- dovecot - dovecot.org

How to specify pattern for share folder using ACL vfile
by Adam Raszkiewicz 15 Apr '20

15 Apr '20

My `90-acl.conf` file looks like: plugin { #acl = vfile:/etc/dovecot/global-acls:cache_secs=300 #acl = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext acl = vfile } # To let users LIST mailboxes shared by other users, Dovecot needs a # shared mailbox dictionary. For example: plugin { #acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes acl_shared_dict = proxy::acl } When ACLs were set for particular mailbox I can see that dovecot-acl … [View More]

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Removal of metrics.dovecot.org
by Aki Tuomi 15 Apr '20

15 Apr '20

Hi! metrics.dovecot.org will be removed by end of April. It's not really used that much and it's not compatible with new style metrics. --- Aki Tuomi Open-Xchange oy

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got a listener on 993
by David Mehler 15 Apr '20

15 Apr '20

Hello, Before I get in to my question is ssl on 993 or starttls on 143 better from a security perspective? I've noticed that I've got a dovecot listener on port 993, below is my doveconf -n output I don't have an imaps listener uncommented should I do so and set it's port to 0? Will that disable the 993 listener? Thanks. Dave. # 2.3.10 (0da0eff44): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.10 (bf8ef1c2) # OS: FreeBSD 12.1-RELEASE-p2 amd64 # Hostname: hostname.example.com … [View More]auth_cache_size = 10 M auth_default_realm = example.com auth_mechanisms = plain login auth_realms = example.com dict { lastlogin = mysql:/usr/local/etc/dovecot/dovecot-last-login.conf } first_valid_gid = 2100 first_valid_uid = 2100 hostname = hostname.example.com imap_client_workarounds = delay-newhostname tb-extra-hostnamebox-sep tb-lsub-flags imap_idle_notify_interval = 1 mins last_valid_gid = 2100 last_valid_uid = 2100 lda_hostnamebox_autocreate = yes lda_hostnamebox_autosubscribe = yes lda_original_recipient_header = X-Original-To listen = xxx.xxx.xxx.xxx lmtp_rcpt_check_quota = yes log_timestamp = "%Y-%m-%d %H:%M:%S " hostname_access_groups = vhostname hostname_fsync = never hostname_gid = vhostname hostname_home = /var/vhostname/hostnameboxes/%d/%n hostname_location = dbox:~/hostname hostname_plugins = acl fts fts_lucene mail_log notify quota trash virtual welcome zlib mail_crypt hostname_privileged_group = vhostname hostname_server_admin = hostnameto:postmaster@example.com hostname_uid = vhostname managesieve_notify_capability = hostnameto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment hostnamebox date index ihave duplicate mime foreverypart extracttext spamtest spamtestplus virustest editheader imapflags notify imapsieve vnd.dovecot.imapsieve namespace { location = sdbox:/var/vhostname/public/:CONTROL=~/hostname/public:INDEX=~/hostname/public prefix = Public/ separator = / subscriptions = yes type = public } namespace { hidden = no list = yes location = hostnamedir:/var/vhostname/shared/office/.hostnamedir:CONTROL=~/.hostnamedir/control/office:INDEX=~/.hostnamedir/index/office prefix = shared/%%u/ separator = / subscriptions = yes type = shared } namespace inbox { inbox = yes location = hostnamebox Drafts { auto = subscribe special_use = \Drafts } hostnamebox Sent { auto = subscribe special_use = \Sent } hostnamebox Spam { auto = subscribe autoexpunge = 30 days special_use = \Junk } hostnamebox Trash { auto = subscribe autoexpunge = 30 days special_use = \Trash } prefix = separator = / type = private } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { acl = vfile:/usr/local/etc/dovecot/global-acls:cache_secs=300 fts = lucene fts_autoindex = yes fts_autoindex_exclude = \Junk fts_autoindex_exclude2 = \Trash fts_autoindex_exclude3 = \Spam fts_autoindex_max_recent_msgs = 80 fts_index_timeout = 90 fts_lucene = whitespace_chars=@. normalize no_snowball imapsieve_hostnamebox1_before = file:/var/vhostname/sieve/global/learn-spam.sieve imapsieve_hostnamebox1_causes = COPY imapsieve_hostnamebox1_name = Spam imapsieve_hostnamebox2_before = file:/var/vhostname/sieve/global/learn-ham.sieve imapsieve_hostnamebox2_causes = COPY imapsieve_hostnamebox2_from = Spam imapsieve_hostnamebox2_name = * last_login_dict = proxy::lastlogin last_login_key = # hidden, use -P to show it hostname_crypt_curve = prime256v1 hostname_crypt_global_private_key = # hidden, use -P to show it hostname_crypt_global_public_key = # hidden, use -P to show it hostname_crypt_save_version = 2 hostname_log_events = delete undelete expunge copy hostnamebox_delete hostnamebox_rename hostname_log_fields = uid box msgid size quota = count:User quota quota_exceeded_message = Storage quota for this account has been exceeded, please try again later. quota_grace = 10%% quota_rule2 = Trash:ignore quota_status_nouser = DUNNO quota_status_overquota = 552 5.2.2 hostnamebox is full quota_status_success = DUNNO quota_vsizes = true quota_warning = storage=100%% quota-exceeded 100 %u quota_warning2 = storage=95%% quota-warning 95 %u quota_warning3 = storage=90%% quota-warning 90 %u quota_warning4 = storage=85%% quota-warning 85 %u quota_warning5 = storage=75%% quota-warning 75 %u sieve = file:/var/vhostname/sieve/%d/%n/scripts;active=/var/vhostname/sieve/%d/%n/active-script.sieve sieve_before = /var/vhostname/sieve/global/spam-global.sieve sieve_extensions = +notify +imapflags +spamtest +spamtestplus +virustest +editheader sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.execute +vnd.dovecot.environment sieve_max_redirects = 30 sieve_max_script_size = 1M sieve_pipe_bin_dir = /usr/bin sieve_plugins = sieve_imapsieve sieve_extprograms sieve_spamtest_max_header = X-Spamd-Result: default: [[:alnum:]]+ \[-?[[:digit:]]+\.[[:digit:]]+ / (-?[[:digit:]]+\.[[:digit:]]+)\] sieve_spamtest_status_header = X-Spamd-Result: default: [[:alnum:]]+ \[(-?[[:digit:]]+\.[[:digit:]]+) / -?[[:digit:]]+\.[[:digit:]]+\] sieve_spamtest_status_type = score sieve_user_log = /var/vhostname/sieve/sieve_error.log sieve_virustest_status_header = X-Virus-Scan: Found to be (.+)\. sieve_virustest_status_type = text sieve_virustest_text_value1 = clean sieve_virustest_text_value5 = infected trash = /usr/local/etc/dovecot/trash.conf welcome_script = welcome %n postmaster@%d welcome_wait = yes } postmaster_address = postmaster(a)example.com protocols = imap lmtp sieve sendhostname_path = /usr/local/sbin/sendhostname service auth-worker { user = vhostname } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vhostname mode = 0666 user = vhostname } } service dict { unix_listener dict { mode = 0600 user = vhostname } user = root } service imap-login { inet_listener imap { port = 143 } process_min_avail = 1 } service imap { executable = imap } service lmtp { executable = lmtp unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { address = 172.16.21.3 port = 4190 } } service quota-status { client_limit = 1 executable = quota-status -p postfix unix_listener /var/spool/postfix/private/dovecot-quota { group = postfix mode = 0660 user = postfix } } service quota-warning { executable = script /usr/local/etc/dovecot/quota-warning.sh unix_listener quota-warning { group = vhostname mode = 0660 user = vhostname } user = vhostname } service stats { unix_listener stats-reader { group = vhostname mode = 0660 user = vhostname } unix_listener stats-writer { group = vhostname mode = 0660 user = vhostname } } service welcome { executable = script /usr/local/etc/dovecot/welcome.sh unix_listener welcome { user = vhostname } user = vhostname } ssl = required ssl_cert = </usr/local/etc/ssl/acme.sh/example.com/fullchain.crt ssl_cipher_list = EECDH+AESGCM:EDH+AESGCM ssl_curve_list = P-256 ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_options = no_ticket ssl_prefer_server_ciphers = yes userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { hostname_fsync = optimized hostname_plugins = acl fts fts_lucene hostname_log notify quota trash virtual welcome zlib hostname_crypt sieve } protocol lda { hostname_fsync = optimized hostname_plugins = acl fts fts_lucene hostname_log notify quota trash virtual welcome zlib hostname_crypt sieve } protocol imap { hostname_max_userip_connections = 20 hostname_plugins = acl fts fts_lucene hostname_log notify quota trash virtual welcome zlib hostname_crypt imap_acl imap_quota imap_sieve imap_zlib last_login quota welcome } protocol sieve { info_log_path = /var/log/dovecot/dovecot-sieve.log log_path = /var/log/dovecot/dovecot-sieve-errors.log } [View Less]

