exec = yes } ssl = no userdb { driver = prefetch } protocol imap { mail_max_userip_connections = 25 mail_plugins = acl } protocol pop3 { pop3_uidl_format = %f } ------------------------------ /etc/dovecot/dovecot-ldap.conf ------------------------------ hosts = ldap.server.example.tld dn = <XXXXX> dnpass = <XXXXX> auth_bind = no ldap_version = 3 base = <XXXXX> pass_attrs = <XXXXX> pass_filter = <XXXXX> ----------------- Thanks! Jeffrey

2 5

Send SPF SoftFails to Junk
by Scott A. Wozny 14 Jun '20

14 Jun '20

Hello Dovecot gurus, I've set up SPF checking on my postfix gateway and have confirmed that messages from domains set with hard fails that don't come from a good sender are rejected outright. Messages from domains set with a softfail that come from bad sources are tagged in the message header with "Softfail (domain owner discourages use of this host)", but end up in the user's Inbox, anyway. I suppose I kind of figured DoceCot would see the SPF softfail in the message header and automagically route that message to Junk, but it didn't. I've looked around Google and the Dovecot documentation to see if there are any instructions on how to do this, but I can't find anything. Is there an easy way to do this or do I need something more advanced in the way of a spam filtering system? OR is doing this my mail client's responsibility and I need to look around my Thunderbird settings? I suppose it's also possible that Postfix needed to do something beyond adding the Received-SPF line in the message header, but I didn't see anything about that in the Policy-SPF config. This is my first foray into SPF so I'm open to any suggestions. Thanks, Scott

2 2

Login auth strip domain from username
by David Pottage 14 Jun '20

14 Jun '20

Hi, I have just discovered that the IMAP account setup wizard in outlook 2019 assumes that the email address for a user is the same as their username, and there is no easy way to separately enter different user. (It can be done via hidden dialog boxes, command line switches and registry hacking, but it is far from easy [1]) Like many small setups, the dovecot accounts on my mail server map directly to unix accounts on the machine, and the IMAP password for each account is the same as the unix login password. I have now got outlook sorted and talking to my IMAP server, but seeing as this issue will almost certainly arise again, with out over-simplified MUA software, is there a setting in dovecot that if it is given an email address as a login username it strips off the domain part, and tests the user part against the password supplied? If you know how to do that for postfix for sending email, then even better! [1] https://superuser.com/questions/1391960/how-to-enter-username-of-imap-accou… -- David Pottage

4 3

handling spam from gmail.
by Marc Roos 12 Jun '20

12 Jun '20

I am sick of this gmail spam. Does anyone know a solution where I can do something like this: 1. received email from adcpni444(a)gmail.com 2. system recognizes this email address has been 'whitelisted', continue with 7. 3. system recognizes as this email never been seen before 4. auto reply with something like (maybe with a wait time of x hours): Your message did not receive the final recipient. You are sending from a known spam provider network that is why we blocked your message. Please confirm that: - you are not a spammer and - you have permission to use the mail adress you send your message to - you and your provider agree to uphold GDPR legislation - you and your provider are liable for damages when breaching any of the above. Click link to confirm and you agree with the above https://www.domainwithoutletsencryptcertificate.com/asdfasdfadsfaf 5. sender clicks confirm url 6. email address is added to some white list. 7. email is delivered to recipient.

16 27

Read-flag of mails don't update
by Marius Rasch 12 Jun '20

12 Jun '20

Hi, since one or two month I have a problem with Dovecot not updating the read-flag on mails using IMAP. I receive new mails, but when reading, they still unread on other devices (but shown as read on the first device). When I remember correct, this problem doesn't come with an update of dovecot, but just occured at some time. But I've updated dovecot since then a few times. Whenever a client connects to dovecot I get an panic in the log. I therefore added a log file and my dovecot configuration (is this fine or does it need to be in the mail body?). There are system information in the output of dovecot -n; the filesystem dovecot is running on is ext4. I hope I provided all information needed and seeing forward to get a hint what the problem might be. Marius

3 7

executing script on mail arrival from sieve
by Voytek Eymont 12 Jun '20

12 Jun '20

I currently have a basic script to process some mails, it runs from cron every 10 minutes, basically, sieve copies some mails to subfolder on mail arrival, script fetches mails if any from this subfolder then processes these mail, get maybe 1 or 2 or often none but cron runs the script every 10 minutes, most times not needed as nothing is retrieved it's pretty crude - but works getmail fetches mails to local folder, deletes in subfolder munpack mailfile to unMIME links dumps HTML to txt looking at wiki2, 'Pigeonhole Sieve Extprograms Plugin', is this what would allow to execute my script on new mail arrival? I can't quite figure out how to.. if anyone has any sample, I might try to adapt to my need.. thanks (probably I should just leave like it is till I understand the docs...) thanks, V

2 2

Doveadm Backup (other) issues
by Gingko 11 Jun '20

11 Jun '20

Hello, I also have issues using Dovecot Backup. I am trying to Backup (or possibly Sync - one way) a single user IMAP account from a remote server, unknown type, to my own server. For that purpose, I defined the following parameters : imapc_host = <host name> imapc_user = <user name> imapc_password = <password> imapc_features = rfc822.size (<user name> has format: name(a)example.com, and <host name> is the name of the imap remote server that I use for getting mails) … and then I issued the following command: doveadm backup -R -u <user name, format name(a)example.com> imapc: ... but doing this, I get the following answer: dsync(<user name>): Info: imapc(<host name>:143): Connected to <host IP address>:143 (local 192.168.1.2:52940) dsync(<user name>): Error: Failed to initialize user: namespace configuration error: Namespace mail/ can't have alias_for= to a different storage (different root dirs) How can I solve this? If there is something not matching between servers, I may eventually change configuration on my side, but I think I would first have to know which feature(s) I have to know from the remote server in order to create the matching one on my server. Is there a way to list all relevant data coming from the remote server? Also: Doing this, is it necessary that the source user name be the same as the destination user name? Is it possible to backup an IMAP account to a user account having a completely different name? Regards, Gingko

5 7

Dovecot /VMWare Boxer
by Djule Djukic 11 Jun '20

11 Jun '20

Hello all, My name is Djule Djukic and I am working for Hipotekarna Banka from Montenegro. We are using IMAP email server Dovecot version 2.1.17. As a email clients on our corporate workstations we are using Thunderbird or WebMail and everything is working fine. We decided to introduce MDM solution in our environment and we installed VMWare WorkspaceOne (former Airwatch) which use Boxer as a mail client in App per VPN scenario. When we syncronise email with Boxer we have found that the time and date displayed for some messages have been changed to the time at which the file was synchronized. This is not hapening with all messages. It is happening only with messages in subfolders, never with Inbox. It seems when messages is moved by some rule from WebMail or Thunderbird from Inbox to some subfolder, Boxer is not able to read dates correctly, By seraching on Internet we found couple of explanation what might be possibel cause of this behaviour. https://imapsync.lamiral.info/FAQ.d/FAQ.Dates.txt https://serverfault.com/questions/588618/maintain-email-timestamp-when-tran… https://dovecot.org/pipermail/dovecot/2008-July/032165.html Problem with some email clients is that they not look always for "Date:" from email message header. The "Date:" header is usually the date the message was written or sent the first time, at the writer side. This "Date:" header line is never changed by any transfer or copy. If an email client uses the "Date:" header for displaying the date of a message then no problem in synchronization with wrong date should arise. Obviously this is not a case with a Boxer email application. We tried GMail and everything is working fine. We are wondering if someone can explain what APPEND command could have done in our case? Is it relevant at all for our case? Is it used somehow by thunderbird or webmail clients? Also we would like to hear from someone if there are some improvemnents in further release of dovecot or some configuration that we can implement in order to fix this? Thank you in advanced for your suggestions and contribution, Đule Đukić Specijalista za informacionu bezbjednost / ISO ĐuleĐukić Specijalistaza informacionu bezbjednost / ISO http://www.hipotekarnabanka.com/hb-content/uploads/2014/06/slika1.jpg

3 3

RE: handling spam from gmail.
by Marc Roos 11 Jun '20

11 Jun '20

Yes tell that to the people that create rhel6, rhel7 and rhel8 and give lts support. Unless google pays you to train your software to mark their messages as spam, you might want to consider yourself not to smart as well ;) My solution would solve the problem others create (see the other mail). Your solution wastes your time and will always be carrying water to the sea. I think if 50% of providers in the world would do this, it would quickly be end of story for the spam originating from the networks like google and amazon. If there is a McDonalds build next to your home, and their clients throw waste into your garden. You hold McDonalds liable for cleaning this up not? Or are you also going to cleanup their mess indefinitely. -----Original Message----- From: Reindl Harald [mailto:h.reindl@thelounge.net] Sent: donderdag 11 juni 2020 11:09 To: Marc Roos; dominic; dovecot; lists; users Subject: Re: handling spam from gmail. Am 11.06.20 um 11:04 schrieb Marc Roos: > I have got lots of shit coming from *.google.com like these: > > X-Spam-Status: No, score=2.1 required=3.0 tests=BAYES_00 because you are too dumb to train your bayes give me one such message and i am pretty sure it will fire BAYES_80 or BAYES_99 which will burn it with fire and lead to a milter reject here SpamAssassin 3.3.1 is also not very smart in 2020 so instead ask for dumb solutions which making you part of a bigger problem better do your homework

2 1

Pigeonhole-sieve auto-reply
by ＠lbutlr 11 Jun '20

11 Jun '20

Is it possible to have a sieve script reply with a press message to certain emails (and only certain emails) based on sieve matches? I see a lot on vacation replies, but I want something more specific. Something along the lines of procmails formail command? Everything I’ve searched for is about vacation r filing replies into the same folder as the original message.

2 2

Special use folders in mailbox hierarchy
by Scott A. Wozny 11 Jun '20

11 Jun '20

Dear Dovecot Gurus, Setting up my first IMAP server and looking at the folder structure, I had a mailbox I built on a Dovecot server and a mailbox configured by a hosting provider next to each other in Thunderbird and I noticed that the special use folders (Drafts, Trash and Sent) in my default-ish (I did set them to auto = subscribe) Dovecot install make these folders appear parallel to my Inbox folder where my hosting provider’s default configuration has them under the Inbox hierarchically, along with all the folders I built for mail storage over the use of the account. I did some googling, but I cannot find any guidance on which of these is preferred, why, or how they could be controlled in Dovecot. The default Dovecot config is ambiguous (IMHO) in that the mailbox config elements are children to the inbox namespace (implying they go under Inbox in the hierarchy) but their special_use parameter names are \Name which (if you use a UNIX filesystem paradigm) implies they should be at the root of the hierarchy and, therefore, parallel with Inbox, which is how Thunderbird shows them, but I’m not sure if that’s a mail client decision and not anything to do with the server configuration. Since I can’t access the config of my hosting provider, I can’t make any comparisons, so I thought I’d ask on the list if there is any standard guidance on server side configuration of special use folders in Dovecot or if there’s no guidance available because I’m overthinking this. :) Thanks, Scott

3 3

RE: handling spam from gmail.
by Marc Roos 11 Jun '20

11 Jun '20

>> Yes tell that to the people that create rhel6, rhel7 and rhel8 and give >> lts support. > >as said that has nothing to do with your wrong training and RHEL has >always the same problem: you can't package the latest and greatest shit >over 10 years because it requrires newer versions of dependencies > >so what you get with your lazyness by using a LTS distribution is a >"never change a running system, just fix the worst bugs and don't touch >anything else" > >upstream developers don't hold development for 10 years > >written from a Fedora workstation with kernel 5.6.18-200.fc31.x86_64 >from last night realyed over a datacenter firewall and a mailserver >using the same kernel > >> Unless google pays you to train your software to mark their messages as >> spam, you might want to consider yourself not to smart as well ;) > >unless i make good money from customers paying for a nearly 100% >hitrate of spam combine with a zero-false-positive policy i am likely >smarter than you I would argue it is quite difficult to identify intelligence. I am pretty sure I would not start with your reasoning. I have a favourite German saying I like to quote in matters like these "gegen Dummheit kämpfen Götter selbst vergebens" >> My solution would solve the problem others create (see the other mail). >> Your solution wastes your time and will always be carrying water to the >> sea. I think if 50% of providers in the world would do this, it would >> quickly be end of story for the spam originating from the networks like >> google and amazon. > >they won't give a shit and when i get such idiotic mails as you propose >i take the phone, call the sender and suggest to fire his mailadmin >better sooner than later > >> If there is a McDonalds build next to your home, and their clients throw >> waste into your garden. You hold McDonalds liable for cleaning this up >> not? Or are you also going to cleanup their mess indefinitely. > >what a nonsense

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RE: handling spam from gmail.
by Marc Roos 11 Jun '20

11 Jun '20

Your logics sucks. There is a difference between how email works and how spamassassin works. You are assuming that everyone in the world is using spamassassin by including it in 'how email works'. Maybe you like to post a link to your bayes files???? Am 11.06.20 um 11:13 schrieb Marc Roos: > You do not understand how mail works. Google mail is only getting > through when spf checks and the likes are being passed. unless you don't manage to get rid of BAYES_00 in case of clear spam messages don't tell me you understand how email works

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RE: handling spam from gmail.
by Marc Roos 11 Jun '20

11 Jun '20

You do not understand how mail works. Google mail is only getting through when spf checks and the likes are being passed. I am not creating any problems with this, I am just bouncing them back. Google has enough billions to handle these issues. If everyone would apply this procedures, people with legitimate email accounts would move from a spam network to some other provider. People joining these providers are the problem, because it allows these networks to mix spam with legitimate email. When clients start moving out, spam networks are becoming easier to hard block and these providers start thinking about their infrastructure and their bussines model. If everyone would be doing this, it is solving the spam problem. My below procedure should be applicable for any network generating a lot of spam. -----Original Message----- From: Reindl Harald [mailto:h.reindl@thelounge.net] Sent: donderdag 11 juni 2020 10:25 To: Marc Roos; dovecot; users Subject: Re: handling spam from gmail. Am 11.06.20 um 10:19 schrieb Marc Roos: > I am sick of this gmail spam. Does anyone know a solution where I can > do something like this: > > 1. received email from adcpni444(a)gmail.com 2. system recognizes this > email address has been 'whitelisted', continue with 7. > 3. system recognizes as this email never been seen before 4. auto > reply with something like (maybe with a wait time of x hours): > Your message did not receive the final recipient. You are sending > from a known spam provider > network that is why we blocked your message. Please confirm that: > - you are not a spammer and > - you have permission to use the mail adress you send your message to > - you and your provider agree to uphold GDPR legislation > - you and your provider are liable for damages when breaching any > of the above. > > > Click link to confirm and you agree with the above > https://www.domainwithoutletsencryptcertificate.com/asdfasdfadsfaf > > 5. sender clicks confirm url > 6. email address is added to some white list. > 7. email is delivered to recipient. and i am sick of people not understanding how email works! you don't send unasked mail to a in the most cases forged sender unless you want to be part of the problem backscatters and brainless autoreplies have to be burnt with fire

