- dovecot - dovecot.org

dovecot duplicate emails
by Битус Павел 10 Sep '19

10 Sep '19

Hello. I have problems with duplicate emails when using replication and configured message filters on the client. Looks like when letter comes, it processed by replication and immediately after this processed by filter on client and moved to another folder. When it arrives to slave server into INBOX, it replicated back to master into INBOX and only after that - slave receives MOVE command. The only thing I see in the log is that the letter comes 2 times with same msgid: Sep 10 15:01:31 lmtp(USERNAME(a)DOMAIN.com.ua)<9306><UD3fJJuQd11aJAAA8J4ONg>: Info: sieve: msgid=<f3701949-360e-e15d-3d76-7465f23fb0ba(a)DOMAIN.com.ua>: stored mail into mailbox 'INBOX' Sep 10 15:01:31 indexer-worker(USERNAME(a)DOMAIN.com.ua)<12248><UD3fJJuQd11aJAAA8J4ONg:GEsdNJuQd13YLwAA8J4ONg>: Info: Indexed 1 messages in INBOX (UIDs 55963..55963) Sep 10 15:01:32 imap(USERNAME(a)DOMAIN.com.ua)<9674><zqysnTGSU8tYUeJ+>: Info: copy from INBOX: box=INBOX.Jira, uid=5034, msgid=<f3701949-360e-e15d-3d76-7465f23fb0ba(a)DOMAIN.com.ua>, size=23393 Sep 10 15:01:32 imap(USERNAME(a)DOMAIN.com.ua)<9674><zqysnTGSU8tYUeJ+>: Info: expunge: box=INBOX, uid=55963, msgid=<f3701949-360e-e15d-3d76-7465f23fb0ba(a)DOMAIN.com.ua>, size=23393 Sep 10 15:01:32 indexer-worker(USERNAME(a)DOMAIN.com.ua)<12248><zqysnTGSU8tYUeJ+:oC6vHZyQd13YLwAA8J4ONg>: Info: Indexed 1 messages in INBOX.Jira (UIDs 5034..5034) Sep 10 15:01:33 indexer-worker(USERNAME(a)DOMAIN.com.ua)<12248><pQBKNpuQd13/OgAA8J4ONg:WIrkC52Qd13YLwAA8J4ONg>: Info: Indexed 1 messages in INBOX (UIDs 55964..55964) Sep 10 15:01:33 imap(USERNAME(a)DOMAIN.com.ua)<9674><zqysnTGSU8tYUeJ+>: Info: copy from INBOX: box=INBOX.Jira, uid=5035, msgid=<f3701949-360e-e15d-3d76-7465f23fb0ba(a)DOMAIN.com.ua>, size=23393 Sep 10 15:01:33 imap(USERNAME(a)DOMAIN.com.ua)<9674><zqysnTGSU8tYUeJ+>: Info: expunge: box=INBOX, uid=55964, msgid=<f3701949-360e-e15d-3d76-7465f23fb0ba(a)DOMAIN.com.ua>, size=23393 Sep 10 15:01:34 indexer-worker(USERNAME(a)DOMAIN.com.ua)<9417><zqysnTGSU8tYUeJ+:gKqSOJ2Qd13JJAAA8J4ONg>: Info: Indexed 1 messages in INBOX.Jira (UIDs 5035..5035) Can you help me with this problem? dovecot --version 2.3.7.2 (3c910f64b) dovecot -n # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.7.2 (7372921a) # OS: Linux 4.19.66-gentoo x86_64 Gentoo Base System release 2.6 # Hostname: leon.DOMAIN.com.ua auth_cache_negative_ttl = 30 secs auth_cache_size = 256 M auth_cache_verify_password_with_worker = yes auth_gssapi_hostname = $ALL auth_krb5_keytab = /etc/krb5.keytab auth_mechanisms = gssapi ntlm plain login cram-md5 digest-md5 auth_worker_max_count = 2048 debug_log_path = /var/log/dovecot/dovecot_debug.log default_client_limit = 8492 default_vsz_limit = 2 G dict { lastlogin = mysql:/etc/dovecot/dovecot-dict-sql-lastlogin.conf } doveadm_password = # hidden, use -P to show it first_valid_uid = 8 imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags listen = * log_path = /var/log/dovecot/dovecot.log mail_attribute_dict = file:%h/Maildir/dovecot-attributes mail_fsync = never mail_gid = mail mail_location = maildir:%h mail_max_keyword_length = 4096 mail_plugins = " notify replication zlib fts fts_solr mail_log notify" mail_uid = mail maildir_stat_dirs = yes 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_lazy_writes = no metric imap_commands { event_name = imap_command_finished } 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 { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } passdb { args = /etc/dovecot/dovecot-ldap-people.conf.ext driver = ldap } passdb { args = /etc/dovecot/dovecot-ldap-calendar.conf.ext driver = ldap } plugin { fts = solr fts_autoindex = yes fts_autoindex_max_recent_msgs = 100 fts_solr = url=http://SOLR_IP_ADDRESS:8983/solr/dovecot/ last_login_dict = proxy::lastlogin mail_log_cached_only = yes mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size mail_replica = tcp:REPLICATE.DOMAIN.com.ua:4092 replication_dsync_parameters = -d -N -l 30 -U replication_full_sync_interval = 7 days sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = /etc/dovecot/sieve/default.sieve sieve_before2 = /etc/dovecot/sieve/default_spam.sieve zlib_save = gz zlib_save_level = 9 } postmaster_address = root(a)DOMAIN.com.ua protocols = imap pop3 lmtp sieve replication_max_conns = 50 service aggregator { fifo_listener replication-notify-fifo { user = mail } unix_listener replication-notify { user = mail } } service auth { unix_listener auth-client { mode = 0660 user = mail } unix_listener auth-master { mode = 0600 user = mail } unix_listener auth-userdb { mode = 0600 user = mail } } service config { unix_listener config { mode = 0600 user = mail } } service dict { unix_listener dict { group = mail mode = 0600 user = mail } } service doveadm { inet_listener { port = 4092 } } service imap-login { process_min_avail = 8 service_count = 0 vsz_limit = 256 M } service imap { client_limit = 10 process_limit = 4096 process_min_avail = 50 service_count = 100 } service lmtp { process_limit = 70 process_min_avail = 20 } service managesieve-login { inet_listener sieve { port = 4190 } } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 0 } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { group = mail mode = 0660 } vsz_limit = 20 G } ssl_cert = </etc/ssl/my_certs/fullchain1.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } userdb { args = /etc/dovecot/dovecot-ldap-people.conf.ext driver = ldap } userdb { args = uid=mail gid=mail home=/home/DOMAIN.com.ua/%Ln username_format=%Ln(a)DOMAIN.com.ua mail=maildir:/home/DOMAIN.com.ua/%Ln:UTF-8 driver = static } protocol lmtp { auth_username_format = %Lu mail_fsync = optimized mail_plugins = " notify replication zlib fts fts_solr mail_log notify sieve" } protocol lda { mail_fsync = optimized } protocol imap { imap_idle_notify_interval = 5 mins imap_max_line_length = 4 M imap_metadata = yes mail_max_userip_connections = 2048 mail_plugins = " notify replication zlib fts fts_solr mail_log notify fts fts_solr last_login" } protocol sieve { managesieve_max_line_length = 65536 }

1 0

New to dovecot admin, question about testing a dovecot configuration
by Gerben Wierda 10 Sep '19

10 Sep '19

I am new to dovecot administration, not new to postfix administration. When setting up a new postfix/dovecot combo from scratch, can I start with dovecot alone and still be able to test it? E.g. can I address the local delivery agent with some sort of test email? If so, how? I haven’t been able to find it in the wiki. Gerben Wierda Chess and the Art of Enterprise Architecture <https://ea.rna.nl/the-book/> Mastering ArchiMate <https://ea.rna.nl/the-book-edition-iii/> Architecture for Real Enterprises <https://www.infoworld.com/blog/architecture-for-real-enterprises/> at InfoWorld On Slippery Ice <https://eapj.org/on-slippery-ice/> at EAPJ

1 0

Force dovecot-uidlist reset
by Tom Sommer 09 Sep '19

09 Sep '19

Is there a way to force Dovecot to rebuild dovecot-uidlist from zero? It seems deleting all indexes and dovecot-* files followed by "doveadm force-resync" is not enough? It just gets the same UIDs? Perhaps from Maildir filenames? But I would like to reset the uid of all mails. Thanks -- Tom

1 1

doveadm mailbox list
by Daniel Miller 08 Sep '19

08 Sep '19

It's quite likely I'm doing it wrong, but... Given a valid mailbox... doveadm mailbox list -u <username> realmb returns "realmb" doveadm mailbox list -u <username> real* returns "realmb" Seems reasonable. Now, with a non-existent mailbox... doveadm mailbox list -u <username> bogus returns "bogus" doveadm mailbox list -u <username> bogus* returns "" Is this a bug or correct behavior? -- Daniel