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replication_full_sync_interval
by Ivo 14 Apr '20

14 Apr '20

Default value for replication_full_sync_interval is 24 hours. How is it then possible to get doveadm replicator status results like this one username priority fast sync full sync success sync failed someuser none 24:23:39 24:23:39 24:23:37 - # doveconf -a | grep replication_full_sync_interval … [View More]

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Variable expansion in password field
by Simone Lazzaris 14 Apr '20

14 Apr '20

Hi list! I've recently updated a small dovecot cluster from 2.2.29 to 2.3.10. I've found an issue with variable expansion. My user/password database is on a mysql table, with password saved in plain text field. The cluster receives mail via lmpt and users fetch them via imap. On the 2.2.29 version, no issues. After the upgrade, I've found some lines in the log: Apr 14 14:36:05 archive-front1 dovecot: lmtp(19671, fakeusername(a)fakedomain.com) Error: lmtp-server: conn 212.183.164.212:… [View More]

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%d ignored from auth-passwdfile.conf.ext configuration file
by Andrei Petru Mura 13 Apr '20

13 Apr '20

I try to configure dovecot with virtual users. I put my users file in folder /etc/dovecot/my_domain_name/users. My auth-passwdfile.conf.ext file looks like this: passdb { driver = passwd-file args = username_format=%n /etc/dovecot/%d/users } When I try to log in, I get this: dovecot: auth: Error: passwd-file(test,some.ip.addr.here,<rQT+ziijGE1tpoAB>): stat(/etc/dovecot//users) failed: No such file or directory As you can see, %d isn't interpreted. Why is this happening? Any hints? Thanks, Mura Andrei

2 3

Missing permissions
by Andrei Petru Mura 13 Apr '20

13 Apr '20

Hi, Dovecot version 2.2.36 In log files I get this error: dovecot: imap(test): Namespace '': mkdir(/home/mail/domain/test/Maildir) failed: Permission denied (euid=1005(vmail) egid=1005(vmail) missing +w perm: /home/mail/domain, UNIX perms appear ok (ACL/MAC wrong?)) My authentication configuration is this: passdb { driver = passwd-file args = username_format=%n /etc/dovecot/users } userdb { driver = static args = uid=vmail gid=vmail home=/home/mail/domain/%n username_format=%n /etc/… [View More]

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doveadm backup from gmail with imapc
by Ben Mulvihill 11 Apr '20

11 Apr '20

I am trying to backup a gmail account (not the one I am writing from) to dovecot, using doveadm-backup and imapc, but am having ssl connection problems. ted@expectation:~# doveadm backup -D -R -u ted imapc: dsync(ted): Info: imapc(imap.gmail.com:993): Connected to 74.125.71.108:993 (local 10.7.1.179:53852) dsync(ted): Warning: imapc(imap.gmail.com:993): Server disconnected unexpectedly: SSL_connect() failed: error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure: SSL alert … [View More]number 40 - reconnecting (delay 0 ms) dsync(ted): Info: imapc(imap.gmail.com:993): Connected to 74.125.71.109:993 (local 10.7.1.179:59052) dsync(ted): Error: imapc(imap.gmail.com:993): Server disconnected unexpectedly: SSL_connect() failed: error:14094410:SSL routines:ssl3_read_bytes:sslv3 alert handshake failure: SSL alert number 40 - disconnecting dsync(ted): Error: User initialization failed: imapc: Login to imap.gmail.com failed: Disconnected from serv I am using dovecot version 2.2.33.2 on ubuntu, with the configuration below. I have also enabled "allow access from unsecure apps" in my gmail settings. My first thought looking at the error messages was has that perhaps doveadm-backup was trying to connect with ssl3, which is no longer supported by gmail or anyone else nowadays. But apparently the ssl3_read_bytes function in openssl also handles tls, so the reference to ssl3 in the message is misleading, and the real problem must be elsewhere. If anyone can help me debug this I'd be grateful. Many thanks, Ben root@expectation:/etc/dovecot# doveconf -N # 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: Linux 4.15.0-91-generic x86_64 Ubuntu 18.04.4 LTS auth_mechanisms = plain imapc_features = rfc822.size gmail-migration fetch-headers imapc_host = imap.gmail.com imapc_password = # hidden, use -P to show it imapc_port = 993 imapc_ssl = imaps imapc_ssl_verify = no imapc_user = MY_GMAIL_ADDRESS mail_location = maildir:~/Maildir mail_prefetch_count = 20 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 { driver = pam name = } protocols = " imap" ssl = yes ssl_cert = </etc/dovecot/private/dovecot.pem ssl_cipher_list = ALL:!LOW:!SSLv2:!SSLv3:!EXP:!aNULL ssl_client_ca_dir = /etc/ssl/certs ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes ssl_protocols = !SSLv3 userdb { driver = passwd name = } [View Less]

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doveadm replicator command
by Ivo 09 Apr '20

09 Apr '20

Can someone please explain to me what do commands "doveadm replicator add" and "doveadm replicator remove" really do. According to https://wiki.dovecot.org/Tools/Doveadm/Replicator they "Add the specified user(s) to the replicator." and "Remove the specified user from replicator.". Do they really do that? Since the default list of users for replication comes from doveadm user '*' (https://wiki.dovecot.org/Replication) I tried removing one user (e.g. xyz) from replication by using "doveadm … [View More]

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doveadm backup into IMAP folder
by Gionatan Danti 09 Apr '20

09 Apr '20

Hi all, I am migrating a number of account from an old domain to a new one. I would like to store all imported email from the old domain under a specific IMAP folder. For example, if having test(a)domain.old, I would like to import all old email to test(a)domain.new/fromold. While I succeeded using doveadm backup / dsync to successfully replicate the old mailbox to the new one, I am unable to store all imported mail under a specific folder. So, I have some questions: - can the above be … [View More]

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alternatives for imapproxy
by Maciej Milaszewski 08 Apr '20

08 Apr '20

Hi System debian 8.11 and dovecot-2.2.36.4 My webmail is roundcube with imapproxy. I have one problem. My dovecot servers is are in a cluster with keepalived like: dovecot1----VIP-IP--------dovecot2 All works fine I have a problem with imapproxy when a server dovecot1 had a problem (kernel panic sic!) Keepalived works perfecty and moved VIP to dovecot2 - all works fine for normal users but imapproxy gave a timeout and webmail clinet cannot connect what do you recommend alternative to … [View More]

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Warning: Failed to do incremental sync
by Laura Smith 08 Apr '20

08 Apr '20

Setup dovecot sync along the lines of (https://wiki2.dovecot.org/Replication) I am doing one way replication. The initial full replication happened without issue, but now I'm seeing these errors on the slave server: doveadm: Warning: /data/mail/foo/bar/Maildir/dovecot-uidlist: Duplicate file entry at line 26397: 1562173159.M215923P17350.mxp,S=2290,W=2339 (uid 143128 -> 143142) Warning: Failed to do incremental sync for mailbox Sent Messages, retry with a full sync (Modseq 1766 no longer … [View More]

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Dovecot "User-Agent" equivalent
by Plutocrat 08 Apr '20

08 Apr '20

Hi, I was trying to debug an IMAP connection problem. The client accesses an account via webmail, mobile phone, and desktop. I was wondering if there was a way of determining which of these they were using at a given time. My googling turned up the following settings in the imap{} section: protocol imap { imap_id_log = * imap_id_send = "name" * "version" * } ... but setting these didn't seem to log any more information that I could use. Have I misunderstood the usage of these … [View More]

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\Noselect missing after deleting mailbox
by Onno Molenkamp 07 Apr '20

07 Apr '20

Hi, With mailbox_list_index enabled (which is the default), Dovecot won't return \Noselect when LISTing a mailbox that was deleted but still has subordinate mailboxes. Before creating such a mailbox in the first place, it does return \Noselect. 1 LIST "" Test 1 OK List completed (0.002 + 0.000 + 0.001 secs). 2 CREATE Test/Test 2 OK Create completed (0.014 + 0.000 + 0.014 secs). 3 LIST "" Test * LIST (\Noselect \HasChildren) "/" Test 3 OK List completed (0.001 + 0.000 secs). 4 CREATE Test 4 OK … [View More]