1 0

Dovecot fs quota reports quota as byte
by Kazim Koybasi 11 Jun '20

11 Jun '20

Hello, My dovecot configuration is like below. My filesystem quota is reported as kb and dovecot quota reported as bytes so dovecot quota becomes wrongly greater than filesystem quota. How can I solve this issue? Any help apretiated. Quota name Type Value Limit % user STORAGE 10428416 3242880 321 # 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.24 (124e06aa) # OS: Linux 4.18.0-147.8.1.el8_1.x86_64 x86_64 CentOS Linux release 8.1.1911 (Core) # Hostname: suretired auth_mechanisms = plain login auth_username_format = %Ln debug_log_path = /var/log/dovecot.log first_valid_uid = 1000 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = * mail_debug = yes mail_location = maildir:~/Maildir:INDEX=/var/no-quotas/index/%u:CONTROL=/var/no-quotas/control/%u mail_plugins = quota managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext spamtest spamtestplus mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { quota = fs:user sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = /etc/dovecot/sieve/default.sieve sieve_extensions = +spamtest +spamtestplus sieve_spamtest_max_value = 15 sieve_spamtest_status_header = X-Spam-Score: (-?[[:digit:]]+\.[[:digit:]]).* sieve_spamtest_status_type = score } protocols = imap pop3 lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0600 user = postfix } unix_listener auth-userdb { group = postfix mode = 0600 user = dovecot } } service lmtp { executable = lmtp -L inet_listener lmtp { address = 127.0.0.1 port = 2424 } unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } } service managesieve { process_limit = 1024 } service quota-warning { executable = script /usr/bin/quota-warning.sh unix_listener quota-warning { group = dovecot mode = 0600 user = dovecot } user = dovecot } ssl_cert = </etc/pki/dovecot/certs/letsencrypt/fullchain1.pem ssl_cipher_list = ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv3 !TLSv1 userdb { driver = passwd } protocol lmtp { info_log_path = /var/log/dovecot-lmtp.log log_path = /var/log/dovecot-lmtp-errors.log mail_plugins = quota sieve quota } protocol lda { mail_plugins = quota sieve quota } protocol imap { mail_plugins = quota quota imap_quota } protocol sieve { info_log_path = /var/log/dovecot-sieve.log log_path = /var/log/dovecot-sieve-errors.log managesieve_max_line_length = 65536 } protocol pop3 { mail_plugins = quota pop3_quota quota pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv }

1 0

How to unset namespace configuration from dovecot.conf in conf.d/99-cutom.conf?
by Py Retta 09 Jun '20

09 Jun '20

Dear all, my /etc/dovecot/dovecot.conf [0] that is shipped with the Linux distro (Ubuntu 18.04, dovecot 2.3.10) has a namespace section: namespace inbox { ... mailbox Sent { ... } ... } I need to remove this whole section from the configuration, but I need to do this in a file such as /etc/dovecot/conf.d/99-custom.conf because I want this modification to be stable against automatic updates of dovecot.conf shipped by the distro. This raises the question, how do I "unset" an earlier namespace configuration at a later point in the stack of config files? Speaking in terms of `doveconf -n`, snippet [1] below lists the original configuration (including namespace setup) and [2] lists the desired configuration that results from deleting the namespace passage from dovecot.conf. However, I would like to achieve it without deleting it from dovecot.conf but by adding sth to conf.d/99-custom.conf. Thanks a lot, Py [0] original dovecot.conf (only relevant namespace section): # Default private namespace setup compatible with Courier-IMAP. namespace inbox { separator = . prefix = INBOX. inbox = yes mailbox Sent { auto = subscribe # autocreate and autosubscribe the Sent mailbox special_use = \Sent } mailbox Spam { auto = create # autocreate Spam, but don't autosubscribe special_use = \Junk } mailbox Drafts { auto = create special_use = \Drafts } mailbox Trash { auto = create special_use = \Trash } } [1] `doveconf -n` for the original configuration: # 2.3.10 (0da0eff44): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.9 (db4e9a2f) doveconf: Warning: service auth { client_limit=1000 } is lower than required under max. load (2248) doveconf: Warning: service anvil { client_limit=1000 } is lower than required under max. load (2251) # OS: Linux 4.15.0 x86_64 Ubuntu 18.04.4 LTS ext4 # Hostname: ############ auth_mechanisms = ####################### auth_username_chars = ################ disable_plaintext_auth = #### first_valid_uid = #### imap_client_workarounds = delay-newmail imap_logout_format = rcvd=%i, sent=%o mail_home = ################## mail_location = ##################### mail_log_prefix = "service=%s, user=%u, ip=[%r]. " mail_plugins = " quota" managesieve_logout_format = rcvd=%i, sent=%o managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext imapflags notify namespace inbox { inbox = yes location = mailbox Drafts { auto = create special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spam { auto = create special_use = \Junk } mailbox Trash { auto = create special_use = \Trash } prefix = INBOX. separator = . } passdb { driver = plesk } plugin { quota = maildir:User quota quota_grace = 0 quota_warning = storage=95%% quota-warning %u sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_logout_format = rcvd=%i, sent=%o, top=%t/%p, retr=%r/%b, del=%d/%m, size=%s protocols = imap pop3 sieve service auth-worker { group = user = } service auth { group = unix_listener auth-userdb { group = popuser mode = 0600 user = popuser } user = } service imap-login { process_limit = 1024 service_count = 1 } service imap { process_limit = 1024 service_count = 1 } service pop3-login { process_limit = 1024 service_count = 1 } service pop3 { process_limit = 1024 service_count = 1 } service quota-warning { executable = ################ unix_listener quota-warning { user = popuser } user = popuser } service stats { unix_listener stats-writer { user = popuser } } ssl_cert = ################ ssl_cipher_list = ############# ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { args = uid=popuser gid=popuser driver = static } protocol imap { mail_plugins = " quota imap_quota" } protocol pop3 { pop3_uidl_format = UID%u-%v } protocol lda { mail_plugins = " quota sieve" } [2] `doveconf -n` for the desired configuration (with the namespace section in dovecot.conf removed): # 2.3.10 (0da0eff44): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.9 (db4e9a2f) doveconf: Warning: service auth { client_limit=1000 } is lower than required under max. load (2248) doveconf: Warning: service anvil { client_limit=1000 } is lower than required under max. load (2251) # OS: Linux 4.15.0 x86_64 Ubuntu 18.04.4 LTS ext4 # Hostname: ############ auth_mechanisms = ####################### auth_username_chars = ################ disable_plaintext_auth = #### first_valid_uid = #### imap_client_workarounds = delay-newmail imap_logout_format = rcvd=%i, sent=%o mail_home = ################## mail_location = ##################### mail_log_prefix = "service=%s, user=%u, ip=[%r]. " mail_plugins = " quota" managesieve_logout_format = rcvd=%i, sent=%o managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext imapflags notify passdb { driver = plesk } plugin { quota = maildir:User quota quota_grace = 0 quota_warning = storage=95%% quota-warning %u sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = +notify +imapflags } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_logout_format = rcvd=%i, sent=%o, top=%t/%p, retr=%r/%b, del=%d/%m, size=%s protocols = imap pop3 sieve service auth-worker { group = user = } service auth { group = unix_listener auth-userdb { group = popuser mode = 0600 user = popuser } user = } service imap-login { process_limit = 1024 service_count = 1 } service imap { process_limit = 1024 service_count = 1 } service pop3-login { process_limit = 1024 service_count = 1 } service pop3 { process_limit = 1024 service_count = 1 } service quota-warning { executable = ################ unix_listener quota-warning { user = popuser } user = popuser } service stats { unix_listener stats-writer { user = popuser } } ssl_cert = ################ ssl_cipher_list = ############# ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes userdb { args = uid=popuser gid=popuser driver = static } protocol imap { mail_plugins = " quota imap_quota" } protocol pop3 { pop3_uidl_format = UID%u-%v } protocol lda { mail_plugins = " quota sieve" }

1 0

doveadm protocol bug
by Felipe Gasper 08 Jun '20

08 Jun '20

Hi everyone, On 26th May I emailed this list a few times about an apparent protocol bug in Dovecot’s server-side doveadm implementation. Later that day I sent in a pull request to fix the issue. Thread reference: https://dovecot.org/pipermail/dovecot/2020-May/119066.html Pull request: https://github.com/dovecot/core/pull/129 Thus far neither the mailing list emails nor the PR have garnered any responses. Can someone please weigh in on these? It’s totally understandable if Dovecot’s behavior here is going to say as-is; I’d just like some confirmation so we can note it in our client implementation. (Switching our client to the HTTP API would be out-of-scope for our current project.) Thank you again! cheers, -Felipe Gasper

1 0

Can't share a mailbox
by Maxime DERCHE 08 Jun '20

08 Jun '20

Hello, I have a "notifs@" generic mail account, intended to receive technical monitoring messages. I need to share it with the people of the analyst team. I created a shared namespace, and enabled the modules. doveadm acl creates the dovecot-acl file but not the acl_shared_dict file. I guess something prevents it from doing it, but I fail to see what. It is a LDAP setup, and there is only one vmail (uid/gid 500) UNIX account to read and write the files on the file system. $ > doveadm acl add -u notifs(a)test.example.tld "shared/notifs(a)test.example.tld/INBOX" user=maxime.derche(a)test.example.tld :lrw $ > doveadm acl debug -u maxime.derche(a)test.example.tld "shared/notifs(a)test.example.tld/INBOX" doveadm(maxime.derche(a)test.example.tld): Info: Mailbox 'INBOX' is in namespace 'shared/notifs(a)test.example.tld/' doveadm(maxime.derche(a)test.example.tld): Info: Mailbox path: /var/vmail/test.example.tld/notifs/mail doveadm(maxime.derche(a)test.example.tld): Info: Per-user private flags in mailbox: \Seen doveadm(maxime.derche(a)test.example.tld): Info: User maxime.derche(a)test.example.tld has rights: lrw doveadm(maxime.derche(a)test.example.tld): Error: User maxime.derche(a)test.example.tld is missing 'lookup' right doveadm(maxime.derche(a)test.example.tld): Info: Mailbox shared/notifs(a)test.example.tld/INBOX is NOT visible in LIST /var/vmail/test.example.tld/notifs/mail/dovecot-acl: ---------------------------------------- user=maxime.derche(a)test.example.tld :lrw ---------------------------------------- dovecot -n ---------------------------------------- # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.4 () # OS: Linux 4.19.0-9-amd64 x86_64 Debian 10.4 # Hostname: server.example.tld auth_debug = yes auth_mechanisms = plain login auth_verbose = yes lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_save_to_detail_mailbox = yes mail_access_groups = vmail mail_debug = yes mail_gid = 5000 mail_location = maildir:~/Maildir mail_plugins = quota acl mail_privileged_group = mail mail_server_admin = mailto:postmaster@test.example.tld mail_shared_explicit_inbox = yes mail_uid = 5000 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext imapsieve vnd.dovecot.imapsieve namespace { list = children location = maildir:%%h/mail:INDEXPVT=~/mail/shared/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe autoexpunge = 30 days special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe autoexpunge = 30 days special_use = \Trash } prefix = separator = / } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile acl_shared_dict = file:/var/vmail/shared-mailboxes imapsieve_mailbox1_before = file:/etc/dovecot/sieve/learn-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Junk imapsieve_mailbox2_before = file:/etc/dovecot/sieve/learn-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Junk imapsieve_mailbox2_name = * recipient_delimiter = + sieve = file:~/sieve;active=~/.dovecot.sieve sieve_after = /etc/dovecot/sieve-after sieve_before = /etc/dovecot/sieve-before sieve_global_extensions = +vnd.dovecot.pipe sieve_pipe_bin_dir = /etc/dovecot/sieve sieve_plugins = sieve_imapsieve sieve_extprograms } protocols = " imap lmtp sieve" service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } ssl = required ssl_cert = </etc/ssl/certs/cert.pem ssl_cipher_list = HIGH:!ADH:!AECDH:!PSK:!KRB5:!RC4:!DES:!3DES:!MD5 ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_prefer_server_ciphers = yes userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap override_fields = home=/var/vmail/%d/%n } protocol lmtp { mail_plugins = quota acl sieve userdb { args = allow_all_users=yes uid=vmail gid=vmail home=/var/vmail/%d/%n mail=maildir:~/mail driver = static name = } } protocol imap { mail_plugins = quota acl imap_sieve imap_acl } ---------------------------------------- Does anyone see what I'm doing wrong here? Kind regards, -- Maxime DERCHE Information System Consulting France | NVMQVAM SOLVS https://www.mdisc.fr/ OpenPGP Key ID: 0x814E02A25697FD13 OpenPGP Key Fingerprint: 8B7B 60C9 1095 A198 C883 5205 814E 02A2 5697 FD13

1 0

Doveadm Backup issues
by Francis Augusto Medeiros-Logeay 07 Jun '20

07 Jun '20

Hi, I'm trying to use doveadm backup but I'm having a few issues. When trying locally: `doveadm backup -D -A maildir:/usr/local/backup` It results that no mailbox is separated by user - all seems to sync on the same folder, messing up with the folder structure of the original maildir. When trying remotely: `doveadm backup -D -A -N ssh -i mykey root@myremotebackup.com:/backup doveadmin dsync-server -A` I get this error line for each user: dsync-local(theuser(a)thedomain.com)<5DNrEXdG1l5tAgAAqsACHw>: Error: read(remote) failed: EOF (version not received) doveadm(theuser(a)thedomain.com): Fatal: execvp(ssh) failed: No such file or directory I'd be very thankful if someone could help me with this. Best, Francis -- Francis Augusto Medeiros-Logeay Oslo, Norway

3 5

Deliver administrative message ignoring user quota
by Peter Folta 07 Jun '20

07 Jun '20

Hi everyone, I have a separate internal system running on a different host that needs to put an administrative email into a user’s inbox. I’ve been playing around with the “doveadm mailbox save” command via Doveadm’s HTTP API (https://doc.dovecot.org/admin_manual/doveadm_http_api/#doveadm-mailbox-save <https://doc.dovecot.org/admin_manual/doveadm_http_api/#doveadm-mailbox-save>). This works quite well provided the user is within quota limit, however, I would like to be able to deliver these messages even if the email account is over quota. I noticed that it’s possible to override the quota configuration using dovecot-lda by overriding plugin/quota with the “noenforcing” directive as explained in https://wiki.dovecot.org/Quota/Configuration <https://wiki.dovecot.org/Quota/Configuration>. I don’t currently use LDA, SMTP servers based on Postfix deliver mail via LMTP and I need to be able to deliver this message from a different host in the network. The HTTP API doesn’t seem to support overriding the quota config. What would be the best way to go about this? Thanks Peter

2 2

(no subject)
by Stephen Blackwell 07 Jun '20

07 Jun '20

I want to disable the time penalty for dovecot imap authentication. When receiving a valid user-password combo the server responds in .04 seconds. When I send in an invalid comination it will either respond in 1.544 or 2.044 seconds += .002 I am using dovecot to test a program that sends a login request to a server and processes the response. I want to be able to send a series of valid and invalid login attempts. The issue is that with the 2 seconds delay for a bad login attempt, the tests are too slow to run in production I can see that the delay is defined in auth-penalty.h Is there a way, in the config file, to set AUTH_PENALTY_INIT_SECS = 0, or any other way to remove the time delay for an invalid login. I am running dovecot version 2.2.33.2 I am running without root permissions I do not want to make changes outside of the dovecot config file, password file, or run folder. -- Stephen

3 2

Cannot log in to IMAP server and logs are unclear as to why
by Scott A. Wozny 07 Jun '20