2 1

TLS not working with iOS beta?
by Henrik Johansson 08 Sep '19

08 Sep '19

Hi, Have anyone else experienced problems using Dovecot with the mail app in beta releases of iOS/iPadOS 13? TLS is failing for my, it have worked fine for years and I am on the latest Dovecot version now, it works fine with older clients but not with the ones upgraded: Sep 04 19:49:16 imap-login: Debug: SSL: where=0x10, ret=1: before/accept initialization Sep 04 19:49:16 imap-login: Debug: SSL: where=0x2001, ret=1: before/accept initialization Sep 04 19:49:16 imap-login: Debug: SSL: where=0x2002, ret=-1: SSLv2/v3 read client hello A Sep 04 19:49:16 imap-login: Debug: SSL alert: where=0x4008, ret=552: fatal handshake failure Sep 04 19:49:16 imap-login: Debug: SSL: where=0x2002, ret=-1: error Sep 04 19:49:16 imap-login: Debug: SSL: where=0x2002, ret=-1: error Sep 04 19:49:16 imap-login: Debug: SSL error: SSL_accept() failed: error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher Sep 04 19:49:16 imap-login: Debug: SSL: where=0x2002, ret=-1: error Sep 04 19:49:16 imap-login: Debug: SSL error: SSL_accept() failed: error:140800FF:SSL routines:ssl3_accept:unknown state Sep 04 19:49:16 imap-login: Info: Disconnected (no auth attempts in 0 secs): user=<>, rip=11.22.33.44, lip=11.22.33.44, TLS handshaking: SSL_accept() failed: error:140800FF:SSL routines:ssl3_accept:unknown state, session=<lz7m2r2rjPouOvrk> Working client: Sep 04 19:57:58 imap-login: Debug: SSL: where=0x10, ret=1: before/accept initialization Sep 04 19:57:58 imap-login: Debug: SSL: where=0x2001, ret=1: before/accept initialization Sep 04 19:57:58 imap-login: Debug: SSL: where=0x2002, ret=-1: SSLv2/v3 read client hello A Sep 04 19:57:58 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 read client hello A Sep 04 19:57:58 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 write server hello A Sep 04 19:57:58 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 write certificate A Sep 04 19:58:01 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 write key exchange A Sep 04 19:58:01 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 write server done A Sep 04 19:58:01 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 flush data Sep 04 19:58:01 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 read client certificate A Sep 04 19:58:01 imap-login: Debug: SSL: where=0x2002, ret=-1: SSLv3 read client key exchange A Sep 04 19:58:01 imap-login: Debug: SSL: where=0x2002, ret=-1: SSLv3 read client key exchange A Sep 04 19:58:01 imap-login: Debug: SSL: where=0x2002, ret=-1: SSLv3 read client key exchange A Sep 04 19:58:01 imap-login: Debug: SSL: where=0x2002, ret=-1: SSLv3 read client key exchange A Sep 04 19:58:03 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 read client key exchange A Sep 04 19:58:03 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 read certificate verify A Sep 04 19:58:03 imap-login: Debug: SSL: where=0x2002, ret=-1: SSLv3 read finished A Sep 04 19:58:03 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 read finished A Sep 04 19:58:03 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 write change cipher spec A Sep 04 19:58:03 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 write finished A Sep 04 19:58:03 imap-login: Debug: SSL: where=0x2001, ret=1: SSLv3 flush data Sep 04 19:58:03 imap-login: Debug: SSL: where=0x20, ret=1: SSL negotiation finished successfully Sep 04 19:58:03 imap-login: Debug: SSL: where=0x2002, ret=1: SSL negotiation finished successfully Sep 04 19:58:03 imap-login: Info: Login: user=<username>, method=LOGIN, rip=11.22.33.44, lip=11.22.33.44, mpid=28781, TLS, TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits), session=<LklR9r2Vtb4uOzra> Config: # egrep -v "^#|^$" 10-ssl.conf 10-auth.conf 10-ssl.conf:ssl = required 10-ssl.conf:ssl_cert = </path/to/fullchain.pem 10-ssl.conf:ssl_key = </path/to/privkey.pem 10-ssl.conf:ssl_dh = </path/to/dh.pem 10-ssl.conf:ssl_min_protocol = TLSv1.1 10-ssl.conf:ssl_cipher_list = ALL:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH 10-auth.conf:disable_plaintext_auth = yes 10-auth.conf:auth_mechanisms = login 10-auth.conf:!include auth-system.conf.ext # dovecot --version 2.3.7.2 (3c910f64b) Anyone seeing something similar and/or have suggestions on how to proceed? Regards Henrik

4 7

intermittent failures when reuse_port is enabled
by Imre Rad 08 Sep '19

08 Sep '19

I'm encountering connection issues to Dovecot when reuse_port is activated. Some of the connections work fine, but about every 3rd of them does not receive the banner after the TCP connection has established: # nc -v 10.6.7.133 143 Connection to 10.6.7.133 143 port [tcp/imap2] succeeded! * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN] Hello. ^C # nc -v 10.6.7.133 143 Connection to 10.6.7.133 143 port [tcp/imap2] succeeded! * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN] Hello. ^C # nc -v 10.6.7.133 143 Connection to 10.6.7.133 143 port [tcp/imap2] succeeded! ^C The relevant processes listening on this port: # netstat -nap|grep 143 tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 15110/dovecot/imap- tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 15103/dovecot/imap- tcp 5 0 0.0.0.0:143 0.0.0.0:* LISTEN 15100/dovecot After removing the reuse_port = yes configuration directive there is only one single process listening (and the service is running without any issues): # netstat -nap|grep 143 tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN 15292/dovecot The test config was Linux 4.9.0-4-amd64 on debian-stretch and dovecot-2.2.36.4 (compiled by me) running on a VM with 1 CPU core. If that matters, dovecot was started in a docker container but using the hosts's network namespace. What am I missing? Thanks, Imre

1 0

configure: error: fd passing is required for Dovecot to work
by zahn 06 Sep '19

06 Sep '19

Hello I changed our old gcc compiler from the version: gcc-4.1.2-13.fc6 to the newer one: gcc version 8.3.0 (GCC). Then I wanted to compile: Dovecot 2.3.7 and I get the following error with ./configure CPPFLAGS="-I/usr/local/openssl/include" \ LDFLAGS="-L/usr/local/openssl/lib" \ ./configure --prefix=/usr/local/dovecot \ --disable-static \ --with-ssl=openssl checking whether fd passing works... no configure: error: fd passing is required for Dovecot to work With the old Compiler configure works well. I couldn't find a solution on the Internet - can you help me ? -- Schöne Grüsse aus Oberdiessbach Martin Zahn Akadia AG Martin Zahn Software Ing. HTL Oracle Certificate Professional Information Technology Fichtenweg 10 CH-3672 Oberdiessbach Tel: +41 79 410 27 87 Web: www.akadia.com E-Mail: martin.zahn(a)akadia.com

3 2

Namespace structure
by Daniel Miller 06 Sep '19

06 Sep '19

Is the following "legal" for Dovecot? And...is this separation recommended or a bad idea? Particularly I'm asking about the "archives" namespace - I haven't actually implemented this yet and I'm checking before I break something. 10-mail.conf # Primary private namespace # Using sdbox for storage namespace inbox { type = private separator = / prefix = location = sdbox:/var/mail/%d/%n/sdbox inbox = yes hidden = no list = yes subscriptions = yes } # For long-term archival namespace archives { type = private separator = / prefix = Archives/ location = mdbox:/var/mail/%d/%n/Archives/mdbox subscriptions = no list = children } # Shared mailboxes mail_shared_explicit_inbox = yes namespace usershares { type = shared separator = / prefix = shared/%%n/ location = sdbox:/var/mail/%%d/%%n/sdbox subscriptions = no list = children } # Virtual mailboxes - for server-side searches namespace virtual { prefix = virtual/ separator = / location = virtual:/var/mail/%d/%n/virtual subscriptions = no list = children } -- Daniel

1 0

login failure after upgrade to dovecot 2.3.7.2
by MK 05 Sep '19

05 Sep '19

Hi List, after upgrading dovecot from version 2.2.33.2 to 2.3.7.2 I got a lot of error messages like the following if the process count of imap processes reaches nearly 1000 (~950 (there are a few pop-connections)). Sep 5 11:27:32 mailbox1 dovecot: imap-login: Internal login failure (pid=27728 id=116): user=<xxxx(a)xxxx.xx>, method=PLAIN, rip=x.x.x.x, lip=x.x.x.x, session=<qETa7cqRzpZV3IEw> Sep 5 11:27:33 mailbox1 dovecot: imap-login: Error: master(imap): net_connect_unix(imap) failed: Resource temporarily unavailable - http://wiki2.dovecot.org/SocketUnavailable (client-pid=27704, client-id=79, rip=x.x.x.x, created 511 msecs ago, received 0/4 bytes) Our setup consists of some servers with dovecot as proxy/redirector as frontend servers, redirecting the logged in users to the backend servers storing the mailboxes. OS is CentOS 6 on both server types. The backend server in question has usually ~ 2500 simultaneous imap connections. Before the update there where no problems. During the update I merged the old 2.2 config into the new 2.3 from the fresh installed binary (Repo from dovecot.org) As I found the failure above in the logfile I testet a lot, to figure out how to fix this, because for me it seemed to be some limit around 1000 connections/processes anywhere in the config. In the end I changed the default value of "default_client_limit" from ist default 1000 to 8192 and the problem was fixed for the moment. Now I'm trying to understand why this fixes the problem and what the difference is between 2.2 and 2.3. For me it seems like something changed in the architecture during the release change, but I didn't find anything. I looked into the release notes and also checked the differences beween the 2.2 and 2.3 default config values (using doveconf -d). Can anyone help? Here is the output of doveconf -n # 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.7.2 (7372921a) # OS: Linux 2.6.32-696.23.1.el6.x86_64 x86_64 CentOS release 6.10 (Final) auth_mechanisms = plain login default_client_limit = 8192 disable_plaintext_auth = no mail_location = mdbox:%h mail_plugins = quota 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 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 driver = sql } plugin { quota = dict:User quota::file:%h/dovecot-quota quota_warning = storage=90%% quota-warning 90 %u sieve = file:~/sieve;active=~/.dovecot.sieve zlib_save = gz zlib_save_level = 6 } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh protocols = imap pop3 lmtp sieve service imap-login { process_min_avail = 12 service_count = 0 } service imap { process_limit = 8192 } service lmtp { inet_listener lmtp { address = * port = 24 } } service pop3-login { process_min_avail = 12 service_count = 0 } service pop3 { process_limit = 1024 } service quota-warning { executable = script /scripts/quota.sh unix_listener quota-warning { user = vmail } user = vmail } ssl = no userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } verbose_proctitle = yes protocol lmtp { mail_plugins = quota zlib sieve } protocol imap { mail_max_userip_connections = 30 mail_plugins = quota zlib imap_quota } protocol pop3 { mail_plugins = quota zlib } greetings, Oliver