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Query change mdbox_rotate_size & mdbox_rotate_interval after sometime
by Durga Prasad Malyala 06 Apr '20

06 Apr '20

Hello All, If I change the mdbox_rotate_size to 100 MB & mdbox_rotate_interval to say 3 days after a year of usage what would be the impact on existing mails and new mails? Thanks/DP

1 1

replication and spam removal ("doveadm expunge")
by Olaf Hopp 06 Apr '20

06 Apr '20

Hello everybody, since now I did no replication and spam is delivered into users folder "spambox" Every night there is a cronjob which deletes spam older than 30 days via something like "find .... -ctime +30 -delete" Now I'm going to set up replication (two way) and I thought that doing "rm" is not a good idea. So I modified the job to something like /usr/bin/doveadm expunge -u test1 mailbox INBOX.spambox BEFORE 30d which works like intended, but I see that on the replication partner the … [View More]

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net_connect_unix(imap) failed
by Philipp Ewald 06 Apr '20

06 Apr '20

Hello everyone, we have a huge problem with dovecot and IMAP connections. we got the following errors: 39665 today dovecot: imap-login: Error: master(imap): net_connect_unix(imap) failed: Resource temporarily unavailable - http://wiki2.dovecot.org/SocketUnavailable (client-pid=29066, client-id=1755, rip=IP, created 562 msecs ago, received 0/4 bytes) we thinks this may be a problem with authorization take too long? Authorization is not local and with SQL. i found the following in source … [View More]code of Dovecot: #define SOCKET_CONNECT_RETRY_MSECS 500 #define SOCKET_CONNECT_RETRY_WARNING_INTERVAL_SECS 2 [...] i_error("master(%s): %s (client-pid=%u, client-id=%u, rip=%s, created %u msecs ago, received %u/%zu bytes)", This is no process limit problem: ps auxf | grep -c "[d]ovecot/imap$" 688 ps auxf | grep -c "[d]ovecot/imap-login$" 100 cat /proc/`pidof dovecot`/limits Limit Soft Limit Hard Limit Units Max cpu time unlimited unlimited seconds Max file size unlimited unlimited bytes Max data size unlimited unlimited bytes Max stack size 8388608 unlimited bytes Max core file size 0 unlimited bytes Max resident set unlimited unlimited bytes Max processes 64053 64053 processes Max open files 65535 65535 files Max locked memory 65536 65536 bytes Max address space unlimited unlimited bytes Max file locks unlimited unlimited locks Max pending signals 64053 64053 signals Max msgqueue size 819200 819200 bytes Max nice priority 0 0 Max realtime priority 0 0 Max realtime timeout unlimited unlimited us ulimit -n 1024 dovecot --version 2.3.4.1 (f79e8e7e4) protocols = imap pop3 service imap-login { process_min_avail = 4 service_count = 0 } service imap { process_limit = 4096 } service pop3-login { process_min_avail = 4 service_count = 0 } service pop3 { process_limit = 4096 } Can someone explain why we got this error and how to fix? If you need another information please tell me. -- Philipp Ewald Administrator DigiOnline GmbH, Probsteigasse 15 - 19, 50670 Köln E-Mail: philipp.ewald(a)digionline.de Web: www.digionline.de, www.webweaver.de AG Köln HRB 27711, St.-Nr. 5215 5811 0640 Geschäftsführer: Werner Grafenhain Informationen zum Datenschutz: www.digionline.de/ds [View Less]

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Panic due to assertion failure
by Bert JW Regeer 06 Apr '20

06 Apr '20

Hey all, I continue to receive the following messages every so often: dovecot[93817]: imap(xistence(a)0x58.com)<39982><>: Panic: file mail-storage.c: line 2122 (mailbox_get_open_status): assertion failed: (box->opened) dovecot[93817]: imap(xistence(a)0x58.com)<39982><>: Fatal: master: service(imap): child 39982 killed with signal 6 (core not dumped - https://dovecot.org/bugreport.html#coredumps) Even with core dumps enabled I haven't been able to get good … [View More]

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Disabling system users from mail
by Andrei Petru Mura 04 Apr '20

04 Apr '20

I'm using dovecot 2.2.36 on CentOS 7.7. My configurations are (dovecot -n): disable_plaintext_auth = no first_valid_uid = 1000 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 = } service auth … [View More]

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index problems after update
by Ajay Guleria 04 Apr '20

04 Apr '20

I Upgraded a server from Ubuntu 16.04 to Ubuntu 18.04. This includes an upgrade from dovecot 2.2.22 to 2.2.33.2. Sometimes it happens, that dovecot stops showing new mail. There is no error in the log, dovecot just seems to do his normal operations but is not delivering new emails from /var/mail/user (for some users only) emails are delivered again if I delete index-files from .imap folder. Ajay Guleria

1 0

Background operations
by Joan Moreau 03 Apr '20

03 Apr '20

Hello, Moving a large number of email from one folder to another does create timeout on roundcube, due to either a very very large number of emails or indexing process that increases the processing time. Would it make sense to have a background thread, to process orders asynchronously, instead of executing it on the spot ? For instance, orders (like moving or indexing or others) would be stored in a backlog instead of executing them in place, and then a background operation would process … [View More]

1 0

Sieve with links?
by ＠lbutlr 03 Apr '20

03 Apr '20

Is there any reason that a .active_sieve file would not load because it is a symbolic link? The target of the link is readable by the mail user, but instead of getting the trace for the .active_sieve file, I only get the trace for the default sieve file. -- 'Winners never talk about glorious victories. That's because they're the ones who see what the battlefield looks like afterwards. It's only the losers who have glorious victories.' --Small Gods

3 6

Disable Dovecot LDA
by Adam Raszkiewicz 02 Apr '20

02 Apr '20

Hi, Is there any way to disable Dovecot LDA? I want to always send email via postfix and relay server even it will be a local delivery within the Dovecot server Thanks, Adam

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auth service stops responding
by Michael Redert 02 Apr '20