07 Jun '20

I’m trying a super basic config based upon https://wiki.dovecot.org/HowTo/PostfixDovecotLMTP but before I work on shipping mail through Postfix to DoveCot, I wanted to make sure IMAP is working first, but I can’t even get a basic login to so I thought I’d see if the gurus on the list might be able to point out I’m doing wrong. The documentation is pretty good, but there were some gaps I had to guess at and I’m presuming that’s where I went wrong. I’ve turned SELinux to permissive mode, for now. Here’s the doveconf -n: # 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-1062.12.1.el7.x86_64 x86_64 CentOS Linux release 7.7.1908 (Core) # Hostname: imap first_valid_uid = 1000 listen = 192.168.1.207 mail_gid = vmail mail_home = /var/vmail/%d/%n mail_location = sdbox:~/mail mail_uid = vmail mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / } passdb { args = scheme=PLAIN username_format=%u /etc/dovecot/users driver = passwd-file } protocols = imap lmtp service lmtp { group = vmail unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } user = vmail } ssl = no ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = # hidden, use -P to show it userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } I wasn’t sure how to set rights on the users file: [sawozny@imap var]$ cat /etc/dovecot/users test@test.com:{plain}test [sawozny@imap var]$ ls -la /etc/dovecot/users -rw-r--r--. 1 root root 26 Jun 3 23:31 /etc/dovecot/users Also, didn’t know what rights to set on the /var/vmail directoy so I did this: drwxrwx---. 3 vmail vmail 4096 Jun 3 20:52 vmail This directory is also empty except for the lost+fond directory that comes with a disk mount point. My understanding is that the mail home and maildir will manifest automagically on first login, but if I need to prime the pump, please let me know what I need to do. For my test, I did: [sawozny@imap var]$ telnet 192.168.1.207 143 Trying 192.168.1.207... Connected to 192.168.1.207. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN] Dovecot ready. 01 LOGIN test(a)test.com test 01 NO [UNAVAILABLE] Internal error occurred. Refer to server log for more information. Connection closed by foreign host. And the results in the /var/log/maillog file are: Jun 3 23:35:34 imap dovecot: auth: Error: passwd-file /etc/dovecot/users: User test(a)test.com is missing userdb info Jun 3 23:35:44 imap dovecot: auth: Error: passwd-file(test(a)test.com,192.168.1.207,<DBqafDan7ODAqAHP>): user not found from userdb Jun 3 23:35:44 imap dovecot: imap: Error: Authenticated user not found from userdb, auth lookup id=843055105 (auth connected 0 msecs ago, handshake 0 msecs ago, request took 0 msecs, client-pid=12047 client-id=1) Jun 3 23:35:44 imap dovecot: imap-login: Internal login failure (pid=12047 id=1) (internal failure, 1 successful auths): user=<test(a)test.com>, method=PLAIN, rip=192.168.1.207, lip=192.168.1.207, mpid=12049, secured, session=<DBqafDan7ODAqAHP> I’m not sure where I’ve gone wrong. From my understanding of the documentation, all I need in the userdb is name and password. UID, GID and HOME are also indicated as required, but I set them at the system level, so why is the system telling me the user was not found? This definitely isn’t my first rodeo with Linux, but I know almost nothing about messaging so in that regard I’m a totally n00b and would really appreciate some guidance. Thanks, Scott

3 5

Only show mails within 30 days or 60 days?
by hfh＠cndns.com 05 Jun '20

05 Jun '20

How to display emails within 30 days or 60 days in inbox, sent box, etc. For example, in the mail client tool, the user clicks the inbox button and only sees the mail within 30 days. The virtual mailbox plugin will only generate a new mailbox. Thank you！！！

4 3

manual mdbox lock
by rudolf＠padaru.de 05 Jun '20

05 Jun '20

Good Morning, i have a question about the mdbox dotlock technique. We create a new backup strategy for our mailservers because we want to switch the mailformat from mbox to mdbox. Our recent backup plan works mainly with rsync and the inbuild tar function. We want to hande the backups with mdbox similar. Is there a way, how i can write-lock a mail user via the doveadm command or with dotlock files? I have searched the doveadm-sync code but i cant make out the point where the command lock the mailbox for write access. We work with Ubuntu 18, dovecot 2.33.2 Mit freundlichen Grüßen Yours sincerely <https://padaru.de/> Pascal Rudolf | Geschäftsführer PADARU-IT | Bielebohstraße 10 | 02736 Beiersdorf @: rudolf(a)padaru.de | www: <http://padaru.de/> padaru.de mobil: +49 (0) 17 772 595 32

1 0

Mailbox & Server Down
by Andrea Miconi 04 Jun '20

04 Jun '20

My mailboxes are on a Dovecot (IMAP) server.On DNS there is an MX record pointing to the server.To read the mail I use Roundcube.If the server is down, I lose the new mail. I would like to do two things, alternatively. First option.1) I keeep the mail on the provider's server, restoring the original MX record.2) Dovecot does not receive the mail, but should go to download it.3) I can access the server with Roundcube to read the downloaded mail, but if the server is down I can always go to read the mail on the provider's server with its webmail Second optionI install a second mail server and the two have to replicate the mail.But I don't know how to do it, so I need a guide with instructions.Furthermore Roundcube would always access only one server and if this is down, how can I connect to the second one?This is a typical situation for webmail like Yahoo, Outlook or GMail, but I'm not Yahoo, Microsoft and Google ;) Thanks in advance for any advice.

5 7

Error deleting INBOX when doing an imap sync
by Des Magner 04 Jun '20

04 Jun '20

Hi I am trying to set up a new mail server with dovecot. I got it all installed and set up successfully but am running into problems trying to migrate from my current email server. I tried the following command: doveadm -Dv -o imapc_host=[current-imap-host] -o imapc_user=[current-user] -o imapc_password=[password] -o imapc_features=rfc822.size -o mail_fsync=never backup -R -u [user] imapc: It connects fine but eventually fails with the following errors: dsync([user]): Error: Mailbox INBOX sync: mailbox_delete failed: INBOX can't be deleted. dsync([user]): Debug: brain S: Remote mailbox tree: INBOX guid=[xxx] uid_validity=1591096439 uid_next=1 subs=no last_change=0 last_subs=0 dsync([user] Debug: imapc([current-imap-host]:143): Disconnected I am guessing the new INBOX is not compatible with the Inbox on my current mail server so it is trying to delete it. If so is there a way I can change my configuration to allow it to be deleted?

3 2

I can no longer use TLS for Windows7 and Outlook
by Mark Constable 03 Jun '20

03 Jun '20

I currently use Ubuntu 20.04 with Dovecot 2.3.7.2 and OpenSSL 1.1.1f. A few months ago there was an update to all these systems and since then I've had to talk W7 and old Mac clients through disabling ports 993/995 with TLS enabled back to ports 143/110 without SSL or they could not pick up email. Thunderbird users (ie; me) were unaffected. Could anyone share a set of port 993/995 SSL settings known to work with Windows7 and Outlook16 using "dovecot -n|grep ^ssl_" please ? Mine is currently... ssl_ca = </etc/ssl/certs/ca-certificates.crt ssl_cert = </etc/ssl/example.com/fullchain.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_options = no_compression no_ticket ssl_prefer_server_ciphers = yes I have commented out ssl_cipher_list, ssl_min_protocol and others to get back to whatever the defaults are so I am not simply guessing what the optimal settings would be to cover Win7 and up. Yes I know Win7 is no longer supported but that does not help the 100s of older users I have that can't/won't upgrade their computers.

7 6

Packages for CentOS 8
by Peter 01 Jun '20

01 Jun '20

I've now successfully built Dovecot packages for CentOS 8 that do not have the quota support stripped out. I was able to do this because CentOS has now finally shipped the quota-devel package as well as the other -devel packages that were previously missing from CentOS 8. For those of you who are interested they are in the GhettoForge Testing repo for el8 at: http://mirror.ghettoforge.org/distributions/gf/el/8/testing/x86_64/ These are untested so let me know if anyone experiences any issues with them. Peter

3 6

locking question
by Tom Lieuallen 01 Jun '20

01 Jun '20

We're running dovecot 2.3.10 on two different servers (two different environments). Both very similarly configured (sendmail and procmail for mail delivery); same OS and patch levels. One environment has nearly 10,000 users and hasn't seen problems. The other environment has just a handful of users, but one user is very active with email and has a fairly complicated procmail configuration. I'm having ongoing mail file locking problems with that one user... Procmail says it's using dotlocking and fcntl: procmail v3.22 2001/09/10 Locking strategies: dotlocking, fcntl() I'm using defaults for dovecot: #mbox_read_locks = fcntl #mbox_write_locks = dotlock fcntl I have seen this a number of times in dovecot's logs. This signifies a start of locking problems with a mailbox. Mailbox aa_checkme_second: fcntl() failed with mbox: No locks available Procmail's logs show this: procmail: Locking "mail/aa_checkme_second.lock" procmail: Assigning "LASTFOLDER=mail/aa_checkme_second" procmail: Opening "mail/aa_checkme_second" procmail: Acquiring kernel-lock procmail: Kernel-lock failed procmail: Unlocking "mail/aa_checkme_second.lock" These errors were not concurrent; dovecot's errors happened first. I've been suspicious that there was a locking conflict of some kind. My only remaining question on that front is about the read locks. Is it worth trying dotlock for it instead of fcntl? If that's not the problem, then could we be running into some system limitations or a bug in the kernel or mailbox storage? The server running dovecot is Centos 6.10. The mailbox storage is on Isilon OneFS 8.1.2.0. I should probably increase dovecot's logging to see if anything else jumps out at me. thank you for any suggestions. Tom Lieuallen Oregon State Univesity

1 0

Problems with userdb and mail deliveribility
by Chris Bennett 01 Jun '20

01 Jun '20

I briefly got some mails delivered, but not anymore. Attached are dovecot-info.log, dovecot-debug.log, dovecot.log, maillog, /etc/mail/passwd smtpd.conf, vaddr, vusers, vdomains Thanks for any help. Chris Bennett

3 4

auth_policy_server vs client_id and x-originating-ip
by Zdeněk Zámečník 01 Jun '20

01 Jun '20

I run into troubles when trying to set up auth_policy_server in Dovecot 2.3.10.1. It works almost as expected but I cannot get client ID in this process. By setting up "imap_id_log=*" I see in log that Dovecot gets details about mail client like name and version: May 31 14:20:58 mail dovecot: imap(xxx(a)example.xxx)<24796><ft7ytfCmjdZWMSZQ>: ID sent: name=Thunderbird, version=68.8.1 But the auth_policy_server is getting all details except this ID, it's empty: May 31 14:20:58 mail auth-policy[10357]: { May 31 14:20:58 mail auth-policy[10357]: device_id: '', May 31 14:20:58 mail auth-policy[10357]: login: 'xxx(a)example.xxx', May 31 14:20:58 mail auth-policy[10357]: protocol: 'imap', May 31 14:20:58 mail auth-policy[10357]: pwhash: '097a', May 31 14:20:58 mail auth-policy[10357]: remote: '1.2.3.4', May 31 14:20:58 mail auth-policy[10357]: tls: true May 31 14:20:58 mail auth-policy[10357]: } However in some cases I see that client_id is passed to auth_policy_server: May 31 14:27:41 mail auth-policy[10357]: { May 31 14:27:41 mail auth-policy[10357]: device_id: '"name" "Outlook-iOS-Android" "version" "2.0"', May 31 14:27:41 mail auth-policy[10357]: login: 'yyy(a)example.xxx', May 31 14:27:41 mail auth-policy[10357]: protocol: 'imap', May 31 14:27:41 mail auth-policy[10357]: pwhash: '0b63', May 31 14:27:41 mail auth-policy[10357]: remote: '3.4.5.6', May 31 14:27:41 mail auth-policy[10357]: tls: true May 31 14:27:41 mail auth-policy[10357]: } I think I am missing some important point. Maybe IMAP command ID and client_id are totally different. Can you please advise? Is it possible to pass details about mail client to auth_policy_server? Second question is: how I can get "x-originating-ip" from ID command to auth_policy_server? Below is my config file: # 2.3.10.1 (a3d0e1171): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.10 (67bf5bd7) # OS: Linux 5.3.18-2-pve x86_64 Debian 10.4 # Hostname: mail.z-technics.com auth_cache_size = 2 M auth_cache_ttl = 5 mins auth_master_user_separator = * auth_mechanisms = plain login auth_policy_check_before_auth = no auth_policy_hash_nonce = # hidden, use -P to show it auth_policy_report_after_auth = no auth_policy_server_timeout_msecs = 1500 auth_policy_server_url = http://127.0.0.1:8090/ dict { acl = pgsql:/etc/dovecot/dovecot-dict-sql.conf.ext quota = pgsql:/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no imap_client_workarounds = delay-newmail imap_hibernate_timeout = 5 secs imap_id_log = * imap_id_retain = yes login_trusted_networks = 127.0.0.1 mail_gid = 2000 mail_home = /var/vmail/%d/%n mail_location = mdbox:~/mdbox:ALT=/var/vmail-archive/%d/%n/mdbox mail_max_userip_connections = 60 mail_plugins = acl zlib fts quota mail_uid = 2000 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext vacation-seconds editheader imapsieve vnd.dovecot.imapsieve mdbox_rotate_interval = 1 days mdbox_rotate_size = 16 M passdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } passdb { args = /etc/dovecot/masters.db driver = passwd-file master = yes pass = yes } plugin { acl = vfile acl_shared_dict = proxy::acl imapsieve_mailbox1_before = file:/var/vmail/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY imapsieve_mailbox1_name = Spam imapsieve_mailbox2_before = file:/var/vmail/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Spam imapsieve_mailbox2_name = * imapsieve_mailbox3_before = file:/var/vmail/sieve/report-spam.sieve imapsieve_mailbox3_causes = COPY imapsieve_mailbox3_name = Junk imapsieve_mailbox4_before = file:/var/vmail/sieve/report-ham.sieve imapsieve_mailbox4_causes = COPY imapsieve_mailbox4_from = Junk imapsieve_mailbox4_name = * mailbox_alias_new = Sent Messages mailbox_alias_new2 = Sent Items mailbox_alias_new3 = Deleted Items mailbox_alias_old = Sent mailbox_alias_old2 = Sent mailbox_alias_old3 = Trash quota = dict:User quota::proxy::quota quota_grace = 10%% quota_rule2 = Trash:ignore quota_rule3 = Junk:ignore quota_warning = storage=80%% quota-warning 90 %u quota_warning2 = storage=85%% quota-warning 95 %u quota_warning3 = storage=95%% quota-warning 105 %u sieve = /var/vmail/%d/%n/sieve/.sieve sieve_after = /var/vmail/%d/%n/sieve/autoreply.sieve sieve_before = /var/vmail/sieve/global.sieve sieve_dir = /var/vmail/%d/%n/sieve sieve_extensions = +editheader +vacation-seconds sieve_global_dir = /var/vmail/sieve/ sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment sieve_max_redirects = 20 sieve_pipe_bin_dir = /usr/lib/dovecot sieve_plugins = sieve_imapsieve sieve_extprograms sieve_vacation_send_from_recipient = yes } protocols = imap sieve lmtp pop3 service auth-worker { unix_listener auth-worker { user = vmail } user = $default_internal_user } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = vmail } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap-hibernate { unix_listener imap-hibernate { group = $default_internal_group mode = 0660 } } service imap-login { process_min_avail = 10 service_count = 0 vsz_limit = 512 M } service imap { executable = imap process_limit = 3500 unix_listener imap-master { user = $default_internal_user } vsz_limit = 2 G } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 0 service_count = 1 vsz_limit = 64 M } service managesieve { process_limit = 400 } service pop3-login { process_min_avail = 3 service_count = 0 vsz_limit = 320 M } service pop3 { process_limit = 200 vsz_limit = 320 M } service quota-warning { executable = script /etc/dovecot/quota_warning.sh unix_listener quota-warning { mode = 0666 user = vmail } user = vmail } ssl_cert = </etc/ssl/private/multi.z-technics.cz.dovecot.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it stats_writer_socket_path = userdb { args = /etc/dovecot/dovecot-ldap.conf driver = ldap } protocol sieve { managesieve_implementation_string = Dovecot Pigeonhole managesieve_max_compile_errors = 5 } protocol imap { mail_plugins = quota imap_quota fts mailbox_alias imap_acl acl imap_zlib imap_sieve } protocol lda { mail_fsync = optimized } protocol lmtp { mail_fsync = optimized mail_plugins = quota sieve acl }

2 1

2.3.10 + lazy expunge
by Matt Bryant 01 Jun '20

01 Jun '20

Hi, so currently run dovecot 2.2.x on CentOS 7 box and was looking to upgrade to 2.3.10. I use lazy expunge atm into a different namespace but saw on the new doco pages that is is depracted in 2.3.0. Have tested and still seems to work so question is more around why ? Why would this be deprecated given using a different namespace allows 2 things a) the folder where message is located is taken accross so if I want to restore and know where it went b) namespace allows me to specify an alternate location for storing the messages. Also given it does still work is there any indication as to what version the deprecation basically equates to it not working. rgds Matt ------ 8< --------- namespace Deprecated since version v2.3.0.