1 0

dsync and altpath on shared storage.
by Peter Mogensen 05 Sep '19

05 Sep '19

Hi, I was wondering... If one had mdbox ALT path set to a shared storage mount (say, on NFS) and one wanted to move a mailbox to a different host... I guess it in principle wouldn't be necessary to copy all the ALT storage through dsync, when the volume could just be mounted on the new host. Is there anyway for dsync to avoid moving Gigabytes of data for could just be "moved" by moving the mount? /Peter

2 6

Different passdb backends for different services
by lists＠mlserv.org 05 Sep '19

05 Sep '19

Hi, as Dovecot supports submission, which is the sending direction, I am interested to know, if I can configure a separate passdb backend just for submission. I habe LDAP attributes that differ sending or receiving permissions. It would be nice, if I had a second passdb backend just for submission, which has a LDAP filter for locking this service. Example for IMAP, POP3, Sieve: (&(mail=%s)(mailAllowIncoming=TRUE)) Example for Submission: (&(mail=%s)(mailAllowOutgoing=TRUE)) Use case is to lock compromised accounts that send spam. An operator can notify the account owner by placing a warning messegae into his/her mailbox. Is this possible? Thanks in advance Christian

3 9

Global ACL in SQL or LDAP possible?
by lists＠mlserv.org 04 Sep '19

04 Sep '19

Hi, Can global ACLs for public folders be stored in SQL or LDAP instead of a dovecot-acl file? I could only find something for shared folders, but not for public folders? Thanks in advance Christian

1 1

Server administration
by Aleksandr Mette 04 Sep '19

04 Sep '19

Dear Sirs, There is Postfix+Dovecot+Sogo installation in our company. I have attentively red Installation and Configuration Guide. However, I could not find some information. Could you give me an advise how to: 1. Add/remove e-mail address 2. Change user e-mail address password 3. Add user e-mail address into mail alias 4. Forward e-mail 5. List all users e-mails What is the best GUI interface for Dovecot administration? With kind regards, Alex

9 14

How are imap images supposed to be stored
by d.gentner＠m4ever.de 04 Sep '19

04 Sep '19

Hello. This is a question about the imap protocol, since I am having a hard time finding these things out, so I hope you guys can help me. We are using Dovecot to receive mails and having an issue with Thunderbird. Basically, we are running into this bug with a lot of people: https://bugzilla.mozilla.org/show_bug.cgi?id=216308. <https://bugzilla.mozilla.org/show_bug.cgi?id=216308> The gist of it is, that sometimes, when there is an image linked with the imap:// protocol in the mail, then Thunderbird wants to subscribe to the folder that contains this mail, but fails. If I pull the mail off the server, it also has that link in the raw mail. However, most mails store the images as a base64 code block. I have actually seen mails getting changed over night, from imap:// links to base64 code blocks, but I can't reproduce that. All computers are supposed to have the same Thunderbird version and they do. My questions right now are: * Speaking about the general imap/mail protocol, do mails store images as base64 or imap:// links. What is the standard here? * Is there anything we can do to prevent Thunderbird from running into this bug? We are using Dovecot 2.2.36.4 * What can cause an email getting changed over night or getting synced back with the base64 blocks? It was already read, when we ran into the issue. With best regards, Domeniko Gentner

2 1

Mailcrypt plugin private password
by info＠unkn0wn3d.com 04 Sep '19

04 Sep '19

Hello there, is there a way to make the mailcrypt plugin use the user's password or at least store it in a hashed value? I'm using a passwd file for authentication. I feel uncomfortable saving the private password in plaintext in that file. Regards

2 5

plugin for IMAP protocol to modifie any email
by Matthew Brown 04 Sep '19

04 Sep '19

is there a plugin or anyway I can modifie any email content ? I would like to change body text, headers, attachments

3 3

CVE-2019-11500: Critical vulnerability in Dovecot and Pigeonhole
by Aki Tuomi 04 Sep '19

04 Sep '19

Dear subscribers, we have been made aware of critical vulnerability in Dovecot and Pigeonhole. --- Open-Xchange Security Advisory 2019-08-14 Product: Dovecot Vendor: OX Software GmbH Internal reference: DOV-3278 Vulnerability type: Improper input validation (CWE-20) Vulnerable version: All versions prior to 2.3.7.2 and 2.2.36.4 Vulnerable component: IMAP and ManageSieve protocol parsers (before and after login) Report confidence: Confirmed Solution status: Fixed by Vendor Fixed version: 2.3.7.2, 2.2.36.4 Researcher credits: Nick Roessler and Rafi Rubin, University of Pennsylvania Vendor notification: 2019-04-13 Solution date: 2019-06-05 Public disclosure: 2019-08-28 CVE reference: CVE-2019-11500 CVSS: 8.1 (CVSS3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) Vulnerability Details: IMAP and ManageSieve protocol parsers do not properly handle NUL byte when scanning data in quoted strings, leading to out of bounds heap memory writes. Risk: This vulnerability allows for out-of-bounds writes to objects stored on the heap up to 8096 bytes in pre-login phase, and 65536 bytes post-login phase, allowing sufficiently skilled attacker to perform complicated attacks that can lead to leaking private information or remote code execution. Abuse of this bug is very difficult to observe, as it does not necessarily cause a crash. Attempts to abuse this bug are not directly evident from logs. Steps to reproduce: This bug is best observed using valgrind to see the out of bounds read with following snippet: perl -e 'print "a id (\"foo\" \"".("x"x1021)."\\A\" \"bar\" \"\000".("x"x1020)."\\A\")\n"' | nc localhost 143 Solution: Operators should update to the latest Patch Release. There is no workaround for the issue. --- Aki Tuomi Open-Xchange oy

8 14

Dovecot and Apple's Mail.app not playing nicely?
by Coy Hile 03 Sep '19

03 Sep '19

Hi all, Is there anything cute one has to take into account when using Dovecot with users of Apple’s Mail.app? Behavior I’m seeing is that if I delete or move messages via Webmail (Roundcube, Horde, or even ActiveSync via Mail.app on my phone), they do get moved or deleted. However, if I take the same actions in the desktop mail client, when logging in to the Webmail (or phone) app, I see the messages still seeming to be in the Inbox. Is this known behavior? A peculiarity in Apple Mail? -- Coy Hile coy.hile(a)coyhile.com

4 5

Re: Re: Quota count and clone questions
by Bratislav ILIC 03 Sep '19

03 Sep '19

Hi, I presume you figured this out after all this time, but in any case. Since quota_clone is not cumulative, it always inserts new record with actual quota, to be able to get correct results in postfixadmin one must: DROP TRIGGER mergequota2 ON quota2; And to prevent ERROR: duplicate key value violates unique constraint "quota2_pkey": CREATE FUNCTION public.clone_quota2() RETURNS trigger LANGUAGE plpgsql AS $$ BEGIN UPDATE quota2 SET bytes = NEW.bytes, messages = NEW.messages WHERE username = NEW.username; IF found THEN RETURN NULL; ELSE RETURN NEW; END IF; END; $$; And then: CREATE TRIGGER clonequota2 BEFORE INSERT ON quota2 FOR EACH ROW EXECUTE PROCEDURE public.clone_quota2() ; And finally just put: quota_clone_dict = proxy::sqlquota Hope this helps somebody trying to figure out this too. > I figured out that I can't just drop maintaining quota2 if I want > postfixadmin to report the quota status. > > I also figured out a way to run a test on my config guesses. I will try > to fit it in today, or tomorrow. But any advise to the questions below > are welcomed! > >>On 2/13/19 8:53 PM, Robert Moskowitz via dovecot wrote: >> all this almost reads like I can drop maintaining the quota2 table? >> >> From https://wiki.dovecot.org/Quota/Count >> >> mailbox_list_index = yes >> # Avoid spending excessive time waiting for the quota calculation to >> finish when >> # mails' vsizes aren't already cached. If this many mails are opened, >> finish the >> # quota calculation on background in indexer-worker process. Mail >> deliveries will >> # be assumed to succeed, and explicit quota lookups will return >> internal error. >> mail_vsize_bg_after_count = 100 >> >> seems to belong in 10-mail.conf. That is where those var are shown. >> >> But: >> >> >> plugin { >> # 10MB quota limit >> quota = count:User quota >> quota_rule = *:storage=10M >> >> # This is required - it uses "virtual sizes" rather than "physical >> sizes" for quota counting: >> quota_vsizes = yes >> } >> >> I am having problems with. Right now for quota I have: >> >> plugin { >> quota = dict:user::proxy::sqlquota >> trash = /etc/dovecot/dovecot-trash.conf.ext >> } >> >> How do I reconcile these two? >> >> Then for clone: https://wiki.dovecot.org/Plugins/QuotaClone >> >> how does: >> >> mail_plugins = $mail_plugins quota quota_clone >> plugin { >> quota_clone_dict = redis:host=127.0.0.1:port=6379 >> } >> >> get replaced with something for mysql? >> >> dovecot-sql.conf.ext: >> >> driver = mysql >> connect = host=/var/lib/mysql/mysql.sock dbname=postfix user=postfix >> password=$Postfix_Database_Password >> default_pass_scheme = $cryptsha-CRYPT >> # following should all be on one line. >> password_query = SELECT username as user, password, >> concat('/home/vmail/', maildir) as userdb_home, >> concat('maildir:/home/vmail/', maildir) as userdb_mail, 101 as >> userdb_uid, 12 as userdb_gid FROM mailbox WHERE username = '%u' AND >> active = '1' >> # following should all be on one line >> user_query = SELECT concat('/home/vmail/', maildir) as home, >> concat('maildir:/home/vmail/', maildir) as mail, 101 AS uid, 12 AS >> gid, CONCAT('*:messages=30000:bytes=', quota) as quota_rule FROM >> mailbox WHERE username = '%u' AND active = '1' >> >> and >> >> dovecot-dict-sql.conf.ext: >> >> connect = host=/var/lib/mysql/mysql.sock dbname=postfix user=postfix >> password=$Postfix_Database_Password >> map { >> pattern = priv/quota/storage >> table = quota2 >> username_field = username >> value_field = bytes >> } >> map { >> pattern = priv/quota/messages >> table = quota2 >> username_field = username >> value_field = messages >> } >> >> >> >> thanks