02 Apr '20

Hi all, I am running postfix with dovecot configured for local mail delivery. Everything works as expected for a while, but after successfully delivering ~250 mails, dovecot does not accept requests anymore and mails start queueing up in the postfix mailqueue. After restarting dovecot, another ~250 mails are processed and the problem occurs again. The server is running ubuntu 18.04 with dovecot 2.2.33.2 and postfix 3.3.0 installed. Users are stored locally in /etc/dovecot/users. Based on the … [View More]log messages below and the output of netstat, it seems to me, that the auth service is not accepting any requests on the corresponding socket anymore. Any help is very much appreciated! Kind regards, Michael --- postfix error messages --- Mar 28 09:36:13 srv postfix/lmtp[3850]: 2423F7A21C: to=<system(a)mydomain.de>, relay=srv.mydomain.de[private/dovecot-lmtp], delay=155, delays=0.01/0/0/155, dsn=4.3.0, status=deferred (host srv.mydomain.de[private/dovecot-lmtp] said: 451 4.3.0 <system(a)mydomain.de>Internal error occurred. Refer to server log for more information. (in reply to RCPT TO command)) Mar 28 09:38:48 srv postfix/lmtp[3850]: 45A0C7A2B5: to=<system(a)mydomain.de>, relay=srv.mydomain.de[private/dovecot-lmtp], delay=308, delays=0.01/153/0.02/155, dsn=4.3.0, status=deferred (host srv.mydomain.de[private/dovecot-lmtp] said: 451 4.3.0 <system(a)mydomain.de>Internal error occurred. Refer to server log for more information. (in reply to RCPT TO command)) -- dovecot error messages --- Mar 28 09:36:13 lmtp(2631): user-lookup(system(a)mydomain.de)Error: userdb lookup(system(a)mydomain.de): Request timed out Mar 28 09:36:14 lmtp(2623): user-lookup(system(a)mydomain.de)Error: userdb lookup(system(a)mydomain.de): Request timed out Mar 28 09:38:48 lmtp(2631): user-lookup(system(a)mydomain.de)Error: userdb lookup(system(a)mydomain.de): Connecting timed out Mar 28 09:38:49 lmtp(2623): user-lookup(system(a)mydomain.de)Error: userdb lookup(system(a)mydomain.de): Connecting timed out Mar 28 09:41:23 lmtp(system(a)mydomain.de): Error: userdb lookup(system(a)mydomain.de): Connecting timed out Mar 28 09:41:24 lmtp(system(a)mydomain.de): Error: userdb lookup(system(a)mydomain.de): Connecting timed out --- relevant netstat output when dovecot hangs ---- root@srv:~# netstat | grep dovecot | sort unix 2 [ ] STREAM CONNECTED 1449174 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTED 1449995 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 2 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 3 [ ] STREAM CONNECTED 1468180 /var/run/dovecot/config unix 3 [ ] STREAM CONNECTED 1468267 /var/run/dovecot/config unix 3 [ ] STREAM CONNECTED 1468271 /var/run/dovecot/config unix 3 [ ] STREAM CONNECTED 1469651 /var/run/dovecot/config unix 3 [ ] STREAM CONNECTED 1470606 /var/spool/postfix/private/dovecot-lmtp unix 3 [ ] STREAM CONNECTED 1470614 /var/spool/postfix/private/dovecot-lmtp unix 3 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb unix 3 [ ] STREAM CONNECTING 0 /var/run/dovecot/auth-userdb --- dovecot configuration ---- root@srv:~# dovecot -n # 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) doveconf: Warning: SSLv2 not supported by OpenSSL. Please consider removing it from ssl_protocols. # OS: Linux 4.19.75-meson64 aarch64 Ubuntu 18.04.4 LTS auth_debug = yes auth_username_format = %n auth_verbose = yes debug_log_path = /var/log/dovecot-info.log default_client_limit = 16 default_process_limit = 32 first_valid_uid = 1000 hostname = mail.mydomain.de info_log_path = /var/log/dovecot-info.log lda_mailbox_autocreate = yes listen = * lock_method = dotlock log_path = /var/log/dovecot.log mail_debug = yes mail_fsync = always mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_privileged_group = mail mmap_disable = yes namespace { inbox = yes location = mailbox { special_use = \Drafts name = Drafts } mailbox { special_use = \Junk name = Junk } mailbox { special_use = \Sent name = Sent } mailbox { special_use = \Sent name = Sent Messages } mailbox { special_use = \Trash name = Trash } prefix = name = inbox } passdb { args = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } postmaster_address = postmaster(a)mydomain.de protocols = " imap lmtp pop3" service replication-notify-fifo { name = aggregator } service { client_limit = 102 unix_listener { mode = 00 path = anvil-auth-penalty } name = anvil } service auth-worker { user = root name = auth-worker } service { client_limit = 160 name = auth } service config { name = config } service dict-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } service { executable = imap-login -R rawlogs inet_listener { port = 0 name = imap } service_count = 0 vsz_limit = 256 M 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 { process_limit = 8 name = imap } service indexer-worker { name = indexer-worker } service indexer { name = indexer } service ipc { name = ipc } service { unix_listener { group = postfix mode = 0660 user = postfix path = /var/spool/postfix/private/dovecot-lmtp } name = lmtp } service log-errors { name = log } service { inet_listener { port = 0 name = pop3 } inet_listener { port = 0 name = pop3s } name = pop3-login } service { process_limit = 4 name = pop3 } service replicator-doveadm { name = replicator } service login/ssl-params { name = ssl-params } service stats-mail { name = stats } ssl = required ssl_cert = </etc/ssl/certs/srv.mydomain.de.pem ssl_cipher_list = ALL:HIGH:!SSLv2:!MEDIUM:!LOW:!EXP:!RC4:!MD5:!aNULL ssl_client_ca_dir = /etc/ssl/certs ssl_dh_parameters_length = 2048 ssl_key = # hidden, use -P to show it ssl_protocols = !SSLv2 !SSLv3 !TLSv1 userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } verbose_ssl = yes 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-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } 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 imap-master { 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 !indexer-worker { 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-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } 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 imap-master { 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-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } 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 imap-master { 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-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } 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 imap-master { 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 pop3 { 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-async { name = dict-async } service dict { name = dict } service login/proxy-notify { name = director } service dns-client { name = dns_client } service doveadm-server { name = doveadm } service imap-hibernate { name = imap-hibernate } 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 imap-master { 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 } } [View Less]

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"auth_cache_verify_password_with_worker = yes" does not work with proxy
by Theo Pannen 02 Apr '20