1 0

identify 143 vs 993 clients
by mj 01 Jun '20

01 Jun '20

Hi, I am trying to find a nice way to identify dovecot clients that are still configured to use port 143 to connect to our mailserver, from the dovecot logs. I would then ask them to move over to 993, and finally disable port 143 altogether. When looking at the dovecot logs, it seems this is not logged in any obvious way. Of course I could use netflow etc, but that would not give us usernames, but IP's, etc. So, is there a nice way to somehow indicate in the dovecot logs, if a client connected on 143 or on 993? Thanks!

13 25

Running doveadm without config file?
by Joseph Tam 01 Jun '20

01 Jun '20

It would be useful to run the "doveadm" utility on a non-dovecot server e.g. generating password hashes: # echo plaintextpass | doveadm pw -s BLF-CRYPT doveadm(user): Fatal: Error reading configuration: stat(/etc/dovecot/dovecot.conf) failed: No such file or directory Is there a way to circumvent the need for a configuration file? Joseph Tam <jtam.home(a)gmail.com>

2 4

Current thinking on backups ?
by Laura Smith 30 May '20

30 May '20

Hi, What are people doing for backups ? My current process is LVM snapshot and backup from that to NFS share. But there seems to be hints around the internet that people use/abuse "doveadm backup" for backup purposes even though it seems its original intention was for transferring mailboxes between dovecot instances. Assuming its ok to "doveadm backup" to an NFS share, is it ok to use "doveadm backup" when dovecot has replication setup (replication-notify etc.) ? Or will it interfere ? Thanks! Laura

4 4

Operation not permitted - fchown() failed for /run/dovecot/login
by Dshah 30 May '20

30 May '20

# dovecot --version 2.3.10.1 (a3d0e1171) Dovecot is unable to start, I see error " Fatal: fchown() failed for /run/dovecot/login: Operation not permitted" what could be the problem? any help please $ls -la /var/mail/ drwxr-xr-x 1 root root 4096 May 29 17:32 . drwxr-xr-x 1 root root 4096 May 28 17:08 .. drw------- 2 root root 4096 May 29 17:32 domains ====# cat /etc/dovecot/dovecot.conf===== auth_mechanisms = plain login auth_username_format = %Lu auth_verbose = yes auth_debug = yes auth_debug_passwords = no log_timestamp = "%Y-%m-%d %H:%M:%S " login_greeting = IMAP server ready disable_plaintext_auth = no protocols = imap pop3 log_timestamp = "%Y-%m-%d %H:%M:%S " mail_location = maildir:/var/mail/domains/%d/%n first_valid_gid = 105 first_valid_uid = 102 last_valid_gid = 105 last_valid_uid = 102 service anvil { client_limit = 2100 } ssl_cert = </secret/tls.crt ssl_key = </secret/tls.key ssl_ca = </secret/ca.crt namespace inbox { inbox = yes mailbox Trash { auto = create special_use = \Trash } mailbox Spam { auto = no special_use = \Junk } mailbox Ham { auto = no } mailbox Sent { auto = subscribe special_use = \Sent } } # service auth { # unix_listener auth-master { # mode = 0600 # user = vmail # } # unix_listener /var/spool/postfix/private/auth { # mode = 0666 # user = postfix # group = postfix # } # user = root # } # service auth-worker { # user = root # } # protocol lda { # log_path = /home/vmail/dovecot-deliver.log # auth_socket_path = /var/run/dovecot/auth-master # postmaster_address = postmaster(a)razalabs.com # } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } userdb { driver = static args = uid=102 gid=105 home=/var/mail/domains/%d/%n allow_all_users=yes } passdb { driver = sql args = /etc/dovecot/dovecot-sql.conf.ext } =================/etc/dovecot/dovecot-sql.conf.ext=============== driver = mysql connect = host=localhost dbname=mail user=root password=pass default_pass_scheme = CRYPT password_query = SELECT email as user, password FROM users WHERE email='%u'; =================dovecot-sql.conf.ext=============== =================/etc/dovecot/dovecot-sql.conf.ext=============== driver = mysql connect = host=localhost dbname=mail user=root password=pass default_pass_scheme = CRYPT password_query = SELECT email as user, password FROM users WHERE email='%u'; =================dovecot-sql.conf.ext=============== and postfix =================/etc/postfix/main.cf=============== inet_protocols = all meta_directory = /etc/postfix shlib_directory = /usr/lib/postfix myhostname = mail.my-domain.com mynetworks = 127.0.0.0/8 message_size_limit = 30720000 virtual_alias_domains = virtual_alias_maps = proxy:mysql:/etc/postfix/mysql-virtual_forwardings.cf, mysql:/etc/postfix/mysql-virtual_email2email.cf virtual_mailbox_domains = proxy:mysql:/etc/postfix/mysql-virtual_domains.cf virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql-virtual_mailboxes.cf virtual_mailbox_base = /var/mail/domains virtual_uid_maps = static:102 virtual_gid_maps = static:105 smtpd_sasl_type = dovecot smtpd_sasl_path = /var/spool/postfix/private/auth smtpd_sasl_auth_enable = yes broken_sasl_auth_clients = yes smtpd_sasl_authenticated_header = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_use_tls = yes smtpd_tls_cert_file = /secret/tls.crt smtpd_tls_key_file = /secret/tls.key #virtual_create_maildirsize = yes #virtual_maildir_extended = yes proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks virtual_transport = dovecot dovecot_destination_recipient_limit = 1 smtpd_milters = inet:127.0.0.1:8891 milter_default_action = accept =================/etc/postfix/main.cf===============

1 1

migrating dovecot to new server
by David Mehler 30 May '20

30 May '20

Hello, I'm needing to migrate my dovecot installation it's 2.3 on FreeBSD 12.1 to a new server. I'd ideally like to back up all the mails in the maildir location, copy that over, load in my configuration files, and bring the system back up. I doubt it's that easy, any pitfalls I should watch out for? Thanks. Dave.

4 4

director -> POP3s/IMAPs -> mailbox host
by patosec 28 May '20

28 May '20

Hello again, I did a lot of trial and error already, but I can't seem to find a way to encrypt my dovecot director to dovceot mailbox traffic. Is there a way to configure dovecot director to only use ssl/tls encrypted connections for specific tagged mailbox clusters? (or all clusters, in fact does not matter if it could be restricted to tags) Looks like there is also no documentation available for this sort of configuration. I tried setting my mailbox nodes to "ssl = require" butt after doing so I can't login through director proxy anymore. It always looks like ssl/tls termination is finally done on director side. Anyone tried this already or has a running setup doing encryption from lets say frontend to backend? Thanks, greetings Patrick

2 2

service doveadm - how to debug proxying with director
by patosec 28 May '20

28 May '20

Hello everyone, I'm on a small dovecot director -> dovecot mailbox setup and I try to get doveadm command proxying to work. Though I don't get the expected output. My directors do not forward the doveadm commands to the expected backend host. Doveadm is working as expected on the backend hosts, the director hosts just dont log anything about the proxying that should happen or anything else about the doveadm commands at all. Can someone guide me in a direction on what to try next or maybe got a working config regarding doveadm proxying? Thanks in advance! Some technical data regarding my problem: Dovecot Version: 2.3.10 (0da0eff44) Output of a 'doveadm director status' command: mail server ip tag vhosts state state changed users 10.0.0.81 tag1 100 up - 0 10.0.0.82 tag1 100 up - 1 Output of a 'doveadm director ring status' command: director ip port type last failed status ping ms input output buffered buffered peak last read last write 10.0.0.193 9090 self never ring synced 5 - - - - - - 10.0.0.194 9090 right never synced 0 2051 6400 0 757 2020-05-28 09:56:37 2020-05-28 09:56:37 10.0.0.195 9090 left never synced 0 4929 1804 0 37 2020-05-28 09:56:37 2020-05-28 09:56:37 This is my dovecot-director hosts configuration (doveadm related part): service doveadm { inet_listener { # any port you want to use for this: port = 24245 } } local 0.0.0.0 { # password to use for client authentication doveadm_password = secret # allow client to only use specified list of commands (default is all): #doveadm_allowed_commands = } # same port as doveadm's inet_listener doveadm_port = 24245 protocol doveadm { # NOTE: director-userdb socket is actually used only for passdb lookups, not userdb lookups auth_socket_path = director-userdb } And here the dovecot-backend hosts configuration (doveadm related part): ### director conf service doveadm { inet_listener { # any port you want to use for this: port = 24245 } } local 0.0.0.0 { # password to use for client authentication doveadm_password = secret # allow client to only use specified list of commands (default is all): #doveadm_allowed_commands = } A 'doveadm user -u test(a)test.com' command on the backend host: userdb: test(a)test.com user : test(a)test.com home : /var/spool/imap/test(a)test.com quota : maildir:User quota quota_rule: *:storage=1048576:messages=153000 A 'doveadm user -u test(a)test.com' command on the director host: userdb: test(a)test.com user : test(a)test.com

2 3

Determinant of umask for sieve_pipe_bin_dir scripts?
by Laura Smith 27 May '20

27 May '20

Hi, What determines the umask of sieve_pipe_bin_dir scripts ? The results from my script are always being set to 0600. My script is simple and shown below, even if I adjust the right line to add " && chmod 644", the actual resulting file still remains at 0600 ?!? #!/bin/bash # Usage: imapsieve_copy <email> <spam|ham> MSG_USER="$1" MSG_TYPE="$2" RUN_UUID=$(cat /proc/sys/kernel/random/uuid) BASE_DIR="/foo/bar" TARGET_DIR="${BASE_DIR}/${MSG_TYPE}" TARGET_FILE="${TARGET_DIR}/${RUN_UUID}" cat > "${TARGET_FILE}" < /dev/stdin && pigz -9 "${TARGET_FILE}"

2 2

How to make IMAPS SSL Cert for Dovecot that works with Thunderbird
by hanasaki＠gmail.com 27 May '20

27 May '20

Hello all, What are the instructions for making an SSL cert for Dovecot IMAPS? Two methods have been tried, and work, with Evolution; however generate the following error when Thunderbird tries to connect. Thank you, method 1 : self signed openssl req -newkey rsa:4096 -sha512 -x509 -days 365 -nodes -keyout mykey.key -out mycert.pem method 2 : Let's Encrypt (LE) CA Created with Certbot ERROR TLS handshaking: SSL_accept() failed: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate: SSL alert number 42, session=<+oooooo>

5 10

doveadm: extra lines?
by Felipe Gasper 27 May '20

27 May '20

Hello, I’m sending doveadm “kick” commands to doveadm-server via the doveadm protocol. When “kick” sends back a NOTFOUND error, though, it’s sending back additional output. strace shows: write(3<UNIX:[3158354->3156665]>, "\t\tkick\tmyssltest\n", 17) = 17 ... read(3<UNIX:[3158354->3156665]>, "\n-NOTFOUND\n\n-\n", 8192) = 14 Going by the protocol documentation (https://wiki2.dovecot.org/Design/DoveadmProtocol) there appear to be 3 extra bytes at the end of the server’s response: "\n-\n". Is this a bug in doveadm-server? Or am I misreading the protocol documentation? Thank you! cheers, -Felipe Gasper

1 2

Panic: assert opcode == HASH_TABLE_OP_UPDATE during replication (dsync-local)
by Alexey 26 May '20

26 May '20

Hello. I got an error and have no idea how to fix it, or workaround it. dsync-local(mymail(a)mymail.org)<PR2hBB86zV52SQAACjx0Gw>: Panic: file hash.c: line 251 (hash_table_insert_node): assertion failed: (opcode == HASH_TABLE_OP_UPDATE) dsync-local(mymail(a)mymail.org)<PR2hBB86zV52SQAACjx0Gw>: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x3d) [0x7fd8acd5d15d] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7fd8acd5d27e] -> /usr/lib/dovecot/libdovecot.so.0(+0xec88b) [0x7fd8acd6688b] -> /usr/lib/dovecot/libdovecot.so.0(+0xec8c1) [0x7fd8acd668c1] -> /usr/lib/dovecot/libdovecot.so.0(+0x4ec56) [0x7fd8accc8c56] -> /usr/lib/dovecot/libdovecot.so.0(+0x4f9b3) [0x7fd8accc99b3] -> doveadm(dsync_mailbox_tree_find_delete+0x1b2) [0x5567056b7aa2] -> doveadm(+0x4a265) [0x5567056ad265] -> doveadm(dsync_brain_recv_mailbox_tree_deletes+0xc8) [0x5567056aded8] -> doveadm(dsync_brain_run+0x1ae) [0x5567056aaa9e] -> doveadm(+0x48104) [0x5567056ab104] -> doveadm(+0x58d1f) [0x5567056bbd1f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7fd8acd7cb79] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x131) [0x7fd8acd7e0c1] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x4c) [0x7fd8acd7cc1c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40) [0x7fd8acd7cd90] -> doveadm(+0x2e9f4) [0x5567056919f4] -> doveadm(+0x30b16) [0x556705693b16] -> doveadm(+0x3170a) [0x55670569470a] -> doveadm(doveadm_mail_try_run+0x21e) [0x556705694ffe] -> doveadm(main+0x552) [0x5567056851b2] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xeb) [0x7fd8ac90109b] -> doveadm(_start+0x2a) [0x5567056852fa] This is output of manual run doveadm sync process between dovecot 2.3.10.1 (side with error message) and dovecot 2.3.7.2 (remote side). I have `require ["fileinto"];` on both sides in .dovecot.sieve files. Regards, Alukardd.