1 0

Dovecot 2.3.7 - char "-" missing
by Domenico Pastore 03 Sep '19

03 Sep '19

Hello, i have update dovecot from version 2.2.15 to 2.3.7.2. I have a problem with mine java software because there is a different response when open connection to doveadm. I need open socket to doveadm for get imap quota of a mailbox. With version 2.2.15: # telnet 192.160.10.4 924 Trying 192.160.10.4... Connected to 192.160.10.4. Escape character is '^]'. - With version 2.3.7.2: # telnet 192.160.10.3 924 Trying 192.160.10.3... Connected to 192.160.10.3. Escape character is '^]'. The difference is "-" character. The version 2.3.7 not respond with "-" character after opening the connection. Is it possible to add the character again with a parameter? Why did doveadm's answer change? Br Domenico

3 2

Segfault with error 4 in doveadm-server
by holger＠dehnhardt.org 03 Sep '19

03 Sep '19

I set up dovecot on two servers with replication enabled. The replication is over a vpn connection. I get massive segfaults from doveadm-server every few minutes. dmesg: doveadm-server[30030]: segfault at 0 ip 0000557fa16d2e62 sp 00007ffdcaafec50 error 4 in doveadm-server[557fa16a3000+41000] [486397.225636] Code: 40 03 4c 8d 3c c3 48 8d 44 24 18 48 89 44 24 08 0f 1f 84 00 00 00 00 00 49 8b bc 24 60 01 00 00 e8 e3 2a 00 00 48 89 44 24 18 <48> 8b 13 48 8d 35 c4 8d 00 00 48 89 c7 e8 2c 2b 00 00 31 c0 c6 45 mail.err dovecot: doveadm: Fatal: master: service(doveadm): child 29507 killed with signal 11 (core dumps disabled) I am absolutely unaware of how I can come to the cause of this error. Can anyone give me a hint? ----------------------------- Configuration: # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 5.1.14-xen x86_64 Debian 8.11 auth_debug = yes disable_plaintext_auth = no doveadm_password = xxxx doveadm_port = 4711 listen = * mail_access_groups = vmail mail_gid = vmail mail_home = /var/vmail/%d/%n mail_location = maildir:~/mail 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 ihave namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size mail_replica = tcp:backup-vpn.local:12345 sieve = ~/.dovecot.sieve sieve_after = ~/sieve/after sieve_before = ~/sieve/before sieve_default = /var/vmail/%d/default.sieve sieve_dir = ~/sieve } protocols = " imap sieve pop3" service aggregator { fifo_listener replication-notify-fifo { mode = 0666 user = vmail } unix_listener replication-notify { mode = 0666 user = vmail } } service auth { unix_listener auth-client { group = vmail mode = 0660 user = vmail } unix_listener auth-userdb { mode = 0666 user = vmail } } service config { unix_listener config { user = vmail } } service doveadm { client_limit = 1 idle_kill = 0 inet_listener { address = master-vpn.local port = 12345 } process_limit = 0 process_min_avail = 0 user = vmail } service replicator { client_limit = 0 drop_priv_before_exec = no idle_kill = 4294967295 secs process_limit = 1 process_min_avail = 0 service_count = 0 unix_listener replicator-doveadm { group = vmail mode = 0666 user = dovecot } vsz_limit = 8 G } ssl_cert = </etc/ssl/certs/xxx.cert ssl_key = </etc/ssl/private/xxx.key userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol sieve { managesieve_implementation_string = Dovecot Pigeonhole managesieve_max_line_length = 65536 } protocol lda { mail_plugins = " notify replication acl sieve" } protocol imap { mail_plugins = " notify replication acl" }

3 6

LMTP Post login script for acl_groups
by lists＠mlserv.org 03 Sep '19

03 Sep '19

Hi, I use a post login script for imap, to fetch acl groups from LDAP. Because Dovecot can only deal with a single value, which must be a comma seperated list of groups, I decided to use a post login script do deal with multi values in LDAP: This looks like this in LDAP: rnsMSACLGroup: admin rnsMSACLGroup: automx rnsMSACLGroup: amavis rnsMSACLGroup: postfix rnsMSACLGroup: dovecot rnsMSACLGroup: rspamd rnsMSACLGroup: powerdns rnsMSACLGroup: sogo rnsMSACLGroup: zabbix rnsMSACLGroup: dane-users rnsMSACLGroup: gentoo rnsMSACLGroup: openbsd My post login script looks like this: --------------------------------------------------------- #!/bin/sh BINDDN='cn=dovecot-postlogin,ou=people,ou=it,dc=roessner-net,dc=de' BINDPWFILE='/etc/dovecot/ldap-postlogin.secret' BASE='ou=people,ou=it,dc=roessner-net,dc=de' LDAPSEARCH="/usr/bin/ldapsearch" AWK="/usr/bin/awk" test -x ${LDAPSEARCH} || exec "$@" test -x ${AWK} || exec "$@" ACL_GROUPS=$( ${LDAPSEARCH} -LLL -ZZ -y ${BINDPWFILE} -xD ${BINDDN} -b ${BASE} "(rnsMSDovecotUser=${USER})" rnsMSACLGroup | \ grep rnsMSACLGroup | \ ${AWK} -vORS=, '{ print $2 }' | \ sed 's/,$/\n/' ) export ACL_GROUPS export USERDB_KEYS="${USERDB_KEYS} acl_groups" exec "$@" --------------------------------------------------------- This script is included in imap-postlogin executables and works for logged in users. But it does not work for LMTP. LMTP itself seems not to have any permissions to access the folders associated with these groups. I thought, I simply could add the imap-postlogin block to lmtp-postlogin and that would work, but it doesn't. So here is the question: What am I missing in Dovecot that LMTP can also have ACL_GROUPS like the imap service? Here is my config (non-defaults): --------------------------------------------------------- doveconf -n # 2.3.7.1 (0152c8b10): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.7.1 (db5c74be) # OS: Linux 4.19.44-gentoo x86_64 Gentoo Base System release 2.6 # Hostname: mx.roessner-net.de auth_cache_size = 64 M auth_master_user_separator = * auth_mechanisms = plain login auth_ssl_username_from_cert = yes auth_verbose = yes default_client_limit = 5000 default_process_limit = 500 default_vsz_limit = 512 M disable_plaintext_auth = no hostname = mail.roessner-net.de imap_client_workarounds = tb-extra-mailbox-sep tb-lsub-flags imap_max_line_length = 4 M lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_rcpt_check_quota = yes login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c %k mail_access_groups = vmail mail_attachment_dir = /var/mail/virtual/copymail/attachments mail_gid = vmail mail_location = sdbox:~/sdbox mail_max_keyword_length = 4096 mail_plugins = quota acl fts fts_lucene zlib mail_log notify mail_privileged_group = mail mail_save_crlf = yes 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 vacation-seconds imapsieve vnd.dovecot.imapsieve mdbox_preallocate_space = yes mdbox_rotate_size = 128 M namespace { list = children location = sdbox:%%h/sdbox prefix = Shared/%%u/ separator = / subscriptions = no type = shared } namespace { hidden = no list = children location = maildir:/var/mail/virtual/public:INDEXPVT=~/Maildir/public prefix = Public/ separator = / subscriptions = no type = public } namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox "Deleted Messages" { special_use = \Trash } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk-E-Mail { special_use = \Junk } 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 = separator = / type = private } 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:/etc/dovecot/dovecot-acl:cache_secs=300 acl_shared_dict = file:/var/mail/virtual/shared-mailboxes.db fts = lucene fts_autoindex = yes fts_lucene = whitespace_chars=@. imapsieve_mailbox1_before = file:/etc/dovecot/sieve/rspamd.d/report-spam.sieve imapsieve_mailbox1_causes = COPY FLAG imapsieve_mailbox1_name = Junk imapsieve_mailbox2_before = file:/etc/dovecot/sieve/rspamd.d/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Junk imapsieve_mailbox2_name = * mail_log_events = delete undelete expunge copy save mailbox_create mailbox_delete mailbox_rename mail_log_fields = box msgid quota = count:User quota quota_grace = 10%% quota_rule = *:storage=300M:messages=20000 quota_rule2 = Trash:storage=+500M quota_rule3 = Sent:storage=+2G quota_rule4 = Archive:storage=+2G quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO quota_vsizes = yes quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u quota_warning3 = -storage=100%% quota-warning below %u sieve = file:~/sieve;active=~/.dovecot.sieve sieve_after = /etc/dovecot/sieve/after sieve_before = /etc/dovecot/sieve/before sieve_extensions = +vacation-seconds sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute +vnd.dovecot.debug sieve_pipe_bin_dir = /usr/bin sieve_plugins = sieve_imapsieve sieve_extprograms sieve_vacation_default_period = 10d sieve_vacation_max_period = 30d sieve_vacation_min_period = 1h zlib_save = gz zlib_save_level = 6 } protocols = imap pop3 lmtp submission sieve service auth-worker { extra_groups = ssl-cert unix_listener auth-worker { mode = 0600 user = vmail } user = vmail } service auth { extra_groups = ssl-cert unix_listener /var/spool/postfix-submission/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = vmail } service config { unix_listener config { mode = 0600 user = vmail } } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap-login { inet_listener imap { address = 127.0.0.1 134.255.226.248 ::1 2a05:bec0:28:1:134:255:226:248 } inet_listener imaps { port = 0 } } service imap-postlogin { executable = script-login /usr/local/bin/dovecot-masteruser.sh /usr/local/bin/dovecot-lastlogin.sh /usr/local/bin/dovecot-aclgroups.sh user = vmail } service imap { executable = imap imap-postlogin } service lmtp-postlogin { executable = script-login /usr/local/bin/dovecot-aclgroups.sh user = vmail } service lmtp { executable = lmtp lmtp-postlogin inet_listener lmtp { address = 127.0.0.1 port = 24 } unix_listener /var/spool/postfix/private/lmtp-dovecot { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { address = 127.0.0.1 134.255.226.248 ::1 2a05:bec0:28:1:134:255:226:248 } } service pop3-login { inet_listener pop3 { address = 127.0.0.1 134.255.226.248 ::1 2a05:bec0:28:1:134:255:226:248 } inet_listener pop3s { port = 0 } } service quota-status { client_limit = 1 executable = quota-status -p postfix inet_listener { address = 127.0.0.1 port = 12340 } } service quota-warning { executable = script /usr/local/bin/quota-warning.sh extra_groups = mail unix_listener quota-warning { group = vmail mode = 0600 user = vmail } user = vmail } ssl_cert = </etc/ssl/mail.roessner-net.de/cert/fullchain.pem ssl_cipher_list = ALL:!DH:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH ssl_client_cert = </etc/ssl/mail.roessner-net.de/cert/fullchain.pem ssl_client_key = # hidden, use -P to show it 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 submission_client_workarounds = whitespace-before-path submission_relay_host = mail.roessner-net.de submission_relay_port = 5870 submission_relay_ssl = starttls submission_relay_trusted = yes userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap } verbose_proctitle = yes protocol lmtp { mail_plugins = quota acl fts fts_lucene zlib mail_log notify sieve } protocol lda { mail_plugins = quota acl fts fts_lucene zlib mail_log notify sieve } protocol imap { mail_max_userip_connections = 50 mail_plugins = quota acl fts fts_lucene zlib mail_log notify imap_quota imap_acl imap_zlib imap_sieve } protocol submission { login_greeting = ESMTP } --------------------------------------------------------- Thanks for any help in advance Christian