02 Apr '20

Hello, i use a proxy only configuration with version 2.2.22 (Ubuntu 16.04) and have now transferred it to version 2.3.10. This works as before. But as soon as i use "auth_cache_verify_password_with_worker = yes", it does not work anymore. The first login still works, but from the second one, where the answer comes from the cache, there is an error. The login is still accepted but dovecot searches the mailbox locally. The configuration for cache and proxy (from dovecot -n): … [View More]auth_cache_verify_password_with_worker = yes auth_cache_negative_ttl = 0 auth_cache_size = 64 M passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } The sql from /etc/dovecot/dovecot-sql.conf.ext: password_query = SELECT pwdCrypt AS password, \ NULL AS nopassword, \ 'MyMasterUser' AS master, \ 'MyMasterPass' AS pass, \ ipv4address AS host, \ '%u' AS destuser, \ 'Y' AS proxy \ FROM mailbox \ WHERE user = '%u' AND activeFlg = '1' LIMIT 1 The logfile extracts with "auth_cache_verify_password_with_worker = yes": - First Login from mail.log (work's) Apr 2 12:27:11 mf-19 dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=imap#011secured=tls#011session=6fZiPkyiWHJSZMhl#011lip=178.254.4.122#011rip=93.200.174.28#011lport=143#011rport=29272#011local_name=mf-19.1blu.de#011ssl_cipher=TLS_AES_128_GCM_SHA256#011ssl_cipher_bits=128#011ssl_pfs=KxANY#011ssl_protocol=TLSv1.3 Apr 2 12:27:11 mf-19 dovecot: auth: Debug: client passdb out: CONT#0111 Apr 2 12:27:11 mf-19 dovecot: auth: Debug: client in: CONT<hidden> Apr 2 12:27:11 mf-19 dovecot: auth: Debug: sql(testuser,93.200.174.28,<6fZiPkyiWHJSZMhl>): Performing passdb lookup Apr 2 12:27:11 mf-19 dovecot: auth: Debug: sql(testuser,93.200.174.28,<6fZiPkyiWHJSZMhl>): cache miss Apr 2 12:27:11 mf-19 dovecot: auth-worker(18978): Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth Apr 2 12:27:11 mf-19 dovecot: auth-worker(18978): Debug: Module loaded: /usr/lib/dovecot/modules/auth/lib20_auth_var_expand_crypt.so Apr 2 12:27:11 mf-19 dovecot: auth-worker(18978): Debug: Module loaded: /usr/lib/dovecot/modules/auth/libdriver_mysql.so Apr 2 12:27:11 mf-19 dovecot: auth-worker(18978): Debug: conn unix:auth-worker (pid=18976,uid=109): Server accepted connection (fd=16) Apr 2 12:27:11 mf-19 dovecot: auth-worker(18978): Debug: conn unix:auth-worker (pid=18976,uid=109): Sending version handshake Apr 2 12:27:11 mf-19 dovecot: auth-worker(18978): Debug: conn unix:auth-worker (pid=18976,uid=109): auth-worker<1>: Handling PASSV request Apr 2 12:27:11 mf-19 dovecot: auth-worker(18978): Debug: sql(testuser,93.200.174.28,<6fZiPkyiWHJSZMhl>): Performing passdb lookup Apr 2 12:27:11 mf-19 dovecot: auth-worker(18978): Debug: sql(testuser,93.200.174.28,<6fZiPkyiWHJSZMhl>): query: SELECT pwdCrypt AS password, NULL AS nopassword, 'MyMasterUser' AS master, 'MyMasterPass' AS pass, ipv4address AS host, 'testuser' AS destuser, 'Y' AS proxy FROM mailbox WHERE user = 'testuser' AND activeFlg = '1' LIMIT 1 Apr 2 12:27:11 mf-19 dovecot: auth-worker(18978): Debug: sql(testuser,93.200.174.28,<6fZiPkyiWHJSZMhl>): Finished passdb lookup Apr 2 12:27:11 mf-19 dovecot: auth-worker(18978): Debug: conn unix:auth-worker (pid=18976,uid=109): auth-worker<1>: Finished Apr 2 12:27:11 mf-19 dovecot: auth: Debug: sql(testuser,93.200.174.28,<6fZiPkyiWHJSZMhl>): Finished passdb lookup Apr 2 12:27:11 mf-19 dovecot: auth: Debug: auth(testuser,93.200.174.28,<6fZiPkyiWHJSZMhl>): Auth request finished Apr 2 12:27:11 mf-19 dovecot: auth: Debug: client passdb out: OK#0111#011user=testuser#011master=MyMasterUser#011pass=<hidden>#011host=10.1.2.3#011destuser=testuser#011proxy Apr 2 12:27:11 mf-19 dovecot: imap-login: proxy(testuser): started proxying to 10.1.2.3:143 (master MyMasterUser): user=<testuser>, method=PLAIN, rip=93.200.174.28, lip=178.254.4.122, TLS, session=<6fZiPkyiWHJSZMhl> - Further logins from mail.log (searches locally): Apr 2 12:27:18 mf-19 dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=imap#011secured=tls#011session=L4PQPkyi7plSZMhl#011lip=178.254.4.122#011rip=93.200.174.28#011lport=143#011rport=39406#011local_name=mf-19.1blu.de#011ssl_cipher=TLS_AES_128_GCM_SHA256#011ssl_cipher_bits=128#011ssl_pfs=KxANY#011ssl_protocol=TLSv1.3 Apr 2 12:27:18 mf-19 dovecot: auth: Debug: client passdb out: CONT#0111 Apr 2 12:27:18 mf-19 dovecot: auth: Debug: client in: CONT<hidden> Apr 2 12:27:18 mf-19 dovecot: auth: Debug: sql(testuser,93.200.174.28,<L4PQPkyi7plSZMhl>): Performing passdb lookup Apr 2 12:27:18 mf-19 dovecot: auth: Debug: sql(testuser,93.200.174.28,<L4PQPkyi7plSZMhl>): cache hit: <hidden>#011master=MyMasterUser#011pass=MyMasterPass#011host=10.1.2.3#011destuser=testuser#011proxy=Y Apr 2 12:27:18 mf-19 dovecot: auth: Debug: sql(testuser,93.200.174.28,<L4PQPkyi7plSZMhl>): cache: validating password on worker Apr 2 12:27:18 mf-19 dovecot: auth-worker(18978): Debug: conn unix:auth-worker (pid=18976,uid=109): auth-worker<2>: Handling PASSW request Apr 2 12:27:18 mf-19 dovecot: auth-worker(18978): Debug: conn unix:auth-worker (pid=18976,uid=109): auth-worker<2>: Finished Apr 2 12:27:18 mf-19 dovecot: auth: Debug: sql(testuser,93.200.174.28,<L4PQPkyi7plSZMhl>): Finished passdb lookup Apr 2 12:27:18 mf-19 dovecot: auth: Debug: auth(testuser,93.200.174.28,<L4PQPkyi7plSZMhl>): Auth request finished Apr 2 12:27:18 mf-19 dovecot: auth: Debug: client passdb out: OK#0111#011user=testuser Apr 2 12:27:18 mf-19 dovecot: auth: Debug: master in: REQUEST#011219414529#01118975#0111#011f78b3499f7157a5daf7eb2050cd79e60#011session_pid=18980#011request_auth_token Apr 2 12:27:18 mf-19 dovecot: auth: Debug: static(testuser,93.200.174.28,<L4PQPkyi7plSZMhl>): Performing userdb lookup Apr 2 12:27:18 mf-19 dovecot: auth: Debug: static(testuser,93.200.174.28,<L4PQPkyi7plSZMhl>): Finished userdb lookup Apr 2 12:27:18 mf-19 dovecot: auth: Debug: master userdb out: USER#011219414529#011testuser#011#011auth_mech=PLAIN#011auth_token=e6819f7eac20f6520440abd937322ff13618741f Apr 2 12:27:18 mf-19 dovecot: imap-login: Login: user=<testuser>, method=PLAIN, rip=93.200.174.28, lip=178.254.4.122, mpid=18980, TLS, session=<L4PQPkyi7plSZMhl> Apr 2 12:27:18 mf-19 dovecot: imap(testuser)<18980><L4PQPkyi7plSZMhl>: Debug: Added userdb setting: plugin/=yes Because it is pure proxy there is no userdb configuration and no local user. mail.err therefore contains the error message: Apr 2 12:27:18 mf-19 dovecot: imap(testuser)<18980><L4PQPkyi7plSZMhl>: Error: Couldn't drop privileges: User is missing UID (see mail_uid setting) - Further logins without "auth_cache_verify_password_with_worker = yes" works as expected: Apr 2 12:31:46 mf-19 dovecot: auth: Debug: client in: AUTH#0111#011PLAIN#011service=imap#011secured=tls#011session=9cvDTkyi7XxSZMhl#011lip=178.254.4.122#011rip=93.200.174.28#011lport=143#011rport=31981#011local_name=mf-19.1blu.de#011ssl_cipher=TLS_AES_128_GCM_SHA256#011ssl_cipher_bits=128#011ssl_pfs=KxANY#011ssl_protocol=TLSv1.3 Apr 2 12:31:46 mf-19 dovecot: auth: Debug: client passdb out: CONT#0111 Apr 2 12:31:46 mf-19 dovecot: auth: Debug: client in: CONT<hidden> Apr 2 12:31:46 mf-19 dovecot: auth: Debug: sql(testuser,93.200.174.28,<9cvDTkyi7XxSZMhl>): Performing passdb lookup Apr 2 12:31:46 mf-19 dovecot: auth: Debug: sql(testuser,93.200.174.28,<9cvDTkyi7XxSZMhl>): cache hit: <hidden>#011master=MyMasterUser#011pass=MyMasterPass#011host=10.1.2.3#011destuser=testuser#011proxy=Y Apr 2 12:31:46 mf-19 dovecot: auth: Debug: sql(testuser,93.200.174.28,<9cvDTkyi7XxSZMhl>): Finished passdb lookup Apr 2 12:31:46 mf-19 dovecot: auth: Debug: auth(testuser,93.200.174.28,<9cvDTkyi7XxSZMhl>): Auth request finished Apr 2 12:31:46 mf-19 dovecot: auth: Debug: client passdb out: OK#0111#011user=testuser#011master=MyMasterUser#011pass=<hidden>#011host=10.1.2.3#011destuser=testuser#011proxy Apr 2 12:31:46 mf-19 dovecot: imap-login: proxy(testuser): started proxying to 10.1.2.3:143 (master MyMasterUser): user=<testuser>, method=PLAIN, rip=93.200.174.28, lip=178.254.4.122, TLS, session=<9cvDTkyi7XxSZMhl> Apr 2 12:32:37 mf-19 dovecot: auth-worker(19036): Debug: conn unix:auth-worker (pid=19032,uid=109): Disconnected: Connection closed (fd=-1) Did I forget something in the configuration or is this a bug? Thanks Theo [View Less]

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[Dovecot] Postfixadmin/MySQL/Dovecot 2 and quota
by Matt 01 Apr '20

01 Apr '20

Hi all, I'm setting up a new email server based on the softwares list below: * Postfix * Dovecot 2.0.9 * MySQL * Postfixadmin 2.3.6 My current problem is I'm unsure whether quota feature is well configured or not. In order to test and validate, I use Roundcubemail GUI which provides percentage of the space used by the mailbox (quota should be applied per mailbox). Here, my dovecot configuration: dovecot.conf: dict { quotadict = mysql:/etc/dovecot/dovecot-dict-quota.conf } dovecot-… [View More]

7 20

sieve compile error
by Johannes Rohr 01 Apr '20

01 Apr '20

Dear all, I try to recompile my learn_ham.sieve script, which fails with the message root@ida:/etc/dovecot# sievec sieve-scripts/report-ham.sieve report-ham: line 1: error: require command: unknown Sieve capability `vnd.dovecot.pipe'.report-ham: line 1: error: require command: unknown Sieve capability `imapsieve'.report-ham: line 19: error: unknown command 'pipe' (only reported once at first occurrence).report-ham: error: validation failed.sievec(root): Fatal: failed to compile sieve script '… [View More]

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Re: limit for user exceeded
by Maciej Milaszewski 31 Mar '20

31 Mar '20

Hi I Dont understand or I im thinking wrong: process_limit = 25000 Older: #fs.inotify.max_user_watches= 8192 #fs.inotify.max_user_instances = 16384 New: fs.inotify.max_user_instances = 8192 fs.inotify.max_user_watches= process_limit x 2 + fs.inotify.max_user_instances fs.inotify.max_user_watches= 58192 On 31.03.2020 13:44, Aki Tuomi wrote: > I would prefer replies on the list... =) > > no. the idea is to *increase* the *current* value of fs.inotify.max_user_watches … [View More]