1 0

Avoiding logging password when dict lookup fails
by Geo Mander 26 May '20

26 May '20

I've made a unix-socket auth setup, by looking at the examples here: https://doc.dovecot.org/configuration_manual/authentication/dict/#complete-… I need to ship the plain password to the socket as well, so i have simply added %w to the lookup key, like so: key = passdb/U=%u P=%w My problem is, that if the socket connection is down for whatever reason, dovecot will write the entire message above - including the plaintext password - into the logfile. --- May 25 11:17:48 imap-1 dovecot: auth-worker(32690): Error: dict-client: Lookup 'shared/passdb/U=john.doe(a)example.com P=john123 failed: net_connect_unix(/var/run/dovecot/doveauthdsocket) failed: Connection refused (reply took 0.000 secs (0.000 in dict wait, 0.000 in other ioloops, 0.000 in locks)) May 25 11:17:48 imap-1 dovecot: auth-worker(32690): Error: dict( john.doe(a)example.com,8.8.4.4,<Px/Ic3WmsNhb7s1N>): Failed to lookup key shared/passdb/U=john.doe(a)example.com P=john123 -- Can i disable dict client logging? Or can i structure my dict request in a different way to avoid this logging, while still getting the complete user-name and plaintext password shipped over the socket? $ dovecot --version 2.2.36 (1f10bfa63)

1 0

child killed by signal 6
by Peter Nabbefeld 26 May '20

26 May '20

Hello, from time to time I keep getting problems with some emails causing signal 6. I've already reported those, but it seems not to be easy to find the cause. From the logs, it seems to occur in sieve implementation. I've checked the email envelopes tody by accident, probably this part of my telnet session might help: a11 fetch 1 all * 1 FETCH (RFC822.SIZE 16750 INTERNALDATE "22-May-2020 05:02:34 +0000" ENVELOPE ("Fri, 22 May 2020 03:46:54 +0000" "RE: Http2 tomact server taking time in responding when 1st StreamId is a large integer value like 2147483641" (("Prateek Kohli" NIL "prateek.kohli" "ericsson.com.INVALID")) (("Prateek Kohli" NIL "prateek.kohli" "ericsson.com.INVALID")) (("Tomcat Users List" NIL "users" "tomcat.apache.org")) (("Tomcat Users List" NIL "users" "tomcat.apache.org")) NIL NIL "<d778507f-306b-5395-b583-fc1f2651431d(a)apache.org>" " <DB7PR07MB40285E61F0731810A615E3FB92B40(a)DB7PR07MB4028.eurprd07.prod.outlook.com>") FLAGS (\Seen)) a11 OK FETCH completed a12 fetch 2 all * 2 FETCH (RFC822.SIZE 21146 INTERNALDATE "22-May-2020 06:39:54 +0000" ENVELOPE ("Fri, 22 May 2020 06:39:35 +0000" "RE: RST on TCP level sent by Tomcat" (("Arshiya Shariff" NIL "arshiya.shariff" "ericsson.com.INVALID")) (("Arshiya Shariff" NIL "arshiya.shariff" "ericsson.com.INVALID")) (("Tomcat Users List" NIL "users" "tomcat.apache.org")) (("Tomcat Users List" NIL "users" "tomcat.apache.org")) (("markt(a)apache.org" NIL "markt" "apache.org")("M Venkata Pratap M" NIL "m.m.venkata.pratap" "ericsson.com")) NIL " <AM7PR07MB6561761FA78F23F5AAF398399FB70(a)AM7PR07MB6561.eurprd07.prod.outlook.com>" " <AM7PR07MB65615CD03F422AC8D8384FC09FB40(a)AM7PR07MB6561.eurprd07.prod.outlook.com>") FLAGS ()) a12 OK FETCH completed The first message causes signal 6, the second does not. Probably the problem is killed by the two consecutive "NIL"s? I'm not an experienced administrator, only managing my private computer, so I don't know the meaning of every envelope field. But might these two "NIL"s cause the abort? BTW, to download all messages from my IMAP account to my private dovecot instance I had to delete the first message, since I couldn't download any other messages from the IMAP folder otherwise. Kind regards Peter

3 4

Sieve test string and case sensitivity
by Kim Minh Kaplan 25 May '20

25 May '20

Hello, I have found that Pigeonhole comes with an extensive testsuite against the Sieve RFCs. As I am working on a personal Sieve project I decided to run my tool on this testsuite and it stumbled on "Basic assignment: string test failed"[1]. Pigeonhole defaults to comparator "i;octet"[2] for the string test. But Sieve says that the default comparator should be "i;ascii-casemap"[3]. Did I miss some other part of the standard? Can you point me in the right direction? Thank you, Kim Minh. [1]: https://github.com/dovecot/pigeonhole/blob/master/tests/extensions/variable… [2]: https://github.com/dovecot/pigeonhole/blob/master/src/lib-sieve/plugins/var… [3]: https://tools.ietf.org/html/rfc5228#section-2.7.3

2 1

Sieve addheader directive works only partially
by Peter Folta 25 May '20

25 May '20

Hi all, I want to add a custom header to incoming emails from a particular sender. This is what my user Sieve script looks like: require “editheader”; if address :is "From” “special-sender(a)example.xn--com-9o0a { addheader “X-My-Custom-Header” “Header Value"; } I have enabled the editheader extension in my Dovecot configuration: plugin { … sieve_extensions = +editheader } This doesn’t seem to work and no header is added to the email. However, if I also move the email to a different folder in the same if-block, the header gets added just fine: require “editheader”; require “fileinto”; if address :is "From” “special-sender(a)example.xn--com-9o0a { addheader “X-My-Custom-Header” “Header Value”; fileinto “MyFolder”; } Am I missing something? Thanks Peter

4 6

missing man page for “doveadm dsync-server”?
by Felipe Gasper 25 May '20

25 May '20

Hello, Is there a man page for this command? I don’t see one in the repository. Given its utility in, e.g., syncing mailboxes via SSH, it seems like documentation for this command would be useful? Thank you! -Felipe Gasper

3 3

doveadm backup : Error: Failed to access mailbox
by Laura Smith 25 May '20

25 May '20

Hi All, So close and yet so far. ;-( Have been migrating users from an old Dovecot server to a new one. All of the users have doveadm backup'd perfectly, except for one ! What does the below mean ? $ sudo doveadm -v -o imapc_user=jd(a)example.org.tld -o imapc_password=secretSquirrel -o imapc_host=old-server.example.com backup -1 -R -u jd(a)example.org.tld imapc: dsync(jd(a)example.org.tld): Info: imapc(old-server.example.com:993): Connected to 10.10.10.10:993 (local 10.10.10.11:35858) dsync(jd(a)example.org.tld): Error: Failed to access mailbox Sent Messages (jasmin@example: Mailbox doesn't exist: Sent Messages (jasmin@example (0.001 + 0.000 secs). dsync(jd(a)example.org.tld): Error: Failed to access mailbox Sent Messages (jasmin(a)example.org: Mailbox doesn't exist: Sent Messages (jasmin(a)example.org (0.001 + 0.000 secs). dsync(jd(a)example.org.tld): Error: Failed to access mailbox Drafts (jasmin@example: Mailbox doesn't exist: Drafts (jasmin@example (0.001 + 0.000 secs). dsync(jd(a)example.org.tld): Error: Failed to access mailbox Drafts (jasmin(a)example.org: Mailbox doesn't exist: Drafts (jasmin(a)example.org (0.001 + 0.000 secs). dsync(jd(a)example.org.tld): Error: Failed to access mailbox Deleted Messages (jasmin@example: Mailbox doesn't exist: Deleted Messages (jasmin@example (0.001 + 0.000 secs). dsync(jd(a)example.org.tld): Error: Failed to access mailbox Deleted Messages (jasmin(a)example.org: Mailbox doesn't exist: Deleted Messages (jasmin(a)example.org (0.001 + 0.000 secs).

1 1

A small mistake in a Dovecot error message.
by Bill Shirley 24 May '20

24 May '20

I'm setting up a new mail server and got this message: May 21 11:55:09 vader dovecot[4090]: imap-login: Error: Diffie-Hellman key exchange requested, but no DH parameters provided. Set ssh_dh=</path/to/dh.pem The Dovecot parameter is actually: ss*l*_dh<=/path/to/dh.pem not ssh... Fedora release 32 (Thirty Two) dovecot-2.3.9.3-1.fc32.x86_64 Many thanks for such useful software. Bill

2 1

Dovecot passdb and postfix login
by Laura Smith 24 May '20

24 May '20

Hi, Long story short I've got a fully functional Dovecot IMAP instance and I am now looking to upgrade some perimiter authenticated SMTP relays to authenticate against the Dovecot instance. Trouble is that I am seeing errors such as "auth: Warning: sql: Ignoring changed user_query in /etc/dovecot/local_sql_users.conf, because userdb sql not used." in my Postfix server logs and not able to successfully authenticate via AUTH LOGIN on the Postfi instance. Perhaps I'm missing something obvious from my config ? Here is the doveconf -n from the Postfix server in question: # 2.3.10.1 (a3d0e1171): /etc/dovecot/dovecot.conf # OS: Linux 4.19.0-9-amd64 x86_64 Debian 10.4 # Hostname: foobar.example.com auth_mechanisms = plain login auth_verbose = yes auth_verbose_passwords = sha1:7 disable_plaintext_auth = no mail_location = mbox:~/mail:INBOX=/var/mail/%u namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/local_sql_users.conf driver = sql } service auth { inet_listener { address = 127.0.0.1 port = 7425 } inet_listener { address = ::1 port = 7425 } unix_listener /var/spool/postfix-authrelay/private/dovecot-auth { group = postfix mode = 0660 user = postfix } } ssl = no The local_sql_users.conf is the same one that's used on the functioning IMAP servers, just copied accross to the authenticated relay server: $ sudo cat /etc/dovecot/local_sql_users.conf driver = pgsql connect = host=foo dbname=bar user=secret password=squirrel default_pass_scheme = ARGON2ID password_query = select dovecot_username as user,password from get_user('%u') user_query = select 'vmail' as uid, 'vmail' as gid iterate_query = select dovecot_username as user from get_users()

2 1

Re: fail2ban setup centos 7 not picking auth fail?
by Voytek Eymont 23 May '20

23 May '20

On Fri, May 22, 2020 2:05 pm, Adi Pircalabu wrote: > On 22-05-2020 10:38, Voytek Eymont wrote: > > Hardly a Dovecot issue. Can you please post the output of this command? > /usr/bin/fail2ban-regex /var/log/dovecot.log > /etc/fail2ban/filter.d/dovecot.conf Adi, thanks, what I get is: # /usr/bin/fail2ban-regex /var/log/dovecot.log /etc/fail2ban/filter.d/dovecot.conf Running tests ============= Use failregex filter file : dovecot, basedir: /etc/fail2ban Use datepattern : Default Detectors Use log file : /var/log/dovecot.log Use encoding : UTF-8 Results ======= Failregex: 5149 total |- #) [# of hits] regular expression | 2) [5149] ^(?:\[\])?\s*(?:<[^.]+\.[^.]+>\s+)?(?:\S+\s+)?(?:kernel:\s?\[ *\d+\.\d+\]:?\s+)?(?:@vserver_\S+\s+)?(?:(?:(?:\[\d+\])?:\s+[\[$]?\S*(?:\(\S+$)?[\]\)]?:?|[\[$]?\S*(?:\(\S+$)?[\]\)]?:?(?:\[\d+\])?:?)\s+)?(?:\[ID \d+ \S+\]\s+)?(?:pop3|imap)-login: (?:Info: )?(?:Aborted login|Disconnected)(?::(?: [^ $]+)+)? \((?:auth failed, \d+ attempts( in \d+ secs)?|tried to use (disabled|disallowed) \S+ auth)$:( user=<[^>]+>,)?( method=\S+,)? rip=<HOST>(?:, lip=\S+)?(?:, TLS(?: handshaking(?:: SSL_accept failed: error:[\dA-F]+:SSL routines:[TLS\d]+_GET_CLIENT_HELLO:unknown protocol)?)?(: Disconnected)?)?(, session=<\S+>)?\s*$ `- Ignoreregex: 0 total Date template hits: |- [# of hits] date format | [338975] {^LN-BEG}(?:DAY )?MON Day %k:Minute:Second(?:\.Microseconds)?(?: ExYear)? `- Lines: 338975 lines, 0 ignored, 5149 matched, 333826 missed [processed in 87.44 sec] Missed line(s): too many to print. Use --print-all-missed to print all 333826 lines

7 8

Sieve regexp matches wrong
by kverizhnikov 23 May '20

23 May '20

Hello! Recently I've faced with strange issue. So, I want to filter some mails which do not contain cyrillic symbols. I would not like receive email on foreign language except russian and I'm using rule below, but it does not work when text of mail has unicode symbol u2019 or ’ - right single quotation mark. |require ["body","regex"];| |# rule:[Regexp test]| |if not body :text :regex ".*[аАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРсСтТуУфФхХцЦчЧшШщЩъЪыЫьЬэЭюЮяЯ].*"| |{| | discard;| | stop;| |}| I checked this behavior on different versions of dovecot and pigeonhole, and it was the same in all cases. If I change u2019 to, for instance to apostrophe, it begins work as I expect - the mail discarded. Below some information which was got from sieve-test utility. The text consist of only one phrase *Test’test*. Check string *Test’test *- without u2019, using apostrophe root@a4e4b17d33a1:/srv/mail# tail -2 1586937347.M574837P24389.vps.kveri.ru\,S\=1904\,W\=1944\:2\,S Test'test sieve-test output * Script metadata (block: 0): class = file class.version = 0 location = /srv/mail/roundcube.sieve * Required extensions (block: 1): 0: body (id: 18) 1: regex (id: 13) * Main program (block: 2): Address Line Code 00000000: DEBUG BLOCK: 3 00000001: EXTENSIONS [2]: 00000002: body 00000004: regex 00000006: 3: BODY 00000007: BODY-TRANSFORM: TEXT 0000000b: match type: regex 0000000d: key list: STR[138] ".*[аАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРс... 0000009b: 3: JMPTRUE 6 [000000a2] 000000a0: 5: DISCARD 000000a1: 6: STOP 000000a2: 6: [End of code] Performed actions: * discard Implicit keep: (none) In this case the rule works as I expect The second test *Test’test* with ’ instead of apostrophe root@a4e4b17d33a1:/srv/mail# tail -2 1586937347.M574837P24389.vps.kveri.ru\,S\=1904\,W\=1944\:2\,S Test’test sieve-test output * Script metadata (block: 0): class = file class.version = 0 location = /srv/mail/roundcube.sieve * Required extensions (block: 1): 0: body (id: 18) 1: regex (id: 13) * Main program (block: 2): Address Line Code 00000000: DEBUG BLOCK: 3 00000001: EXTENSIONS [2]: 00000002: body 00000004: regex 00000006: 3: BODY 00000007: BODY-TRANSFORM: TEXT 0000000b: match type: regex 0000000d: key list: STR[138] ".*[аАбБвВгГдДеЕёЁжЖзЗиИйЙкКлЛмМнНоОпПрРс... 0000009b: 3: JMPTRUE 6 [000000a2] 000000a0: 5: DISCARD 000000a1: 6: STOP 000000a2: 6: [End of code] Performed actions: (none) Implicit keep: * store message in folder: INBOX In this case email "was located" into INBOX, but I expected it should be discarded. As I said this behavior does not depend on dovecot and pigeonhole version - I've tried dovecot 2.3.7, 2.2.30.x, 2.3.9.3 and 2.3.10, pigeonhole 0.5.7.2, 0.5.9 and 0.5.10, fresh install and working in docker container. The dovecot-sysreport was taken from the last one. What am I doing wrong? Is it pigeonhole bug or smth like that?