3 15

dovecot 2.2 repo
by Bas van Rooijen 02 Sep '19

02 Sep '19

Hi, >From the v2.2.36.4 announcement message: "Binary packages are available at https://repo.dovecot.org/" My question is, where exactly? There's an instruction at repo.dovecot.org that tells you to replace 'ce-latest-2.3' with 'ce-<version>' but the given url doesn't even contain 'ce-latest-2.3' and http://repo.dovecot.org/ce-2.2.36 returns a 404. Thanks in advance! bvr.

4 3

Experimental docker images
by aki.tuomi＠dovecot.fi 02 Sep '19

02 Sep '19

Hi, you can now find experimental Docker images for dovecot CE releases (starting from 2.3.7.2) from https://hub.docker.com/r/dovecot/dovecot You can find instructions and more details on the repository page. ---- Aki

1 0

Re: Message delivered twice caused by an LMTP error "Got unexpected reply" during upgrade to 2.3
by Gabriele Nencioni 02 Sep '19

02 Sep '19

>>> On 08/09/2018 09:12 AM, Stephan Bosch wrote >>>>>> Can you make a pcap log of the LMTP communication between the two >>>>>> Dovecot hosts? That may give me a clue on which side of the >>>>>> communication is causing the issue. >>>>> Yes sure, where I can send it? >>>>> Here on list or at your address? >>>> >>>> Just send it to me. On 08/16/2018 10:21 AM, Stephan Bosch wrote: > Op 16/08/2018 om 09:46 schreef Gabriele Nencioni: >> On 08/15/2018 06:39 PM, Stephan Bosch wrote: >>> Op 15-8-2018 om 17:19 schreef Stephan Bosch: >>>> >>>> Op 13-8-2018 om 15:50 schreef Gabriele Nencioni: >>>>> So the scenario seems to be: >>>>> the error occurs between old directors and new backends >>>>> and between the new backends and the smtp submission_host (for >>>>> redirection) >>>>> and using the pipeline capability and attaching a file >>>>> >>>>> Let me know if you need more info >>>> In this case it is possible to obtain a debug log by enabling >>>> mail_debug=yes. Can you obtain a full debug log for such a failing >>>> submission session? >> Ok! It is attached. > > That is just weird. Dovecot reports that it cannot fully send the last > bits of the message and right thereafter the reply is received, which > Dovecot then interprets as out-of-sequence. The PCAP files tell me the > final CRLF.CRLF is actually sent to the other side, but somehow Dovecot > thinks it couldn't do that yet. > > Is this problem occurring for any and all SMTP client interactions, or > just every once in a while? Unfortunately it occurs just every once in a while and it is weird because at the second attempt the message is successful delivered or redirected. >>> Also, I don't see anything weird in the PCAP files: the command-reply >>> sequence is OK. This means that this is likely a bug in the current >>> Dovecot version. Those debug logs should tell me more. >> Ok! Which version of dovecot do you suggest to install? >> On debian current stable (stretch) repository there is the version >> number 2.2.27, have we to install it? > > If you're facing big trouble it is usually best to revert to the > previous version that worked I guess. Ok I'm agree! So, about you, which version can I try to install the 2.2.27 or the previous release of the 2.3 version such as v2.3.2 2018-06-29 or v2.3.1 2018-02-29? Regards, -- Gabriele Nencioni System Administrator eml gabriele.nencioni(a)register.it

2 6

purge causing reappearing mails?
by sch tel 02 Sep '19

02 Sep '19

3 3

flags not synced correctly with dovecot sync (dsync)
by Dan Christensen 31 Aug '19

31 Aug '19

I'm running dovecot 2.3.4.1 from https://repo.dovecot.org/ on Ubuntu 18.04 on three machines that I'll call server, laptop1 and laptop2. Both laptop1 and laptop2 run dovecot sync against server to keep local copies of my imap folders. Even when I initially had only two machines, laptop1 and server, I occasionally noticed that flags were lost, usually custom flags used by Gnus, but I couldn't reliably reproduce the problem. Now that I have two laptops syncing against the server, the problem has gotten worse and I figured out a way to reproduce it: - on server: create new IMAP folder test, and put two read messages in it - on laptop1: doveadm sync -u user -l 10 -m test -f user@server - on laptop2: doveadm sync -u user -l 10 -m test -f user@server At this point, all three machines show the two messages M1 and M2 as being read. - on laptop1: mark message M1 unread - on laptop2: mark message M2 unread - on laptop1: doveadm sync -u user -l 10 -m test -f user@server Both laptop1 and server have M1 unread, M2 read, as expected. - on laptop2: doveadm sync -u user -l 10 -m test -f user@server Now laptop2 and server have M1 *read*, M2 unread. - on laptop1: doveadm sync -u user -l 10 -m test -f user@server Now laptop1 and the server have both M1 and M2 *read*. - on laptop2: doveadm sync -u user -l 10 -m test -f user@server Now laptop2 has both read as well. The two lines that say "*read*" are wrong in my opinion. dsync propagated a read mark to an unread message, even though that message was marked unread more recently than it was marked read. I usually use stateful sync, and get many related problems. I just did a test in which M1 and M2 started out read, and I started with empty files named dstate.test on laptop1 and laptop2. Then I did the above procedure, using the command doveadm sync -u user -l 10 -m test -s "`cat dstate.test`" user@server > dstate.test At the end, laptop2 and server had both messages unread (which is good), but laptop1 had only M1 unread, and repeated runs of the sync command did not correct this. So the stateful sync failed to detect a change. Are these bugs in dovecot? Is there more information that I can provide? The output of doveconf -n on one machine is below, and the others are almost identical. Thanks for any help! Dan # 2.3.4.1 (3c0b8769e): /etc/dovecot/dovecot.conf # OS: Linux 4.15.0-45-generic x86_64 Ubuntu 18.04.1 LTS # Hostname: laptop2 auth_mechanisms = plain login listen = 127.0.0.1 mail_index_log2_max_age = 10 days mail_index_log_rotate_min_age = 1 days mail_index_log_rotate_min_size = 300 k mail_location = maildir:~/Maildir 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 = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } protocols = imap service imap-login { inet_listener imap { address = * port = 143 } inet_listener imaps { address = * port = 943 ssl = yes } } service imap { process_limit = 25 } 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 = username_format=%u /etc/dovecot/users driver = passwd-file } protocol lda { postmaster_address = [elided] } protocol imap { mail_max_userip_connections = 20 }

3 8

Sieve Header question.
by Larry Rosenman 31 Aug '19

31 Aug '19

I'm trying to make my github processing better, but I'm missing something. I have the following: if address :all :contains "from" ["github.com"] { addflag "github"; addflag "MyFlags" "github"; set "mailbox" "GitHub"; if address :matches :user "to" "*" { set "GHUser" "${1}"; addflag "${GHUser}"; addflag "MyFlags" "${GHuser}"; } if header :matches "List-ID" "(.*/.*) <(.*)>" { set "mailbox" "github-lists/${1}"; } fileinto :flags "${MyFlags}" :create "${mailbox}"; stop; } I'm trying to match the apache-incubator-superset part of: List-ID: apache/incubator-superset <incubator-superset.apache.github.com> What am I missing? -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 (c) E-Mail: larryrtx(a)gmail.com US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106