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mail_crypt crashing randomly during LMTP
by Andi Krischer 31 Mar '20

31 Mar '20

Hello everybody, hope you’re all well! We have a really strange bug with our dovecot setup. After weeks and month of debugging we’re finally reached the point when we ask you for help. Our basic setup is quite simple: a single dovecot 2.3.10 (0da0eff44) install on Debian 10 with LDAP as user/passdb and sieve, imap_sieve and mail_crypt as mail_plugins. For the mail_crypt we have a special rule which allows us to enable crypting for each user individually. See this line from dovecot-ldap.… [View More]conf.ext: pass_attrs = userPassword=password,=userdb_mail_plugins=%{if;%{real_lport};eq;993;imap_sieve;} %{if;%{real_lport};eq;143;imap_sieve;} notify mail_log %{if;%{ldap:encryptMail};eq;TRUE;mail_crypt; },=userdb_mail_crypt_private_password=%w As you can see for IMAP connections we enable imap_sieve and if the LDAP attribute “encryptMail” is set to TRUE we enable “mail_crypt” as mail_plugin. This works fine except that around 5-10 times a day the dovecot server crashes during a LMTP connection. It crashes in the last steps of LMTP which result that the mail get delivered to Maildir but Postfix doesn’t get a positive response and delivers the mail again after a few minutes. So all of our users get some mails twice or even more times. This is what the log says in the moment of crashing: dovecot: lmtp(53852): Panic: Module context mail_crypt_user_module missing *** backtrace *** (see: https://pastebin.com/YCiFtxmy) dovecot: lmtp(53852): Fatal: master: service(lmtp): child 53852 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) Here I’ve pasted the LTMP session in mail.log: https://pastebin.com/A4ughNUF Obviously it looks like it has something to do with our mail_crypt setup. But the thing is that although we’re monitoring this for months we cannot find a condition which cause this. It seems to happen more frequent for mails with lot of people in To or CC (large headers), but definitively not all of them… Some more things we’ve already thought on: First my guess was that the mail_crypt plugin isn’t loaded in some case but in the backtrace are things from “lib10_mail_crypt_plugin.so”, so it should be loaded, right? On the other hand a non-crashing LTMP session looks exactly the same in log except it has three additional lines in mail.log: Debug: Loading modules from directory: /usr/lib/dovecot/modules Debug: Module loaded: /usr/lib/dovecot/modules/lib15_notify_plugin.so Debug: Module loaded: /usr/lib/dovecot/modules/lib20_mail_log_plugin.so My college already had a look in the source code, but this didn’t make us much smarter. Here his references: mail context is defined here: https://github.com/dovecot/core/blob/81b5b188c478ec36bea8bda8fcad1e5f32ac61… and removed again here: https://github.com/dovecot/core/blob/81b5b188c478ec36bea8bda8fcad1e5f32ac61… Does any of the experts on this list have an idea what could cause these crashes and how to fix them? Thanks in advance! Best, Andi [View Less]

2 5

limit for user exceeded
by Maciej Milaszewski 31 Mar '20

31 Mar '20

Hi System debian 8.11 dovecot-2.2.36.4 and I have some warnings in log likes: Warning: Inotify watch limit for user exceeded, disabling. Increase /proc/sys/fs/inotify/max_user_watches cat /proc/sys/fs/inotify/max_user_watches 8192 in sysctl i change #fs.inotify.max_user_watches= 8192 #fs.inotify.max_user_instances = 16384 fs.inotify.max_user_watches= 16384 fs.inotify.max_user_instances = 24576 One questions - should these values be equal?

2 2

IMAP error
by Roy Lemmon 30 Mar '20

30 Mar '20

Hi, I am trying to setup a dovecot server on my laptop to serve my emails to emacs gnus. The emails are pulled from the mail server using isync into particular directories. I am using a Guix system. The dovecot service is running. I can telnet into it with: telnet localhost 143 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ STARTTLS AUTH=PLAIN] Dovecot ready. However if I then do: b select … [View More]

2 2

Panic/Assert dns-lookup.c
by tim＠linux-daus.de 30 Mar '20

30 Mar '20

Hi, currently we deploying Dovecot as imap/pop3 proxy. Every few minutes some panic/assert occurred (we connect roughly 7k - 8k user at one imap proxy with a connection rate of 200/s). We activate core dumps. Concerning the sensitive information in the dump we would prefer to not share the dump (e.g. i found our ssl private key in the dump). Log/Stack trace: Mar 30 15:54:06 imap16 dovecot: auth: Panic: file dns-lookup.c: line 371 (dns_client_lookup_common): assertion failed: (param != NULL … [View More]&& *param != '\0') Mar 30 15:54:06 imap16 dovecot: auth: Error: Raw backtrace: #0 t_askpass[0x7f27a219b5f0] -> #1 backtrace_append[0x7f27a219b860] -> #2 backtrace_get[0x7f27a219b9c0] -> #3 i_syslog_error_handler[0x7f27a21a6840] -> #4 i_syslog_fatal_handler[0x7f27a21a6970] -> #5 i_fatal[0x7f27a20fc3b7] -> #6 dns_client_connect[0x7f27a216ffb0] -> #7 dns_client_lookup[0x7f27a21702a0] -> #8 auth_request_proxy_finish[0x55c930e9b200] -> #9 auth_request_handler_reply[0x55c930e9cee0] -> #10 auth_policy_check[0x55c930e93a10] -> #11 auth_request_success[0x55c930e9bcf0] -> #12 auth_request_verify_plain_callback_finish[0x55c930e9a650] -> #13 auth_request_verify_plain_callback[0x55c930e9a7a0] -> #14 authdb_ldap_deinit[0x7f279faa9f10] -> #15 db_ldap_result_iterate_deinit[0x7f279faa7f70] -> #16 io_loop_call_io[0x7f27a21c0490] -> #17 io_loop_handler_run_internal[0x7f27a21c1e20] -> #18 io_loop_handler_run[0x7f27a21c05c0] -> #19 io_loop_run[0x7f27a21c0810] -> #20 master_service_run[0x7f27a212d5b0] -> #21 main[0x55c930e8dd10] -> #22 __libc_start_main[0x7f27a14901f0] -> #23 _start[0x55c930e8e2c0] -> #24 [no start/end information] Mar 30 15:54:06 imap16 dovecot: auth: Fatal: master: service(auth): child 6133 killed with signal 6 (core dumped) Config: # 2.3.9.2 (844fc8246): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.9 (db4e9a2f) # OS: Linux 4.9.0-12-amd64 x86_64 Debian 9.12 # Hostname: imap16.domain.de auth_default_realm = domain.de auth_failure_delay = 0 auth_mechanisms = plain login cram-md5 auth_username_format = %{if;%d;eq;domain.de;%n(a)olddomain.de;%u} auth_verbose = yes base_dir = /var/run/dovecot/ default_client_limit = 4096 default_internal_user = pop default_process_limit = 400 default_vsz_limit = 1 G doveadm_password = # hidden, use -P to show it first_valid_uid = 48 import_environment = TZ last_valid_uid = 48 login_trusted_networks = 192.168.11.0/24 mail_gid = pop mail_plugins = " mail_log notify zlib quota" mail_uid = pop passdb { args = /etc/dovecot/conf.d/dovecot-ldap-domain-proxy.conf.ext driver = ldap result_failure = return-fail result_success = continue-ok } passdb { args = allow_real_nets=192.168.11.0/24 driver = static result_failure = continue-ok } passdb { args = /etc/dovecot/conf.d/dovecot-ldap-domain-protocol-deny.conf.ext driver = ldap result_failure = return-ok result_success = return-fail } passdb { args = /etc/dovecot/passdb-domain-ldap-cram.conf.ext driver = ldap mechanisms = CRAM-MD5 result_failure = continue-fail result_success = continue-ok } passdb { args = /etc/dovecot/passdb-domain-ldap.conf.ext driver = ldap mechanisms = LOGIN,PLAIN result_failure = return-fail result_success = continue-ok } plugin { mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size zlib_save = gz zlib_save_level = 6 } protocols = " imap pop3" service auth { unix_listener auth-client { group = dovecot_auth mode = 0660 user = $default_internal_user } } service doveadm { group = pop inet_listener { port = 12345 } user = pop } service imap-login { process_min_avail = 24 service_count = 0 } service pop3-login { process_min_avail = 24 service_count = 0 } ssl = required ssl_cert = </etc/ssl/certs/star_domain_de.crt ssl_cipher_list = ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-RSA-CAMELLIA128-SHA:DHE-RSA-CAMELLIA256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:CAMELLIA128-SHA:CAMELLIA256-SHA ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it verbose_proctitle = yes [View Less]