2 1

Convert standalone mbox to standalone Maildir with Dsync - hierarchy separator error
by Sam Kuper 23 May '20

23 May '20

Dear Dovecot users/devs, I have the following mbox file: /tmp/dsync_test/mbox/2002-September I would like to convert it to a Maildir: /tmp/dsync_test/maildir (Currently, the latter is just an empty directory.) I am attempting this on an old PC running Debian 9 ("Stretch"). I installed the dovecot-core package in order to make the `dsync` tool available on that PC. I have not otherwise done anything with Dovecot on that PC; for instance, I have not created or edited any Dovecot config files. `man dsync` gives the Dovecot version as 2.2. Inspired by the man page and the Dovecot wiki, here was my first attempt to perform the conversion. (I have added newlines between each line of the output, for readability.) $ dsync -Dv -o 'mail_location=maildir:/tmp/dsync_test/maildir' \ backup \ mbox:/tmp/dsync_test/mbox/:INBOX=/tmp/dsync_test/mbox/2002-September Debug: Loading modules from directory: /usr/lib/dovecot/modules/doveadm Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_acl_plugin.so: undefined symbol: acl_lookup_dict_iterate_visible_next (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_expire_plugin.so: undefined symbol: expire_set_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_quota_plugin.so: undefined symbol: quota_user_module (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_lucene_plugin.so: undefined symbol: lucene_index_iter_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_plugin.so: undefined symbol: fts_user_get_language_list (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/libdoveadm_mail_crypt_plugin.so: undefined symbol: mail_crypt_box_get_pvt_digests (this is usually intentional, so just ignore this message) doveadm(sampablokuper): Debug: Effective uid=1000, gid=1000, home=/home/sampablokuper doveadm(sampablokuper): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/tmp/dsync_test/maildir doveadm(sampablokuper): Debug: maildir++: root=/tmp/dsync_test/maildir, index=, indexpvt=, control=, inbox=/tmp/dsync_test/maildir, alt= doveadm(sampablokuper): Debug: Namespace : Using permissions from /tmp/dsync_test/maildir: mode=0755 gid=default dsync(sampablokuper): Debug: Effective uid=1000, gid=1000, home=/home/sampablokuper dsync(sampablokuper): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=mbox:/tmp/dsync_test/mbox/:INBOX=/tmp/dsync_test/mbox/2002-September dsync(sampablokuper): Debug: fs: root=/tmp/dsync_test/mbox, index=, indexpvt=, control=, inbox=/tmp/dsync_test/mbox/2002-September, alt= dsync(sampablokuper): Error: Mail locations must use the same virtual mailbox hierarchy separator (specify separator for the default namespace) As you can see, it ends with "Error: Mail locations must use the same virtual mailbox hierarchy separator (specify separator for the default namespace)". So, I tried specifying a hierarchy separator, but this failed too: $ dsync -Dv \ -o 'separator=.' \ -o 'mail_location=maildir:/tmp/dsync_test/maildir' \ backup \ mbox:/tmp/dsync_test/mbox/:INBOX=/tmp/dsync_test/mbox/2002-September Debug: Loading modules from directory: /usr/lib/dovecot/modules/doveadm Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_acl_plugin.so: undefined symbol: acl_lookup_dict_iterate_visible_next (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_expire_plugin.so: undefined symbol: expire_set_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_quota_plugin.so: undefined symbol: quota_user_module (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_lucene_plugin.so: undefined symbol: lucene_index_iter_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_plugin.so: undefined symbol: fts_user_get_language_list (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/libdoveadm_mail_crypt_plugin.so: undefined symbol: mail_crypt_box_get_pvt_digests (this is usually intentional, so just ignore this message) doveadm(sampablokuper): Debug: Effective uid=1000, gid=1000, home=/home/sampablokuper doveadm(sampablokuper): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/tmp/dsync_test/maildir doveadm(sampablokuper): Debug: maildir++: root=/tmp/dsync_test/maildir, index=, indexpvt=, control=, inbox=/tmp/dsync_test/maildir, alt= doveadm(sampablokuper): Debug: Namespace : Using permissions from /tmp/dsync_test/maildir: mode=0755 gid=default dsync(sampablokuper): Debug: Effective uid=1000, gid=1000, home=/home/sampablokuper dsync(sampablokuper): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=mbox:/tmp/dsync_test/mbox/:INBOX=/tmp/dsync_test/mbox/2002-September dsync(sampablokuper): Debug: fs: root=/tmp/dsync_test/mbox, index=, indexpvt=, control=, inbox=/tmp/dsync_test/mbox/2002-September, alt= dsync(sampablokuper): Error: Mail locations must use the same virtual mailbox hierarchy separator (specify separator for the default namespace) I got the same error again when I tried the command above with "/" instead of "." as the hierarchy separator. Forgive me for my ignorance, but how should I correct the invocation I used above? In other words: using dsync, how can I extract/copy the emails from the mbox to the new Maildir? Thank you! -- A: When it messes up the order in which people normally read text. Q: When is top-posting a bad thing? () ASCII ribbon campaign. Please avoid HTML emails & proprietary /\ file formats. (Why? See e.g. https://v.gd/jrmGbS ). Thank you.

2 3

What causes mails to get striked-over only, and not deleted?
by Sebastian Nielsen 23 May '20

23 May '20

I have tried with this sieve config: imapsieve_mailbox1_name = Sent imapsieve_mailbox1_causes = COPY APPEND imapsieve_mailbox1_after = file:/etc/dovecot/sieve/sent.sieve and this sieve file (sent.sieve): discard; This should clearly cause the mail to be deleted right? But whats happen, is that the mail is not deleted, its just marked for deletion (gets a strike-through in Microsoft Outlook). (have tried with _before too, but it wont help). What can I do to ensure the mail actually gets deleted (completely, not moved to trash) and not just flagged for deletion?

3 3

dsync “destination” argument
by Felipe Gasper 22 May '20

22 May '20

Hello, Some code that I didn’t write but am maintaining passes a local script’s path as dsync’s “destination” argument, like so: dsync -D -u john -v backup -R -1 "/code/dsync_client.pl" 127.0.0.1 john(a)mydomain.org dsync_client.pl establishes a TCP connection with a remote dsync process then acts as a proxy between the two dsync processes. “127.0.0.1” and “john(a)mydomain.xn--org-9o0a are given as arguments to dsync_client.pl. I don’t see this usage described in dsync’s man page. I just want to be sure: is this a supported use of dsync? Thank you! cheers, -Felipe Gasper

2 3

fail2ban setup centos 7 not picking auth fail?
by Voytek Eymont 22 May '20

22 May '20

I'm trying to set up fail2ban with dovecot, I have it working on 'old' server Centos 6, but, not getting anywhere with 'new' server on Centos 7 using standard filters I've copied same 'filter' to new server, still get nothing any idea how to figure this out ? on old server, it logs to syslog/messages CentOS release 6.10 (Final) dovecot 2.3.10.1 (a3d0e1171) old # fail2ban-client status dovecot Status for the jail: dovecot |- Filter | |- Currently failed: 2 | |- Total failed: 168 | `- File list: /var/log/dovecot.log `- Actions |- Currently banned: 0 |- Total banned: 32 `- Banned IP list: on new server CentOS Linux release 7.8.2003 dovecot 2.3.10.1 (a3d0e1171) nothing shows up in fail2ban log (ssh, postfix does, only no dovecot) I've copied the actual /etc/fail2ban/filter.d/dovecot.conf from old server, still nothing not sure where/how to look is there a standard/approved doveot filter..? cat jail.local ... [dovecot] enabled = true filter = dovecot logpath = /var/log/dovecot.log maxretry = 3 ignoreip = 127.0.0.1 127.0.0.0/8 ... # fail2ban-client status dovecot Status for the jail: dovecot |- Filter | |- Currently failed: 0 | |- Total failed: 0 | `- Journal matches: _SYSTEMD_UNIT=dovecot.service `- Actions |- Currently banned: 0 |- Total banned: 0 `- Banned IP list: # grep 'auth failed' /var/log/dovecot.log | wc 7669 149916 1558909 # cat dovecot.conf # Fail2Ban filter Dovecot authentication and pop3/imap server # [INCLUDES] before = common.conf [Definition] _daemon = (auth|dovecot(-auth)?|auth-worker) failregex = ^%(__prefix_line)s(?:%(__pam_auth)s(?:$dovecot:auth$)?:)?\s+authentication failure; logname=\S* uid=\S* euid=\S* tty=dovecot ruser=\S* rhost=<HOST>(?:\s+user=\S*)?\s*$ ^%(__prefix_line)s(?:pop3|imap)-login: (?:Info: )?(?:Aborted login|Disconnected)(?::(?: [^ $]+)+)? \((?:auth failed, \d+ attempts( in \d+ secs)?|tried to use (disabled|disallowed) \S+ auth)$:( user=<[^>]+>,)?( method=\S+,)? rip=<HOST>(?:, lip=\S+)?(?:, TLS(?: handshaking(?:: SSL_accept failed: error:[\dA-F]+:SSL routines:[TLS\d]+_GET_CLIENT_HELLO:unknown protocol)?)?(: Disconnected)?)?(, session=<\S+>)?\s*$ ^%(__prefix_line)s(?:Info|dovecot: auth$default$|auth-worker$\d+$): pam$\S+,<HOST>$: pam_authenticate failed: (User not known to the underlying authentication module: \d+ Time$s$|Authentication failure $password mismatch\?$)\s*$ ^%(__prefix_line)s(?:auth|auth-worker$\d+$): (?:pam|passwd-file)$\S+,<HOST>$: unknown user\s*$ ^%(__prefix_line)s(?:auth|auth-worker$\d+$): Info: ldap$\S*,<HOST>,\S*$: invalid credentials\s*$ ignoreregex = [Init] journalmatch = _SYSTEMD_UNIT=dovecot.service # DEV Notes: # * the first regex is essentially a copy of pam-generic.conf # * Probably doesn't do dovecot sql/ldap backends properly (resolved in edit 21/03/2016) # * Removed the 'no auth attempts' log lines from the matches because produces # lots of false positives on misconfigured MTAs making regexp unusable # # Author: Martin Waschbuesch # Daniel Black (rewrote with begin and end anchors) # Martin O'Neal (added LDAP authentication failure regex) # Sergey G. Brester aka sebres (reviewed, optimized, IPv6-compatibility)

2 1

pass a block of parameters to doveadm
by dovecot-user 21 May '20

21 May '20

Hello everyone. Please tell me how to override the configuration file options when using the doveadm utility with the -o switch in case I need to pass a block of parameters, for example, like this: passdb { args = scheme=PLAIN username_format=%u /path/to/file driver = passwd-file } Thanks.

2 1

v2.3.10.1 released
by Aki Tuomi 21 May '20

21 May '20

We are pleased to release v2.3.10.1 Please find it from locations below: https://dovecot.org/releases/2.3/dovecot-2.3.10.1.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.10.1.tar.gz.sig Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot Aki Tuomi Open-Xchange oy --- - CVE-2020-10957: lmtp/submission: A client can crash the server by sending a NOOP command with an invalid string parameter. This occurs particularly for a parameter that doesn't start with a double quote. This applies to all SMTP services, including submission-login, which makes it possible to crash the submission service without authentication. - CVE-2020-10958: lmtp/submission: Sending many invalid or unknown commands can cause the server to access freed memory, which can lead to a server crash. This happens when the server closes the connection with a "421 Too many invalid commands" error. The bad command limit depends on the service (lmtp or submission) and varies between 10 to 20 bad commands. - CVE-2020-10967: lmtp/submission: Issuing the RCPT command with an address that has the empty quoted string as local-part causes the lmtp service to crash.

3 2

FTS-lucene errors : language not available for stemming
by David Gessel 21 May '20

21 May '20

I'm getting some log errors with clucene that I am having no luck tracking down on the interwebs. Errors: May 19 05:05:16 indexer-worker(gessel(a)blackrosetech.com)<62971><aPAEI3zLw17A/QAA0J78UA:EF25M3zLw1779QAA0J78UA>: Error: lucene index /mail/blackrosetech.com/gessel//lucene-indexes: IndexWriter::addDocument() failed (#4): language not available for stemming May 19 05:05:16 indexer-worker: Error: May 19 05:05:16 indexer-worker(gessel(a)blackrosetech.com)<62971><aPAEI3zLw17A/QAA0J78UA:EF25M3zLw1779QAA0J78UA>: Error: Mailbox Security: Mail search failed: Internal error occurred. Refer to server log for more information. [2020-05-19 05:05:16] May 19 05:05:16 indexer-worker(gessel(a)blackrosetech.com)<62971><aPAEI3zLw17A/QAA0J78UA:EF25M3zLw1779QAA0J78UA>: Error: Mailbox Security: Transaction commit failed: FTS transaction commit failed: transaction context (attempted to index 1 messages (UIDs 152736..152736)) Config: FreeBSD 11.3-RELEASE-p8 #0 r360490 dovecot-2.3.10_3 clucene-2.3.3.4_19 py37-pystemmer-2.0.0.1 py37-snowballstemmer-1.2.1 icu-67.1,1 plugin { #setting_name = value expire = Trash mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size fts_autoindex=yes #zlib_save_level = 6 # 1..9 #zlib_save = gz # or bz2 } plugin { fts = lucene # Lucene-specific settings, good ones are: fts_lucene = whitespace_chars=@. mime_parts } I am considering switch to xapian (solr and java... pls noe) as the port is quite tempting from an ease of integration perspective, but the easiest solution would be to resolve these odd indexing errors. Anyone have a clue? -David

6 11

dsync multiple mailboxes per connection?
by Felipe Gasper 21 May '20

21 May '20

Hello, Is it possible to batch syncs of multiple mailboxes in a single dsync session? We’re transferring users between servers and want to use dsync to transfer the mail; ideally we’d like to avoid creating a separate TCP connection per user. Thank you! cheers, -Felipe Gasper

3 2

how to automatically delete folders from Trash after x days
by chayes＠afo.net 20 May '20

20 May '20

This works great for keeping the Trash from overflowing ... doveadm expunge -A mailbox Trash before 30d ... but it doesn't delete folders that the user put in the trash. What is the recommended method for erasing folders from the trash?