1 1

problems witch quota working
by Bartłomiej Solarz-Niesłuchowski 30 Aug '19

30 Aug '19

Good evening! Dear list I have problem with quota-fs (rquota) support with dovecot. I use dovecot version: dovecot --version 2.3.7.1 (0152c8b10) build options: dovecot --build-options Build options: ioloop=epoll notify=inotify openssl io_block_size=8192 SQL driver plugins: mysql postgresql sqlite Passdb: checkpassword ldap pam passwd passwd-file shadow sql Userdb: checkpassword ldap(plugin) passwd prefetch passwd-file sql the privatedevices is in service set as no: systemctl show -p PrivateDevices dovecot PrivateDevices=no but quota (rquota on nfsv4) does not work: doveadm quota get -u solarz \doveadm(solarz): Error: Failed to get quota resource STORAGE: quota-fs: quotactl(Q_GETQUOTA, oceanic:/home) failed: No such file or directory Quota name Type Value Limit % User quota STORAGE error error error quota from os works: quota solarz Disk quotas for user solarz (uid 1761): Filesystem blocks quota limit grace files quota limit grace /dev/mapper/vg01-lvol00 1588264 40480000 40480000 12383 0 0 oceanic:/home 76318340 86284030 87416830 561911 1190000 1650000 configuration: # OS: Linux 5.2.9-200.fc30.x86_64 x86_64 Fedora release 30 (Thirty) # Hostname: dervish.wsisiz.edu.pl auth_cache_size = 8 k mail_access_groups = mail mail_fsync = always mail_location = maildir:~/Maildir:INBOX=/var/spool/mail/%u mail_max_userip_connections = 500 mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = acl quota zlib trash 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 mbox_write_locks = fcntl 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 = } passdb { args = /etc/dovecot/deny-users deny = yes driver = passwd-file } passdb { args = cache_key=#hidden_use-P_to_show# max_requests=256 driver = pam } passdb { args = cache_key=#hidden_use-P_to_show# max_requests=256 driver = pam } plugin { quota = fs:User quota quota_grace = 10%% quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 Mailbox is full quota_status_success = DUNNO quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u sieve = file:~/sieve;active=~/.dovecot.sieve } postmaster_address = postmaster(a)wit.edu.pl protocols = imap pop3 service anvil { client_limit = 1155 } service auth { client_limit = 5248 user = root } service imap-login { client_limit = 1024 inet_listener imap { port = 0 } inet_listener imaps { address = [::], * port = 993 } process_limit = 1024 service_count = 0 } service imap { process_limit = 2048 vsz_limit = 512 M } service pop3-login { client_limit = 1024 inet_listener pop3 { port = 0 } inet_listener pop3s { address = [::], * port = 995 } process_limit = 128 service_count = 0 } service pop3 { process_limit = 2048 } service quota-warning { executable = script /usr/local/bin/quota-warning.sh user = dovenull } ssl = required ssl_cert = </etc/pki/tls/certs/ipop3d.pem ssl_cipher_list = PROFILE=SYSTEM ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd } userdb { driver = passwd } protocol imap { imap_client_workarounds = " tb-extra-mailbox-sep" mail_max_userip_connections = 200 mail_plugins = acl quota zlib trash imap_quota ssl_cert = </etc/pki/tls/certs/imapd.pem ssl_key = # hidden, use -P to show it } protocol pop3 { mail_max_userip_connections = 200 pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv ssl_cert = </etc/pki/tls/certs/ipop3d.pem ssl_key = # hidden, use -P to show it } Thank for any clues. Best Regards -- Bartłomiej Solarz-Niesłuchowski, Administrator WSISiZ e-mail: Bartlomiej.Solarz-Niesluchowski(a)wit.edu.pl tel. 223486547, fax 223486501 JID: solarz(a)jabber.wit.edu.pl 01-447 Warszawa, ul. Newelska 6, pokój 421, pon.-pt. 8-16 Motto - Jak sobie pościelisz tak sie wyśpisz

1 0

doveadm backup mdbox - initial copy slow
by Gerald Galster 30 Aug '19

30 Aug '19

Hello, when calling doveadm backup like in the following example, it seems to flush every email to disk maxing out harddrives (iops) and resulting in very poor performance: Calling doveadm -o plugin/quota= backup -u "statusmails(a)domain.com" "mdbox:/backup/vmail/domain.com/statusmails" finished in 212 secs [changes:1800 copy:1800 delete:0 expunge:0] The source mdbox holds 1800 small emails and uses about 20 MB disk space only. I've tried -f (full sync) and -l 30 (locking the mailbox) which did not get faster, nor did doveadm sync -1. When using doveadm import all mails are copied in less than 3 seconds: time doveadm -o mail=mdbox:/backup/vmail/domain.com/statusmails import mdbox:/var/vmail/domain.com/statusmails "" all real 0m2.605s Are there any other options I could try to speed up doveadm backup, avoiding the flush after each email? This is doveadm from dovecot 2.2 (>= 2.2.33). Does anyone get better results with 2.3 tree? Best regards Gerald

2 2

User / Pass SQL queries
by Michael Hallager 29 Aug '19

29 Aug '19

Hi all, Is there any reason Dovecot shows the 'user' variable (ie: user(a)domain.tld) being obtained in the password query and not the (more logical) user query? Thanks, Michael

2 1

permission issue after yum update
by Voytek Eymont 29 Aug '19

29 Aug '19

I've just updated my dovecot on centos, after 'yum update' dovecot failed to work, with manual restart it worked fine, just giving a warning: # dovecot Warning: Corrected permissions for login directory /var/run/dovecot/token-login dovecot --version 2.3.7.2 (3c910f64b) all's good, just reporting in case this is relevant to rpm maintainers thanks, V

1 0

download Dovecot
by Miquel Demur 29 Aug '19

29 Aug '19

I have downloaded in MacMini MacOS X applications directory the Dovecot.tzr.gz file from Dovecot v2.3.7.2 in https://www.dovecot.org/download I have clicked on dovecot-2.3.7.2 tar.gz and it creates a dovecot-2.3.7.2 directory containung 35 files. https://wiki2.dovecot.org/FrontPage?action=show&redirect=PageD%27Accueil#Do… https://wiki2.dovecot.org/FrontPage?action=show&redirect=PageD%27Accueil#Do… I have to compile to install in Terminal Application? ./configure make sudo make install in https://wiki2.dovecot.org/CompilingSource#Compiling_Dovecot_From_Sources without reference for dovecot.

2 1

Pigeonhole release v0.4.24.2
by Aki Tuomi 29 Aug '19

29 Aug '19

Hi! We are pleased to release Pigeonhole release v0.4.24.2 Tarball is available at https://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.24.2… https://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.24.2… Changes ------- * CVE-2019-11500: ManageSieve protocol parser does not properly handle NUL byte when scanning data in quoted strings, leading to out of bounds heap memory writes. Found by Nick Roessler and Rafi Rubin. --- Aki Tuomi Open-Xchange oy

2 2

Feature wishlist: Allow to hide client IP/host in submission service
by Sebastian Krause 28 Aug '19

28 Aug '19

Hi, In many mail setups a required feature (for privacy reasons) is to hide the host and IP of clients (in the "Received" header) that use the authenticated submission over port 587. In Postfix that's possible (https://serverfault.com/q/413533/86332) but not very nice to configure especially if you only want want to strip the Received header for port 587 submissions, but not on port 25. As far as I can see this configuration is not possible at all in the Dovecot submission server because the function which adds the Received header with the client's IP address (smtp_server_transaction_write_trace_record) is always called in submission-commands.c. It would be very useful if the submission server could anonymize the client with a single configuration option, then all the Postfix configuration mess (and using SASL) could be skipped by simply using the Dovecot submission server instead. The anonymization would work by replacing the client's EHLO host with "submission" and the IP address with 127.0.0.1. In full the Received header would look something like this where the first line is always the same: Received: from submission (unknown [127.0.0.1]) by mail.example.com with ESMTPSA id 8bV9D+51Yl1FOwAA1ctoJQ (envelope-from <john(a)example.com>) for <jane(a)example.com>; Sun, 25 Aug 2019 13:50:06 +0200 Sebastian

4 6

Pigeonhole release v0.5.7.2
by Aki Tuomi 28 Aug '19

28 Aug '19

Hi! We are pleased to release Pigeonhole release v0.5.7.2 Tarball is available at https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.7.2.… https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.7.2.… Binary packages are available at https://repo.dovecot.org/ Changes ------- * CVE-2019-11500: ManageSieve protocol parser does not properly handle NUL byte when scanning data in quoted strings, leading to out of bounds heap memory writes. Found by Nick Roessler and Rafi Rubin. --- Aki Tuomi Open-Xchange oy

1 0

Dovecot release v2.2.36.4
by Aki Tuomi 28 Aug '19

28 Aug '19

Hi! We are pleased to release Dovecot release v2.2.36.4 Tarball is available at https://dovecot.org/releases/2.2/dovecot-2.2.36.4.tar.gz https://dovecot.org/releases/2.2/dovecot-2.2.36.4.tar.gz.sig Binary packages are available at https://repo.dovecot.org/ Changes ------- * CVE-2019-11500: IMAP protocol parser does not properly handle NUL byte when scanning data in quoted strings, leading to out of bounds heap memory writes. Found by Nick Roessler and Rafi Rubin. --- Aki Tuomi Open-Xchange oy

1 0

Dovecot release v2.3.7.2
by Aki Tuomi 28 Aug '19

28 Aug '19

Hi! We are pleased to release Dovecot release v2.3.7.2 Tarball is available at https://dovecot.org/releases/2.3/dovecot-2.3.7.2.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.7.2.tar.gz.sig Binary packages are available at https://repo.dovecot.org/ Changes ------- * CVE-2019-11500: IMAP protocol parser does not properly handle NUL byte when scanning data in quoted strings, leading to out of bounds heap memory writes. Found by Nick Roessler and Rafi Rubin. --- Aki Tuomi Open-Xchange oy

1 0

unsubscrib
by Carlos Xavier 27 Aug '19

27 Aug '19

1 0

Group emails based on custom header
by Giovanni Mancuso 27 Aug '19

27 Aug '19

Hi, Can i "group by" e-mails based on custom header in imap? According to my experience if i use "XX UID SEARCH INTHREAD REFS HEADER myheader myvalue" i receive emails UID gathers by HEADER+VALUE, but in this way i need to fetch all emails using several imap SEARCH. Has dovecot any features that would help me do this? Thank you!!