2 4

Namespace problem? duplicated folders...
by Gregory Sloop 30 Mar '20

30 Mar '20

I'm sure this is related to name-spaces, but for some reason [brain damage perhaps? :) ] I can't seem to figure out how to fix it. In TBird, for example, I have a folder tree that looks like this Inbox -| Folder-A Folder-B Folder-C Folder-A Folder-B Folder-C And Folder-A, Folder-B, Folder-C are the same folders, just shown twice. [In two different hierarchies.] I'm using mbox files to store mail. [If that matters.] Here's what I have in my conf files for namespace defs namespace { … [View More]

2 5

Re: Help with migration to Dovecot from raw files
by Stefano Antonelli 30 Mar '20

30 Mar '20

On 2020-03-28 23:54, Stefano Antonelli wrote: > I've attached my script in case it's helpful to anyone in a similar > situation. It took quite a bit of effort to get this right, highly > depends on the format of the original mailstore, and I've only tested > this on one smaller mailbox (<400 messages). And I wasn't concerned > with any client having to download everything again since this was a > fresh import. > > In any case, it worked for me. Err had a few … [View More]

1 0

Help with migration to Dovecot from raw files
by Stefano Antonelli 29 Mar '20

29 Mar '20

Hello list, I recently migrated to Dovecot from a very old version of IceWarp running on failing hardware running Windows XP. I had a lot of issues downloading mail through imap. What I have instead are the email files directly off the harddrive from IceWarp's mail store. I rearranged the mail files to look like a Dovecot maildir and tried to use these emails directly. Dovecot did not complain, but I ran into my first problem. The emails were out of order on the client side. None … [View More]of my imap clients store email. They all just fetch headers and download mail as it's required. So a resync is not a problem. I just can't figure out how and I don't know if the filenames are a problem. The files I'm working with have this format: 2020032512105639B0-000001000000D2D45079615C.imap The first part is the date and all the the filenames appear to be unique. Is it okay to leave them this way or should I rename them in the same fashion as Dovecot? If so, is there a tool I can use or do I need to write a script? If I have to write a script, could someone help me decipher this filename: 1585197800.M440284P10160.hostname,S=2812,W=2875:2,S I understand the first bit is a unix timestamp. I couldn't find out what M440284P10160 means or how I might create that number myself to use in a renaming script. Additionally, I'd like to customise the hostname without changing the machine's hostname and I understand that the S and W can also be omitted. I'm not using quotas. I couldn't find anywhere in the documentation where it talked about any configuration options for the filenames. Are there any or do I have to patch the source? I was also planning on directly backing up the email using rsync, but the changing filenames with flags is obviously an issue. I understand that dovecot can store flags in a file instead, if the mailbox is shared or public. Is there any way to have this behaviour with a private mailbox? Ideally the filenames are not touched after creation in which case rsync will work nicely to my NAS. The last issue is that since Dovecot went live, I've started receiving mail. For the time being, I have left my "yet to be migrated" mail outside of maildir. So Dovecot doesn't know about it. I will need to merge this newly received mail with my "yet to migrated mail" once I sort out exactly how to migrate that mail. And I would really like all the mail to sort properly. From what I can tell doveadm is the tool for the job, but I just can't make sense of the documentation. Thanks, Stef Dovecot version: 2.3.4.1 (f79e8e7e4) [View Less]

2 3

managesieve user
by André Rodier 28 Mar '20

28 Mar '20

Hello, I am updating dovecot, from Debian Stretch to Buster, and I have an issue with the managesieve service: > Mar 28 15:05:06 mail dovecot[2637]: managesieve-login: Error: auth: > connect(login) in directory / failed: Permission denied > (euid=120(<getpwuid() error>) egid=128(<getgrgid() error>) missing +x > perm: /, we're not in group 127, dir owned by 0:127 mode=0770) > Mar 28 15:05:06 mail dovecot[2637]: managesieve-login: Error: auth: > connect(login) in … [View More]

2 2

Forward a copy
by ＠lbutlr 28 Mar '20

28 Mar '20

<https://wiki.dovecot.org/Pigeonhole/Sieve/Examples> has this example: if header :contains "subject" ["order", "buy"] { redirect "orders(a)company.xn--dom-9o0a; } Can I simply add fileinto :create “mailbox”; before that redirect line so that a COPY of the message is forwarded? And does redirect imply stop, since I don;’t see stop in the example. -- They say only the good die young. If it works the other way too I'm immortal

2 1

doveadm rebuild: Failed to add attachment keywords
by Patrick Ben Koetter 27 Mar '20

27 Mar '20

Greetings, I'm using the current dovecot release 2.3.10 and I try to rebuild mailboxes with broken attachment paths. When I run this command: doveadm rebuild attachments -u user(a)example.com ALL I runs fine for 6199 of 6223 messages and fails then at message 6200 with this message: doveadm(user(a)example.com): Error: Mailbox INBOX: UID=6200: read(attachments-connector(/MailStore/mail/mailboxes/CFEE0E67-6269-4AD3-8DED-6AB71A8E4BD7/dbox/mailboxes/INBOX/dbox-Mails/u.6200)) failed: read(/… [View More]MailStore/mail/attachment/b9/52/b952b91441e53d3bb57453af2df66bb003e551f4-e94b170ff8bb685e943f0000162bf795-5d0b3129034c8957284d00007dfcf92d-6200[base64:19 b/l]) failed: open(/MailStore/mail/attachment/b9/52/b952b91441e53d3bb57453af2df66bb003e551f4-e94b170ff8bb685e943f0000162bf795-5d0b3129034c8957284d00007dfcf92d-6200) failed: No such file or directory (read reason=) doveadm(user(a)example.com): Error: Mailbox INBOX: UID=6200: read(attachments-connector(/MailStore/mail/mailboxes/CFEE0E67-6269-4AD3-8DED-6AB71A8E4BD7/dbox/mailboxes/INBOX/dbox-Mails/u.6200)) failed: read(/MailStore/mail/attachment/b9/52/b952b91441e53d3bb57453af2df66bb003e551f4-e94b170ff8bb685e943f0000162bf795-5d0b3129034c8957284d00007dfcf92d-6200[base64:19 b/l]) failed: open(/MailStore/mail/attachment/b9/52/b952b91441e53d3bb57453af2df66bb003e551f4-e94b170ff8bb685e943f0000162bf795-5d0b3129034c8957284d00007dfcf92d-6200) failed: No such file or directory (read reason=) doveadm(user(a)example.com): Error: Mailbox INBOX: UID=6200: Failed to add attachment keywords: mail_get_parts() failed: Mailbox INBOX: UID=6200: read(attachments-connector(/MailStore/mail/mailboxes/CFEE0E67-6269-4AD3-8DED-6AB71A8E4BD7/dbox/mailboxes/INBOX/dbox-Mails/u.6200)) failed: read(/MailStore/mail/attachment/b9/52/b952b91441e53d3bb57453af2df66bb003e551f4-e94b170ff8bb685e943f0000162bf795-5d0b3129034c8957284d00007dfcf92d-6200[base64:19 b/l]) failed: open(/MailStore/mail/attachment/b9/52/b952b91441e53d3bb57453af2df66bb003e551f4-e94b170ff8bb685e943f0000162bf795-5d0b3129034c8957284d00007dfcf92d-6200) failed: No such file or directory (read reason=) 6200 error Assuming the attachments are still there, what would I need to do to 'fix' that? And if I can't fix it, can 'rebuild' skip the error and go on rebuilding the rest? TIA, p@rick -- [*] sys4 AG https://sys4.de, +49 (89) 30 90 46 64 Schleißheimer Straße 26/MG,80333 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer, Wolfgang Stief Aufsichtsratsvorsitzender: Florian Kirstein [View Less]

2 1

Deliver log with "msgid=?" when email come from Exchange/Office 365
by Alessio Cecchi 27 Mar '20