2 1

question about director_mail_servers setting
by Joe Wong 20 May '20

20 May '20

Hello, I have a question about director_mail_servers setting for director, I am aware that I can define a list of dovecot backend hostname there but I am not sure if the hashing apply to the hostname or underlying IP address of each hostname given? What if the IP of a specify hostname is changed? Will director pickup the new IP automatically? Will the same user hashed into the original IP still be mapped back to the new IP in this case? - Joe

1 0

Problem with tika
by Arjen Heidinga 19 May '20

19 May '20

Hello all, For some time now we've bin using solr as a search engine (working great). I have added tika for searching inside documents, however it keeps crashing when indexing. When just indexing mails that arrive works good, but a reindex on all mail constantly crashes with below stacktrace. When I observe the packets with wireshark I see a HTTP-flow going to tika and suddenly, midway a document dovecot (or the server) sends a RST. Sometimes after thousands of documents, sometimes after a few. Usually after a few hundred. It appears there are less errors using http than https. Relevant config: OS: CentOS6, fully updated plugin { fts = solr batch_size = 1 fts_solr = url=https://username:password@solr-01.vevida.net:443/solr/dovecot/ #fts_tika = https://solr-01.vevida.net:443/tika/ batch_size = 1000 fts_autoindex=yes soft_commit=no } # dovecot --version 2.3.9.3 (9f41b88fa) # Configure options: --docdir=%{_docdir}/dovecot \ --disable-static \ --with-nss \ --with-shadow \ --with-pam \ --with-gssapi=plugin \ --with-ldap=plugin \ --with-sql=plugin \ --with-pgsql \ --with-sqlite \ --with-zlib \ --with-bzlib \ --with-lzma \ --with-libcap \ --with-ssl=openssl \ --with-ssldir=%{ssldir} \ --with-solr \ --with-docs # It is compiled agains the latest openssl # Tika and Solr: Both latest versions. #Stacktrace: doveadm(info(a)samenmetrenske.nl): Info: Sent: Caching mails seq=1..161 doveadm(info(a)samenmetrenske.nl): Panic: file http-client-request.c: line 1173 (http_client_request_send_more): assertion failed: (req->payload_input != NULL) doveadm(info(a)xxxxxxxxxxxxxxxxxxx.x): Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x2f) [0x7f95d805acbf] -> /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x26) [0x7f95d805add6] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe90ba) [0x7f95d80660ba] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe9161) [0x7f95d8066161] -> /usr/lib64/dovecot/libdovecot.so.0(+0x41158) [0x7f95d7fbe158] -> /usr/lib64/dovecot/libdovecot.so.0(http_client_request_send_more+0x424) [0x7f95d8005094] -> /usr/lib64/dovecot/libdovecot.so.0(http_client_connection_output+0x11a) [0x7f95d800a24a] -> /usr/lib64/dovecot/libssl_iostream_openssl.so(+0x8f6a) [0x7f95d57a2f6a] -> /usr/lib64/dovecot/libdovecot.so.0(+0x114483) [0x7f95d8091483] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x61) [0x7f95d807e581] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xdc) [0x7f95d808076c] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x5c) [0x7f95d807e67c] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f95d807e8c8] -> /usr/lib64/dovecot/libdovecot.so.0(+0x89105) [0x7f95d8006105] -> /usr/lib64/dovecot/libdovecot.so.0(http_client_request_send_payload+0x1f) [0x7f95d80063cf] -> /usr/lib64/dovecot/lib20_fts_plugin.so(+0xd31d) [0x7f95d6ad931d] -> /usr/lib64/dovecot/lib20_fts_plugin.so(fts_parser_more+0x1a) [0x7f95d6ad83ca] -> /usr/lib64/dovecot/lib20_fts_plugin.so(fts_build_mail+0x761) [0x7f95d6ad6401] -> /usr/lib64/dovecot/lib20_fts_plugin.so(+0x114ca) [0x7f95d6add4ca] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_precache+0x2a) [0x7f95d835ab4a] -> doveadm(+0x31e75) [0x55e7c1052e75] -> doveadm(+0x321fb) [0x55e7c10531fb] -> doveadm(+0x2c321) [0x55e7c104d321] -> doveadm(+0x2c577) [0x55e7c104d577] -> doveadm(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x1e8) [0x55e7c104ec38] -> doveadm(doveadm_cmd_run_ver2+0x52e) [0x55e7c105fafe] -> doveadm(doveadm_cmd_try_run_ver2+0x37) [0x55e7c105fb97] -> doveadm(main+0x21a) [0x55e7c1062aca] -> /lib64/libc.so.6(__libc_start_main+0x100) [0x7f95d7983d20] -> doveadm(+0x1c479) [0x55e7c103d479]

1 1

doveadm backup, question
by dovecot-user 19 May '20

19 May '20

Hello everyone. I am an inexperienced user of dovecot and I faced probably a simple problem, but I still do not understand how to solve it. The issue is related to using doveadm backup - I want to backup mailboxes; make this copy on the same machine (hereinafter, files with backup copies will be taken from this machine into the storage by a separate mechanism, this is not related to the issue). I am using dovecot 2.2.27 (c0f36b0) on Debian GNU/Linux 9 (stretch). The options related to storing mail and attachments are as follows: mail_location = mdbox:/var/mail/%d/%n mail_attachment_dir = /var/mail/%d/%n/attach Thus, the mail of user(a)domain.tld is stored in /var/mail/domain.tld/user/, and mail attachments inside this directory, for example: /var/mail/domain.tld/user/attach. When I start copying (as root while in test mode): #doveadm backup -u "user(a)domain.tld" sdbox:/backup/domain.tld/user, copying passes, but, as I understand it, the attachments are not copied (I am judging so far by the volume of the initial storage and the received one, it should not differ VERY much, but it differs by 10 times, it seems that it’s just the total amount of attachments). Tell me, plz, how to run doveadm backup correctly so that everything is copied so that you can subsequently deploy it from the backup? Thanks.

1 0

Multiple vulnerabilities in Dovecot
by Aki Tuomi 18 May '20

18 May '20

Dear subscribers, we are sending notifications for three vulnerabilities, - CVE-2020-10957 - CVE-2020-10958 - CVE-2020-10967 Please find them below --- Aki Tuomi Open-Xchange Oy ------------------ Open-Xchange Security Advisory 2020-05-18 Product: Dovecot Vendor: OX Software GmbH Internal reference: DOV-3784 Vulnerability type: NULL pointer dereference (CWE-476) Vulnerable version: 2.3.0 - 2.3.10 Vulnerable component: submission, lmtp Report confidence: Confirmed Solution status: Fixed by Vendor Fixed version: 2.3.10.1 Researcher credits: Philippe Antoine (Catena Cyber) Vendor notification: 2020-03-24 Solution date: 2020-04-02 Public disclosure: 2020-05-18 CVE reference: CVE-2020-10957 CVSS: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Vulnerability Details: Sending malformed NOOP command causes crash in submission, submission-login or lmtp service. Risk: Remote attacker can keep submission-login service down, causing denial of service attack. For lmtp the risk is neglible, as lmtp is usually behind a trusted MTA. Steps to reproduce: Send ``NOOP EE"FY`` to submission port, or similarly malformed command. Solution: Upgrade to fixed version. ------------------ Open-Xchange Security Advisory 2020-05-18 Product: Dovecot IMAP server Vendor: OX Software GmbH Internal reference: DOV-3875 Vulnerability type: Improper handling of input data (CWE-20) Vulnerable version: 2.3.0 - 2.3.10 Vulnerable component: submission, lmtp Report confidence: Confirmed Solution status: Fixed by Vendor Fixed version: 2.3.10.1 Researcher credits: Philippe Antoine (Catena Cyber) Vendor notification: 2020-03-23 Solution date: 2020-04-02 Public disclosure: 2020-05-18 CVE reference: CVE-2020-10958 CVSS: 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) Vulnerability Details: Sending command followed by sufficient number of newlines triggers a use-after-free bug that might crash submission-login, submission or lmtp service. Risk: Remote attacker can keep submission-login service down, causing denial of service attack. For lmtp the risk is neglible, as lmtp is usually behind a trusted MTA. Steps to reproduce: This can be currently reproduced with ASAN or Valgrind. Reliable way to crash has not yet been discovered. Solution: Upgrade to fixed version. ------------------ Open-Xchange Security Advisory 2020-05-18 Product: Dovecot Vendor: OX Software GmbH Internal reference: DOV-1745 Vulnerability type: Improper input validation (CWE-20) Vulnerable version: 2.3.0 - 2.3.10 Vulnerable component: submission, lmtp Report confidence: Confirmed Solution status: Fixed by Vendor Fixed version: 2.3.10.1 Researcher credits: mailbox.org Vendor notification: 2020-03-20 Solution date: 2020-04-02 Public disclosure: 2020-05-18 CVE reference: CVE-2020-10967 CVSS: 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) Vulnerability Details: Sending mail with empty quoted localpart causes submission or lmtp component to crash. Risk: Malicious actor can cause denial of service to mail delivery by repeatedly sending mails with bad sender or recipient address. Steps to reproduce: Send mail with envelope sender or recipient as ``<""@example.org>``. Workaround: For submission there is no workaround, but triggering the bug requires valid credentials. For lmtp, one can implement sufficient filtering on MTA level to prevent mails with such addresses from ending up in LMTP delivery. Solution: Upgrade to fixed version. ------------------

1 0

dovecot sync not pushing automatically ?
by Laura Smith 17 May '20

17 May '20

Hi, I'm aware its an async process, but despite sending test messages and then waiting a few minutes, the stats are still unchanged : $ sudo doveadm replicator status Queued 'sync' requests 0 Queued 'high' requests 0 Queued 'low' requests 0 Queued 'failed' requests 0 Queued 'full resync' requests 0 Waiting 'failed' requests 0 Total number of known users 18 However if I manually run it using : sudo doveadm -D sync -u test(a)example.com -1 -d -N -l 30 -U It syncs fine and the mails are visible on the standby server. The master server is setup as per the docs : replication_dsync_parameters = -1 -d -N -l 30 -U plugin { mail_replica = tcps:foobar.example.com:11867 } service replicator { process_min_avail = 1 } service aggregator { fifo_listener replication-notify-fifo { user = foobar } unix_listener replication-notify { user = foobar } } service replicator { unix_listener replicator-doveadm { mode = 0600 user = foobar } } replication_max_conns = 10

1 0

iterate_query with static userdb ?
by Laura Smith 17 May '20

17 May '20

Hi, Going by the "static userdb" example on this page (https://wiki.dovecot.org/VirtualUsers#homedirs) tried to achieve a similar setup in conjunction with pgsql for passdb. However I get an error "auth: Warning: sql: Ignoring changed iterate_query in /etc/dovecot/local_sql_users.conf, because userdb sql not used. (If this is intentional, set userdb_warning_disable=yes)" Does this mean the following is not a valid config ? Or at least I will not be able to achieve iteration ? mail_location = maildir:/foobar/mail/%d/%n/Maildir passdb { driver = sql args = /etc/dovecot/local_sql_users.conf } userdb { driver = static args = uid=foo gid=bar home=/foobar/mail/%d/%n }

3 4

"/etc/dovecot/dovecot.conf: passdb is missing driver"
by Laura Smith 17 May '20

17 May '20

Hi, I'm trying to get dovecot working with postgres, I'm on Debian 10 and have installed dovecot-pgsql from the Dovecot repo (https://repo.dovecot.org/ce-2.3-latest/debian/....) I have the following in my local.conf : passdb sql { args = /etc/dovecot/local_sql_users.conf } And the following in the referenced file: driver = pgsql connect = host=localhost dbname=foobar user=bar password=foo default_pass_scheme = ARGON2ID password_query = select dovecot_username as user,password from get_user('%u') iterate_query = select dovecot_username as user from get_users() So surely it should work ? doveconf -n just to complete the picture .... # 2.3.10 (0da0eff44): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.10 (bf8ef1c2) # OS: Linux 4.19.0-9-amd64 x86_64 Debian 10.4 xfs # Hostname: foobar.example.com auth_verbose = yes auth_verbose_passwords = sha1:7 doveadm_password = # hidden, use -P to show it mail_location = maildir:/foobar/mail/%d/%n/Maildir mail_plugins = " notify replication" managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } passdb { args = /etc/dovecot/local_sql_users.conf name = sql } plugin { mail_replica = tcps:standby.example.com:11867 sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = imap lmtp replication_dsync_parameters = -1 -d -N -l 30 -U service aggregator { fifo_listener replication-notify-fifo { user = foobar } unix_listener replication-notify { user = foobar } } service auth { unix_listener /var/spool/postfix/private/dovecot-auth { group = postfix mode = 0660 user = postfix } vsz_limit = 2 G } service doveadm { inet_listener { port = 11867 ssl = yes } } service imap-login { process_min_avail = 5 service_count = 1 } service lmtp { process_min_avail = 5 unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } user = foobar } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieves { address = port = 5190 ssl = yes } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 user = foobar } } ssl = required ssl_ca = </etc/foobar/ssl/example.com.chain ssl_cert = </etc/foobar/ssl/example.com.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_prefer_server_ciphers = yes userdb { driver = passwd } userdb { args = uid=foobar gid=foobar home=/foobar/mail/%d/%n driver = static } protocol lmtp { mail_plugins = sieve postmaster_address = foobar(a)example.com } protocol lda { deliver_log_format = msgid=%m: %$ mail_plugins = sieve postmaster_address = postmaster quota_full_tempfail = yes rejection_reason = Your message to <%t> was automatically rejected:%n%r } protocol imap { mail_max_userip_connections = 20 }

2 1

Fallback driver after autodection
by Bjoern Koenig 16 May '20

16 May '20

Dear developers and dovecot users, I am running a dovecot with virtual users that have a mailbox using the Maildir format. mail_location = maildir:/usr/local/virtual/%d/%n New mailboxes are created on-the-fly if a new user logs in. I had the wish that the mailboxes of new users are created using the sdbox format and old mailboxes remain in Maildir format. In case the Maildir and sdbox mailboxes already exist, it is easy to use the "auto" driver which detects the correct format. But it is not possible to create mailboxes with the "auto" driver because there is no way to tell dovecot the preferred mailbox format. I wrote some lines of code which add the possibility to specify a fallback driver that will be used if a mailbox is created with the "auto" driver. mail_location = auto:/usr/local/virtual/%d/%n:FALLBACK=sdbox In case you like the idea you might want to develop it further. I am aware of the fact that there are some caveats if you mix it with other settings like LAYOUT. It won't work in any case. Best regards Bjoern --------------------------------------------------------------------------- diff -ruN src.bak/lib-storage/mail-storage.c src/lib-storage/mail-storage.c --- src/lib-storage/mail-storage.c.bak 2020-03-05 15:35:53.000000000 +0100 +++ src/lib-storage/mail-storage.c 2020-05-15 22:35:40.975992000 +0200 @@ -144,6 +144,10 @@ return classes[i]; } } + + if (set->fallback_driver != NULL) + return mail_storage_find_class(set->fallback_driver); + return NULL; } @@ -216,8 +220,10 @@ } storage_class = mail_storage_autodetect(ns, list_set); - if (storage_class != NULL) + if (storage_class != NULL) { + storage_class->v.get_list_settings(ns, list_set); return storage_class; + } (void)mail_user_get_home(ns->user, &home); if (home == NULL || *home == '\0') home = "(not set)"; diff -ruN src.bak/lib-storage/mailbox-list.c src/lib-storage/mailbox-list.c --- src/lib-storage/mailbox-list.c.bak 2020-03-05 15:35:53.000000000 +0100 +++ src/lib-storage/mailbox-list.c 2020-05-15 22:34:44.329802000 +0200 @@ -173,6 +173,8 @@ list->set.inbox_path = p_strdup(list->pool, set->inbox_path); list->set.subscription_fname = p_strdup(list->pool, set->subscription_fname); + list->set.fallback_driver = + p_strdup(list->pool, set->fallback_driver); list->set.list_index_fname = p_strdup(list->pool, set->list_index_fname); list->set.list_index_dir = @@ -360,6 +362,8 @@ else if (strcmp(key, "FULLDIRNAME") == 0) { set_r->index_control_use_maildir_name = TRUE; dest = &set_r->maildir_name; + } else if (strcmp(key, "FALLBACK") == 0) { + dest = &set_r->fallback_driver; } else if (strcmp(key, "BROKENCHAR") == 0) { if (strlen(value) != 1) { *error_r = "BROKENCHAR value must be a single character"; diff -ruN src.bak/lib-storage/mailbox-list.h src/lib-storage/mailbox-list.h --- src/lib-storage/mailbox-list.h.bak 2020-03-05 15:35:53.000000000 +0100 +++ src/lib-storage/mailbox-list.h 2020-05-15 22:35:01.251579000 +0200 @@ -121,6 +121,7 @@ const char *inbox_path; const char *subscription_fname; + const char *fallback_driver; const char *list_index_fname; /* Mailbox list index directory. NULL defaults to index directory. The path may be relative to the index directory. */ ---------------------------------------------------------------------------