2 1

doveadm mailbox handling for directory only
by sch tel 27 Aug '19

27 Aug '19

1 1

non-terminating processes
by Randy Bush 26 Aug '19

26 Aug '19

FreeBSD psg.com 11.3-RELEASE-p3 FreeBSD 11.3-RELEASE-p3 dovecot 2.3.6 (7eab80676) (latest from binary package system) symptom: multiple imap4s users complain that they can not fetch mail stopping and restarting dovecot is a temporary workaround dovenull 3713 0.0 0.0 11036 6816 - I 02:27 0:00.17 dovecot/imap-login user19 3714 0.0 0.0 9464 4756 - S 02:27 0:00.46 dovecot/imap dovenull 6261 0.0 0.0 11036 6812 - I 02:47 0:00.12 dovecot/imap-login dovenull 6262 0.0 0.0 11036 6804 - I 02:47 0:00.09 dovecot/imap-login dovenull 6263 0.0 0.0 11036 6804 - I 02:47 0:00.08 dovecot/imap-login user00 6264 0.0 0.0 9476 4924 - S 02:47 0:00.27 dovecot/imap user00 6265 0.0 0.0 9464 5444 - S 02:47 0:00.91 dovecot/imap user1 6266 0.0 0.0 9484 4636 - S 02:47 0:00.16 dovecot/imap dovenull 6277 0.0 0.0 11036 6804 - I 02:47 0:00.08 dovecot/imap-login user1 6279 0.0 0.0 9940 5096 - S 02:47 0:00.69 dovecot/imap dovenull 54595 0.0 0.0 11036 6916 - I 09:24 0:00.04 dovecot/imap-login dovenull 54596 0.0 0.0 11036 6916 - I 09:24 0:00.04 dovecot/imap-login user19 54597 0.0 0.0 9464 4784 - S 09:24 0:00.06 dovecot/imap user19 54598 0.0 0.0 9468 4676 - S 09:24 0:00.05 dovecot/imap dovenull 67450 0.0 0.0 11036 6924 - I 11:13 0:00.05 dovecot/imap-login userid0 67453 0.0 0.0 9488 4844 - S 11:13 0:00.05 dovecot/imap dovecot 68853 0.0 0.0 11484 6920 - S 11:29 0:00.32 dovecot/auth dovenull 74048 0.0 0.0 11036 6916 - I 12:15 0:00.03 dovecot/imap-login user54 74050 0.0 0.0 9552 4944 - I 12:15 0:00.02 dovecot/imap dovenull 74054 0.0 0.0 11036 6916 - I 12:15 0:00.03 dovecot/imap-login user54 74056 0.0 0.0 9492 5152 - I 12:15 0:00.06 dovecot/imap dovenull 74582 0.0 0.0 11036 6932 - S 12:20 0:00.07 dovecot/imap-login user19 74586 0.0 0.0 13572 7632 - S 12:20 0:04.14 dovecot/imap dovenull 74670 0.0 0.0 11036 6932 - S 12:21 0:00.05 dovecot/imap-login user01 74674 0.0 0.0 16768 6500 - S 12:21 0:02.33 dovecot/imap dovenull 74770 0.0 0.0 11036 6932 - S 12:21 0:00.05 dovecot/imap-login user01 74772 0.0 0.0 11500 5756 - S 12:21 0:00.08 dovecot/imap dovenull 74782 0.0 0.0 11036 6932 - I 12:21 0:00.04 dovecot/imap-login user01 74786 0.0 0.0 9460 5516 - I 12:21 0:00.05 dovecot/imap dovenull 74893 0.0 0.0 11036 6936 - I 12:22 0:00.04 dovecot/imap-login id0 74894 0.0 0.0 10644 5552 - S 12:22 0:00.05 dovecot/imap dovenull 74952 0.0 0.0 11036 6928 - I 12:23 0:00.03 dovecot/imap-login id0en 74954 0.0 0.0 9480 4900 - S 12:23 0:00.05 dovecot/imap dovenull 74958 0.0 0.0 11036 6916 - I 12:23 0:00.03 dovecot/imap-login id002 74959 0.0 0.0 9452 4756 - S 12:23 0:00.04 dovecot/imap dovenull 74961 0.0 0.0 11036 6916 - I 12:23 0:00.03 dovecot/imap-login id0 74962 0.0 0.0 9572 5088 - S 12:23 0:00.05 dovecot/imap dovenull 74964 0.0 0.0 11036 6916 - I 12:23 0:00.03 dovecot/imap-login id0 74966 0.0 0.0 9528 4892 - S 12:23 0:00.02 dovecot/imap dovenull 76400 0.0 0.0 11036 6916 - I 12:35 0:00.03 dovecot/imap-login user19 76401 0.0 0.0 9468 4804 - I 12:35 0:00.01 dovecot/imap root 76686 0.0 0.0 11484 7072 - S 12:38 0:00.37 dovecot/auth -w dovenull 77507 0.0 0.0 11036 6940 - I 12:45 0:00.16 dovecot/imap-login user5 77511 0.0 0.1 69164 12120 - I 12:45 0:00.49 dovecot/imap dovenull 78745 0.0 0.0 11036 6932 - S 12:56 0:00.05 dovecot/imap-login dovenull 78748 0.0 0.0 11036 6932 - S 12:56 0:00.06 dovecot/imap-login user5 78761 0.0 0.0 9476 5268 - S 12:56 0:00.12 dovecot/imap user5 78766 0.0 0.0 9492 5212 - S 12:56 0:00.12 dovecot/imap dovenull 78776 0.0 0.0 11036 6916 - S 12:56 0:00.03 dovecot/imap-login usr4 78777 0.0 0.0 9452 4564 - I 12:56 0:00.01 dovecot/imap root 88537 0.0 0.0 7940 1648 - Ss 00:51 0:04.00 /usr/local/sbin/dovecot -c /usr/local/etc/dovecot/dovecot.conf dovecot 88538 0.0 0.0 7880 1832 - S 00:51 0:01.04 dovecot/anvil root 88539 0.0 0.0 7880 1820 - S 00:51 0:00.86 dovecot/log dovenull 88540 0.0 0.0 11036 3992 - S 00:51 0:00.10 dovecot/imap-login root 88541 0.0 0.0 8008 3176 - S 00:51 0:04.18 dovecot/config dovecot 88542 0.0 0.0 7880 2592 - S 00:51 0:01.57 dovecot/stats dovenull 88544 0.0 0.0 11036 4088 - S 00:51 0:00.16 dovecot/imap-login dovenull 88545 0.0 0.0 11036 4064 - S 00:51 0:00.17 dovecot/imap-login dovenull 88546 0.0 0.0 11036 4016 - I 00:51 0:00.11 dovecot/imap-login user00 88547 0.0 0.0 9476 4156 - S 00:51 0:00.45 dovecot/imap usr9 88548 0.0 0.0 9460 4168 - S 00:51 0:00.49 dovecot/imap user1 88551 0.0 0.0 9452 3148 - S 00:51 0:00.22 dovecot/imap dovenull 88557 0.0 0.0 11036 4024 - I 00:52 0:00.11 dovecot/imap-login user17 88561 0.0 0.0 9472 3128 - S 00:52 0:00.22 dovecot/imap user17 88565 0.0 0.0 9472 3120 - S 00:52 0:00.23 dovecot/imap dovenull 88576 0.0 0.0 11036 3776 - I 00:52 0:00.18 dovecot/imap-login user19 88579 0.0 0.0 9604 2872 - S 00:52 0:00.40 dovecot/imap clues? just installing 2.3.7 from source to see if that helps randy

2 2

sometimes no shared cipher after upgrade from 2.2 to 2.3
by Kristijan Savic - ratiokontakt GmbH 23 Aug '19

23 Aug '19

We recently upgraded from dovecot 2.2 to 2.3.7.1-1 Not many, but some users are experiencing difficulties. The dovecot directors log: Aug 21 14:28:49 director01 dovecot: pop3-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=redacted, lip=10.0.0.120, TLS handshaking: SSL_accept() failed: error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher, session=<EeoTt5+QXwVUl87W> Any ide what could be causing it? Thanks, Kristijan

4 6

Trying to install Mailcrypt, receive completely blank emails
by sewing 22 Aug '19