1 0

SSL Error
by Brandon Roa 15 May '20

15 May '20

I just installed a certificate on my mail server to Postfix and Dovecot. The certificate is functional on Postfix, but for some reason I keep getting this error. Any suggestions on how to fix it? mail dovecot: imap-login: Error: SSL: Stacked error: error:1408A10B:SSL routines:ssl3_get_client_hello:wrong version number Here is my configuration: # 2.2.22 (fe789d2): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.13 (7b14904) # OS: Linux 4.4.0-45-generic x86_64 Ubuntu 16.04.6 LTS ext4 auth_debug = yes auth_debug_passwords = yes auth_mechanisms = plain cram-md5 login auth_verbose = yes auth_verbose_passwords = plain base_dir = /var/run/dovecot/ disable_plaintext_auth = no mail_debug = yes mail_gid = 5000 mail_location = maildir:/home/vmail/%d/%n mail_plugins = quota mail_uid = 5000 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { quota_rule = *:storage=5G sieve = /etc/dovecot/sieve/default.sieve sieve_default = /var/lib/dovecot/sieve/default.sieve sieve_dir = ~/sieve } postmaster_address = postmaster(a)example.com protocols = " imap sieve pop3" service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } ssl_cert = </etc/ssl/certs/example.pem ssl_key = </etc/ssl/private/example.key userdb { args = uid=5000 gid=5000 home=/home/vmail/%d/%n driver = static } verbose_ssl = yes protocol lda { mail_plugins = quota sieve } protocol imap { mail_plugins = quota imap_quota }

2 3

converting old uucp buffer files to maildir
by mh＠mike.franken.de 15 May '20

15 May '20

Hi *, besides my dovecot maildir structure, that has been migrated from an Exchange server, I have an even older mail structure in an ancient uucp style. The program named CrossPoint I used for this isn't wideley known, but it used so called mpuffer files in a plain text format. It is the program I still use to write for example this mail. I wonder if there already exists a program or script to convert the files from this program to the Dovecot maildir structure or some Howto for writing it myself. The format of these files looks like shown below. Mails are separated by two new lines. ------------------------< snip snip snip >----------------------------- EMP: /archiv/net/dovecot^M KOP: <some_recipient>^M OEM: dovecot(a)dovecot.org^M ABS: ricardomachini(a)gmail.com (Ricardo Machini Barbosa)^M WAB: dovecot-bounces(a)dovecot.org^M BET: Header search on Dovecot with SOLR^M ROT: perth.mydomain.de!localhost!perth.hirmke.de!aqua.hirmke.de!elvis.otherdomain.de!rachael.otherdomain.de!talvi.dovecot.org!talvi.dovecot.org!mail-qk1-x72e.google.com!smtp.gmail.com!DESKTOP4CIJMB3^M MID: 078901d61d7e$0964bcd0$1c2e3670$(a)gmail.com^M EDA: 20200428165659W-03^M LEN: 6112^M MAILER: Microsoft Outlook 16.0^M X-XP-Boundary: ----=_NextPart_000_078A_01D61D64.E4184820^M MIME-Type: multipart/alternative; boundary="----=_NextPart_000_078A_01D61D64.E4184820"^M U-Content-Type: multipart/alternative; boundary="----=_NextPart_000_078A_01D61D64.E4184820"^M U-Sender: dovecot-bounces(a)dovecot.org^M U-Received: from localhost (localhost [127.0.0.1]) by perth.mydomain.de (Postfix) with ESMTP id 245AF862DA8 for <<some_recipient>>; Tue, 28 Apr 2020 18:58:11 +0200 (CEST)^M U-Authentication-Results: perth.mydomain.de (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com^M U-Received: from perth.mydomain.de ([127.0.0.1]) by localhost (perth.hirmke.de [127.0.0.1]) (amavisd-new, port 10024) with LMTP id RVP0-5mmK3XH for <<some_recipient>>; Tue, 28 Apr 2020 18:58:09 +0200 (CEST)^M U-Received: from aqua.mydomain.de (aqua.hirmke.de [192.168.1.11]) by perth.hirmke.de (Postfix) with ESMTP id 66A8B862D97 for <<some_recipient>>; Tue, 28 Apr 2020 18:58:07 +0200 (CEST)^M U-Received: by aqua.mydomain.de (Postfix, from userid 10) id 56D88506E; Tue, 28 Apr 2020 18:58:07 +0200 (CEST)^M U-Received: from rachael.otherdomain.de ([193.175.24.38]) by elvis.otherdomain.de with esmtp (Exim 3.36 #1) id 1jTTYK-0007WE-00 for <some_recipient>; Tue, 28 Apr 2020 18:57:48 +0200^M U-Received: from talvi.dovecot.org (talvi.dovecot.org [94.237.25.159]) by rachael.otherdomain.de (Postfix) with ESMTPS id 9C19510642C45 for <<some_recipient>>; Tue, 28 Apr 2020 18:57:46 +0200 (CEST)^M U-Received: from talvi.dovecot.org (localhost.localdomain [127.0.0.1]) by talvi.dovecot.org (Postfix) with ESMTP id 12ABD2B3C9F; Tue, 28 Apr 2020 19:57:06 +0300 (EEST)^M X-Original-To: dovecot(a)dovecot.org^M U-Delivered-To: dovecot(a)dovecot.org^M U-Received: from mail-qk1-x72e.google.com (mail-qk1-x72e.google.com [IPv6:2607:f8b0:4864:20::72e]) by talvi.dovecot.org (Postfix) with ESMTPS id D48EB2B3C6F for <dovecot(a)dovecot.org>; Tue, 28 Apr 2020 19:57:03 +0300 (EEST)^M U-Received: by mail-qk1-x72e.google.com with SMTP id c63so22534959qke.2 for <dovecot(a)dovecot.org>; Tue, 28 Apr 2020 09:57:03 -0700 (PDT)^M U-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:mime-version:thread-index :content-language; bh=u9iSrDj6VaHxbCoUFYZ7Zp0PHd/EPA66NRtYVeLn0+Q=; b=QUqHsAo0P6JkAidluC5utFcRyQ3AaJXn6GJwM/l+wJE0XM40Ks/0A5uNE16l76pTNU 37Uu5RETZXTMIvyJHkCgJXDVQS5RPep8U0Bw//DMBSC09XMaxVDVu0hVln2UQvNhFkZy 3DvfA1z1HOMmUlVpyYuAVgJa1FUd7VB34jmKmyrB4+0PS39Cbo9+rVZvyKNxHj/z8Kh+ l/ivk5e35L2eq1cUiomqhcus8m7vZ3edA0wEQbU4Z5p3oGBQcGb/5pe3NczjRjJ0oF1q 5OEcIXAxiREMU3DuiYkJCQE28hPMFf10/1/NtGLwlFGdLTseq8LwMM9hY9h8aKmkFAyB Xrvg==^M X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :thread-index:content-language; bh=u9iSrDj6VaHxbCoUFYZ7Zp0PHd/EPA66NRtYVeLn0+Q=; b=VvYSZ0dCKbTlD3JWsIM+c/IvKn4ODGwMBBDIlHSpKHVjLOX3bAQk5NLCdJgsVrHTH3 eX+fCHmwyIgoaa2bMZK45aURu0H/kELwUc4k/ToQ+MLikNLe7J1GEcDeG2R0Mzk6oOCs wX3JHFLfpK0shX+XRLiJju8Xmk+dFnPWZcQKYVEsBsSIG4y4LaOEE9NCCWcUfmlwqXIH CUBJ/xVHAvrA/Tc4krWhLgjR6M0m8pKM+hX0XvlEcQM9aNgFOzVUJDyM0AgW/hWvurNb fPqEgehT3b2YieMUR90+aYHybQddNGb0PSaD33ocmNb4jhNyuQIWx/B2niV/lRhd68Mm 2IaQ==^M X-Gm-Message-State: AGi0Pub1W8n/ZsL3XKsrqZB7wN3LxZgnRvleyGc7wO5LZcvfpihQoI5H tsYQUwckNuvUN4/JneVuDEGcKyPY^M X-Google-Smtp-Source: APiQypIGqpcSdvRH6NE1wbVeWc8EFZqdGP6OWn+bpMR2BCfPfi4m+swvYIadz5cfAuOe3TXSjYk1Jg==^M X-Received: by 2002:a37:9ad0:: with SMTP id c199mr26948945qke.472.1588093022024; Tue, 28 Apr 2020 09:57:02 -0700 (PDT)^M U-Received: from DESKTOP4CIJMB3 ([2804:14c:90:81be:7d50:c076:9537:75cb]) by smtp.gmail.com with ESMTPSA id w42sm14281733qtj.63.2020.04.28.09.57.00 for <dovecot(a)dovecot.org> (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 28 Apr 2020 09:57:01 -0700 (PDT)^M U-Thread-Index: AdYdffFdO2elBIGpSdyo3M9jdQ9BUQ==^M U-Content-Language: pt-br^M U-Content-Language: pt-br^M U-ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=dovecot.org; s=arc; t=1588093024; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: dkim-signature; bh=u9iSrDj6VaHxbCoUFYZ7Zp0PHd/EPA66NRtYVeLn0+Q=; b=Kfs/zrLFMMS+arGz8yJqX9KfjGpJWquL0QP4ccnziaPKOvpksDppuzM8snn/PS7bvhyiyr eDHKtsVFML1EME6QvvwTAbtUBDfaUN72KdIZsVSUs6raqIXWSNoXyIgH/1YmhSr1ClnY+E x5bNCnH/+rBbn0domw7lyZOLB672jMZsrz0qPOQekATrf7ISyFvwwXeWFO4PasT9R+F2Ci vlac2RY52IojdAiB7SF1E46WEhn6vVTnurM0z3G+lGSYI5UGQSKNkzfYAdyg7sXc1Bjd6f EV5zeNRkDyTpFbgIZWkT/VleWH3pKxzfboMpw6PZByMFJpo/+TgSJG/YiLY58A==^M U-ARC-Seal: i=1; s=arc; d=dovecot.org; t=1588093024; a=rsa-sha256; cv=none; b=grcJhp/zviK1BBKPNhz59Ktlw8wnbtBy/YamNS+vADIvfhbWKxTtQ+2MDQeri7sYFIjbG1 5wP5Ogs2mwF6BX4Ifjdv8Qj96FVD2RMcwVlv4xKH4gDoq/mJE9/lE0LJ2gouBBgt98dX54 itEhXRhSw+oe8bkMXljoV5GTVQEJeJaz5GAg35+XV/I1vbkFrrTVnUOw+JNKNSiFnBswk0 kxWaWOQXZTMJdg6WvKZ/Ru/iiaiiXzyG0q4gdU1Az8FQZ2HoXtZmjtvCOGw2gmXMmQn+Fi sMKbrvzDTeF8lS6L53ZVey0P2mAN172XsMXyaaCuZb7fQFyZvrCBNoXi5mV+TA==^M U-ARC-Authentication-Results: i=1; talvi.dovecot.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=QUqHsAo0; spf=pass (talvi.dovecot.org: domain of ricardomachini(a)gmail.com designates 2607:f8b0:4864:20::72e as permitted sender) smtp.mailfrom=ricardomachini(a)gmail.com^M X-BeenThere: dovecot(a)dovecot.org^M X-Mailman-Version: 2.1.15^M U-Precedence: list^M U-List-Id: Dovecot Mailing List <dovecot.dovecot.org>^M U-List-Unsubscribe: <https://dovecot.org/mailman/options/dovecot>, <mailto:dovecot-request@dovecot.org?subject=unsubscribe>^M U-List-Archive: <https://dovecot.org/pipermail/dovecot/>^M U-List-Post: <mailto:dovecot@dovecot.org>^M U-List-Help: <mailto:dovecot-request@dovecot.org?subject=help>^M U-List-Subscribe: <https://dovecot.org/mailman/listinfo/dovecot>, <mailto:dovecot-request@dovecot.org?subject=subscribe>^M U-Errors-To: dovecot-bounces(a)dovecot.org^M X-XP-NTP: 40^M ^M This is a multipart message in MIME format.^M ^M ------=_NextPart_000_078A_01D61D64.E4184820^M Content-Type: text/plain;^M charset="us-ascii"^M Content-Transfer-Encoding: 7bit^M ... ------------------------< snip snip snip >----------------------------- TIA. Bye. Michael. -- Michael Hirmke

2 1

doveadm sync backup from old to new server
by Gregory Sloop 15 May '20

15 May '20

So I've done quite a lot of searching on the list and on the web - and perhaps my google-fu is really bad - but I can't find any real recipes on how to sync mail from the old server to the new. As an FYI - the old server is a CPanel/WHM setup on a VPS. The new is mailcow - which uses docker. However, I don't think either of these platforms is what's causing the issue - but I'm certainly not sure of that. --- I've tried several things - but have lost track of all the things I've tried. This seemed like the best of all the things I've tried. This particular mailbox/user+domain is setup on both servers. doveadm backup -D -u mc-user(a)abc.net ssh root(a)abc.net -p2200 doveadm dsync-server -u cp-user(a)abc.net mc-user(a)abc.net is the MC/NEW mailbox/domain cp-user(a)abc.net is the CPanel/OLD user/domain account The SSH server of the remote system is running on port 2200. However when I try this, I get: WARNING: The WATCHDOG_NOTIFY_EMAIL variable is not set. Defaulting to a blank string. dsync-local(user(a)abc.net)<v44NFyRWvF5efgAAb6OASA>: Error: read(remote) failed: EOF (version not received) doveadm(user(a)abc.net): Fatal: execvp(ssh) failed: No such file or directory The process appears to hang, and a Ctrl+C stops it. I'd love to get pointed at a reasonable recipe on how to make this work. I don't really get/understand the docs much at all. [And either everyone else understands it just fine, and never thinks to write a document on how to do it - or, and I think this is a lot more likely - they're using something like imapsync to do it. I found numerous places where others were, essentially, "Dovecot's tool is way too complicated and I can't get it to work right, so I used imapsync." I suppose I should probably just do that too, but it does seem a shame to do that when the dovecot tool is almost certainly the best tool for the job, but I can't figure out how to use it.] If someone can help me grok what's going on, I'm glad to write it up for the list and or a blog entry so it's more accessible. TIA -Greg

3 14