22 Aug '19

Hi - perhaps someone can help me. Starting from a good and well-functioning mailserver setup, I have installed MailCrypt as per the instructions (I think) to have the per-user passworded keys setup. dovecot.conf /Added:/ mail_attribute_dict = file:%h/Maildir/dovecot-attributes mail_plugins = $mail_plugins mail_crypt dovecot-sql.conf.ext /commented this/ #password_query = SELECT email as user, password FROM virtual_users WHERE email='%u'; /Added this/ password_query = SELECT \ email as user, password, \ '%w' AS userdb_mail_crypt_private_password \ FROM virtual_users WHERE email='%u'; 90-plugin.conf /Updated this section/ plugin { mail_crypt_curve = secp521r1 mail_crypt_save_version = 2 /Have also tried all configurations this option set /#mail_crypt_require_encrypted_user_key = yes } /The user is in the mailserver SQL database:/ | user | password | userdb_mail_crypt_private_password | +----------------------+------------------------------------------------------------------------------------------------------------+------------------------------------+ | user@domain | 4t63ttt36tttttt3rt6r763r76t8998t858t4y48ht4huu4hti.76876t847t47yt4ty478yt4wgwygfwffweggggggggggwy8yey83//FElgiApZU. | %w /I have reissued the keys as other problem resolutions have instructed to do, and I can see the new keys are active./ doveadm -o plugin/mail_crypt_private_password=(same password as user@domain when created in SQL) mailbox cryptokey generate -u user@domain -UR /I have restarted dovecot and postfix each time./ /I then send an email either from the user@domain > user@domain OR otheruser@otherdomain > user@domain from Outlook. Authentication is fine (POP and SMTP). No errors appear in any logs - the logs show the mail as being received and I can see the mail in the user@domain /cur folder. If I try to Postcat any of these messages I get:/ postcat '1*********2.M**********3.(host),S=633,W=649:2,S' *** ENVELOPE RECORDS 1*********2.M*********3.(host),S=633,W=649:2,S *** message_size: YPTED postcat: fatal: invalid size record: YPTED??? */Within a minute or so I receive the email in the Outlook Inbox - except it is completely empty of anything. There is no TO / FROM/ SUBJECT / Body or even Routing information. See screencaps from Outlook/* <http://dovecot.2317879.n4.nabble.com/file/t5785/message_list_view.jpg> <http://dovecot.2317879.n4.nabble.com/file/t5785/empty-emails.jpg> /This happens with existing user mailboxes and new test mailboxes I create. If I deactivate Mailcrypt all mailboxes/user-accounts work fine. Any ideas??? I would like to get the working - thanks in advance for your expertise and time!/ Graham -- Sent from: http://dovecot.2317879.n4.nabble.com/

1 0

imapsieve suddenly not working anymore
by Thomas Stein 21 Aug '19

21 Aug '19

Hello one and all. Dovecot version 2.3.7.1 I've configured imapsieve like https://wiki.dovecot.org/HowTo/AntispamWithSieve a while a go and it worked for years now. Suddenly i noticed moving mails to the spamfolder does not trigger the report-spam.sieve script anymore. sieve-test gives: ~/.maildir/.Spam/cur $ sieve-test /usr/share/dovecot/sieve/report-spam.sieve 1542388745.M99384P16720.meine-oma.de\,S\=8173\,W\=8373\:2\,S -D sieve-test(himbeere): Debug: sieve: Pigeonhole version 0.5.7.1 (db5c74be) initializing sieve-test(himbeere): Debug: sieve: include: sieve_global is not set; it is currently not possible to include `:global' scripts. sieve-test(himbeere): Debug: sieve: Sieve imapsieve plugin for Pigeonhole version 0.5.7.1 (db5c74be) loaded sieve-test(himbeere): Debug: sieve: Sieve Extprograms plugin for Pigeonhole version 0.5.7.1 (db5c74be) loaded debug: file storage: Using Sieve script path: /usr/share/dovecot/sieve/report-spam.sieve. debug: file script: Opened script `report-spam' from `/usr/share/dovecot/sieve/report-spam.sieve'. debug: Script binary /usr/share/dovecot/sieve/report-spam.svbin successfully loaded. debug: binary save: not saving binary /usr/share/dovecot/sieve/report-spam.svbin, because it is already stored. report-spam: error: the imapsieve extension cannot be used outside IMAP. sieve-test(himbeere): Info: final result: failed; resolved with successful implicit keep ~/.maildir/.Spam/cur $ I'm not sure the "the imapsieve extension cannot be used outside IMAP" is the error already or thats only because the sieve-test script. Any ideas on that? cheers, t.

1 3

maildir very dirty sync option
by Yousif Alkhateeb 20 Aug '19

20 Aug '19

Hello , I have an active passive dovecot setup with glusterfs as a mail storage and using maildirs, we used to have a problem when users with large mailboxes sync their folders. This caused the load average to increase in the server , after a while we have enabled the very_dirty_sync option in dovecot , things got better and the problem disappeared but we need to know if there is any thing else that we need to do or know about the very_dirty_sync option that may cause future problems . Thanks in advance

3 2

Dovecot and Oauth
by Michael Hallager 20 Aug '19

20 Aug '19

Hi all, I am considering expanding a mail server to support Oauth with Google. I have read through the following: https://wiki.dovecot.org/PasswordDatabase/oauth2 however, it doesn't work and appears to me to be missing important information, the least of which is API authorisation. Searching with Google, I can't find any more information beyond what amounts to C&P'ing of the above link. Has anyone successfully deployed Oauth with Google and could they please send me their config files? Thanks, Michael

2 1

Dovecot and hard links?
by ＠lbutlr 18 Aug '19

18 Aug '19

I was looking at a mail folder and I noted that a file in the inbox had a total of 11 hard links to it: 👹 # exa -lH cur/1564249738.M167990P53982.mail.covisp.net,S=8572,W=8738:2,Sgl .rw------- 11 8.6k vpopmail 19 Jul 19:59 cur/1564249738.M167990P53982.mail.covisp.net,S=8572,W=8738:2,Sgl 👹 # find . -samefile cur/1564249738.M167990P53982.mail.covisp.net,S=8572,W=8738:2,Sgl [6:59] [/usr/local/virtual/kreme(a)kreme.com/Maildir] ./.Junk/cur/1564253637.M808919P50422.mail.covisp.net,S=8572,W=8738:2,bc ./.Junk/cur/1564253637.M808920P50422.mail.covisp.net,S=8572,W=8738:2,bc ./.Junk/cur/1564253723.M977674P50422.mail.covisp.net,S=8572,W=8738:2,bc ./.Junk/cur/1564253723.M977675P50422.mail.covisp.net,S=8572,W=8738:2,bc ./.Junk/cur/1564253723.M977676P50422.mail.covisp.net,S=8572,W=8738:2,bc ./.Junk/cur/1563587951.M591499P47868.mail.covisp.net,S=8572,W=8738:2, ./.Junk/cur/1564851795.M381461P10380.mail.covisp.net,S=8572,W=8738:2,bc ./.Junk/cur/1564851795.M381462P10380.mail.covisp.net,S=8572,W=8738:2,bc ./.Junk/cur/1564852369.M760020P10380.mail.covisp.net,S=8572,W=8738:2,bc ./.Trash/cur/1563587951.M591499P47868.mail.covisp.net,S=8572,W=8738:2,S ./cur/1564249738.M167990P53982.mail.covisp.net,S=8572,W=8738:2,Sgl A bit of background: a few weeks ago I had thousands of files in the mail store that had hundreds of links, and I got that all cleaned up through juggling some grep and awk to delete all but one of the linked files. I figured this was caused by something I’d done when I moved local users into being virtual users and eliminated pam authentication in favor of sql. But this gives me pause. I think it’s normal for a file in the INBOX that is marked as junk or as deleted to have a single hard link (or at least it is since the default was set to maildir_copy_with_hardlinks), but 11? And when do these hard links get cleaned off? If I delete the trashed and junked messages, when does dovecot go through and removed the linked files in the cur/ folder? (It’s not immediate, I trashed those copies in Junk and Trash and the original file is still in the cur folder) -- There is nothing so stupid that some person somewhere will not, with earnestness, say it.

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Re: Submission and TLS client certificate
by Christian Rößner 18 Aug '19

18 Aug '19

Hi, > Am 18.08.2019 um 16:52 schrieb Stephan Bosch via dovecot <dovecot(a)dovecot.org>: > > > >>> On 18/08/2019 10:09, Christian Rößner via dovecot wrote: >> Hi, >> is there some configuration parameter in Dovecot, which sends a TLS client certificate to the SMTP server? I would need this to have XCLIENT enabled and TLS with Postfix. This way I could permit sending based on the certificates fingerprint. > > Can you elaborate? Are you talking about the submission relay service or submission of outgoing messages from e.g. Sieve? The submission relay service. I like the idea of this service. Currently I did not activate the relay trust option, because I have no idea on how I could give permissions on the Postfix side. If Dovecot would send the certificate as reply to the smtpd_ask_ccert option, I could turn on XCLIENT in Dovecot and give permission based on the certificate fingerprint. At the moment I do STARTTLS from Dovecot to Postfix and have added Dovecot‘s IP to mynetworks in Postfix. But I would prefer XCLIENT. Thanks in advance Christian > > Regards, > > Stephan. > >> Thanks in advance >> Christian >> Von unterwegs aus gesendet >> -- >> Rößner-Network-Solutions >> Karl-Bröger-Str. 10, 36304 Alsfeld <x-apple-data-detectors://0/0> >> Fax: +49 6631 78823409 <tel:+49%206631%2078823409>, Mobil: +49 171 9905345 <tel:+49%20171%209905345> >> USt-IdNr.: DE225643613, https://roessner.website <https://roessner.website/> >> PGP Fingerprint: 8FB3 132F 85D8 C9C7 A9F1 9A3F 5183 D46C B885 897E

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Submission and TLS client certificate
by Christian Rößner 18 Aug '19

18 Aug '19

Hi, is there some configuration parameter in Dovecot, which sends a TLS client certificate to the SMTP server? I would need this to have XCLIENT enabled and TLS with Postfix. This way I could permit sending based on the certificates fingerprint. Thanks in advance Christian Von unterwegs aus gesendet -- Rößner-Network-Solutions Karl-Bröger-Str. 10, 36304 Alsfeld Fax: +49 6631 78823409, Mobil: +49 171 9905345 USt-IdNr.: DE225643613, https://roessner.website PGP Fingerprint: 8FB3 132F 85D8 C9C7 A9F1 9A3F 5183 D46C B885 897E

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