27 Mar '20

Hi, I noticed that all emails that come from Exchange/Office 365 have the message-id, in deliver log, reported as msgid=? <DBBPRDD0(a)DBBPR023.eurprd08.prod.outlook.com> instead of expected msgid=<DBBPRDD0(a)DBBPR023.eurprd08.prod.outlook.com> My deliver_log format is: deliver_log_format = deliverytime=%{delivery_time}, msgid=%m, sender=%e, from=%f, subject="%s": %$ The behaviour is the same on Dovecot 2.2 and 2.3, and only dovecot have the "?", we have a mail filter … [View More]

1 0

Not able to start dovecot
by Adam Raszkiewicz 26 Mar '20

26 Mar '20

Freshly compiled dovecot 2.3.9.3 on Centos 7 for some reason not able to start sudo systemctl status dovecot.service ● dovecot.service - LSB: Starts the Dovecot POP3/IMAP service Loaded: loaded (/etc/rc.d/init.d/dovecot; bad; vendor preset: disabled) Active: failed (Result: exit-code) since Wed 2020-03-18 16:32:17 UTC; 15s ago Docs: man:systemd-sysv-generator(8) Process: 2868 ExecStart=/etc/rc.d/init.d/dovecot start (code=exited, status=127) Mar 18 16:32:17 systemd[1]: Starting … [View More]

4 4

Understanding doveadm rebuild
by Patrick Ben Koetter 26 Mar '20

26 Mar '20

Greetings, I'm trying to understand if the doveadm rebuild command is suited to fix a problem we have on a customers platform. The customer uses sdbox in combination with SIS and for $REASONS dovecot cannot find the attachements anymore. They are there, but the references to them in the messages seem to be wrong. Is that what the rebuild subcommand has been made for? Will it e.g. scan the messages for attachment references and try to find them in the SIS storage location and then fix the … [View More]

1 0

At rest encryption (with protected crypto keys)
by Kees de Jong 25 Mar '20

25 Mar '20

Hi, As stated on the Dovecot documentation, at rest encryption is possible [1]. However, these keys are present on the system itself and are unprotected. Therefore, if a system is compromised, the attacker has access to the encrypted mail and the keys. There is no security benefit in that situation, except for hoping that the attacker doesn't understand that this is happening and how. Nextcloud does this a bit better. A key is used to encrypt user data as well [2]. However, that key is … [View More]

2 1

dovecot-2.2.36-4 and antispam
by Maciej Milaszewski 24 Mar '20

24 Mar '20

Hi I use dovecot-2.2.36.4 on Debian 8.11 and plugin dovecot-antispam from http://johannes.sipsolutions.net/Projects/dovecot-antispam All works fine but in roundcube i get two folder: Spam (real: Junk) and SPAM in sieve i have: require ["fileinto","imap4flags"]; # rule:[SPAM Box] if header :contains "X-Spam-Flag" "YES" { setflag "\\Seen"; fileinto "SPAM"; # ---> because dovecot-antispam need folder SPAM to teach spam or ham stop; } problem … [View More]

3 2

imapc quota support
by Сергей Петренко 24 Mar '20

24 Mar '20

Hi, I use Dovecot 2.3.9.2 as IMAP proxy for other mail server and configure it with imapc_host/imapc_port/imapc_user options. All works fine exclude quota information. Although my IMAP server supported quota Dovecot does not relay it to users. As I read in docs/MailboxFormat.imapc.txt in Dovecot v2.2.30+ there is a way to relay quota data to end users: Quota ----- Using the "imapc" quota backend allows asking for the quota from remote IMAP server (v2.2.30+). By default it uses GETQUOTAROOT … [View More]

1 0

Question on pop3
by ratatouille 23 Mar '20

23 Mar '20

Hello! Email is stored as plain textfile in /var/mail/andreas. I assume this is mbox-format. I get the following in the log telneting to localhost: 2020-03-22 20:21:10 imap(andreas(a)dualbit.de): Error: chdir(/var/spool/mail/andreas) failed: Not a directory 2020-03-22 20:21:10 imap(andreas(a)dualbit.de): Error: Namespace '': Mail storage autodetection failed with home=/var/spool/mail/andreas 2020-03-22 20:21:10 imap(andreas(a)dualbit.de): Info: Namespace '': Mail storage autodetection failed … [View More]

2 1

Problem with mail_uid
by ratatouille 23 Mar '20

23 Mar '20

Hello! I have problems fetching mail for a system user. In use is a passwd-file. If I set (for virtual users) mail_uid = vmail mail_gid = vmail in 10-mail.conf, I get permission denied. 2020-03-23 18:39:23 imap(andreas(a)dualbit.de): Error: chdir(/home/andreas/Maildir/) failed: Permission denied (euid=5000(vmail) egid=5000(vmail) missing +x perm: /home/andreas/Maildir, dir owned by 5006:5006 mode=0700) The mailbox has permissions drwx------. 9 andreas susers If I don't set mail_uid I get an … [View More]error because of missing mail_uid. I can only access the users mailbox if I set mail_uid = 5006 in 10-mail.conf On another system I don't haver this problem. I made diffs, read alot of stuff and can't find a solution. What is the way to go, please? I would like to know why this does not work. Below my doveconf -n # 2.2.36 (1f10bfa63): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.24 (124e06aa) # OS: Linux 3.10.0-1062.9.1.el7.x86_64 x86_64 CentOS Linux release 7.7.1908 (Core) # Hostname: dualbit1.dualbit.de auth_debug = yes auth_debug_passwords = yes auth_mechanisms = plain cram-md5 auth_verbose = yes auth_verbose_passwords = yes debug_log_path = /var/log/dovecot-debug disable_plaintext_auth = no first_valid_uid = 1000 listen = *,[::] log_path = /var/log/dovecot log_timestamp = "%Y-%m-%d %H:%M:%S " mail_gid = vmail mail_home = /home/%n/Maildir mail_location = maildir:~/ mail_plugins = " quota" mail_privileged_group = vmail mail_uid = 5006 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4fl ags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext 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 = /etc/dovecot-sql.conf driver = sql } passdb { args = scheme=CRYPT username_format=%u /etc/dovecot/users driver = passwd-file } plugin { quota = dict:user::file:/var/vmail/%d/%n/.quotausage sieve = file:~/sieve;active=~/.dovecot.sieve } 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 = 0666 user = vmail } user = root } service imap-login { client_limit = 1000 process_limit = 500 } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } ssl = required ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = # hidden, use -P to show it ssl_protocols = !SSLv3 userdb { driver = prefetch } userdb { args = /etc/dovecot-sql.conf driver = sql } userdb { args = username_format=%u /etc/dovecot/users driver = passwd-file } 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 = root@localhost } protocol lmtp { mail_plugins = quota sieve } Any help appreciated. Andreas [View Less]

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imapc master login for shared mailboxes
by Mark Zealey 21 Mar '20

21 Mar '20

Hi there, I'm trying to set up shared mailboxes such that any access to the shared namespace like INBOX/shared/<sub-email-address> will take <current-user> and use imapc to log in with <sub-email-address>*<current-user> (ie the current user is the master account for imapc). I've set up like https://wiki2.dovecot.org/SharedMailboxes/ClusterSetup on centos8 latest dovecot build (a late 2.2 series version I believe. However I'm running in to a couple of issues: 1) … [View More]

1 0

systemuser login
by ratatouille 20 Mar '20

20 Mar '20

Hello! I have one systemuser on my testsystem running CentOS. All other users live in a mysql- database. I created a /etc/dovecot/users file and use auth-passwdfile.conf.ext. andreas@dualbit.de:{CRAM-MD5}334bb91aad4fb976870535bbbd9f07db512fce13bc8f7b58f9dedca404a421aa:5006:5006::/var/spool/mail/andreas::userdb_mail=mbo x:/var/mail/andreas:INBOX=/var/mail/%u When I try to login via telnet I see in the logifle: 2020-03-20 14:40:01 auth: Debug: prefetch(andreas@dualbit.de,::1,<+… [View More]

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Director with dovecot 2.3 and Panic/Fatal error
by Alessio Cecchi 19 Mar '20

19 Mar '20

Hi, after the upgrade to Dovecot 2.3 for our director ring we found some times in the log errors like this: Mar 18 14:22:51 Panic: imap-login: file iostream-openssl.c: line 599 (openssl_iostream_handle_error): assertion failed: (errno != 0) Mar 18 14:22:51 Fatal: imap-login: master: service(imap-login): child 1726 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) Backend is still Dovecot 2.2.36 and Director is 2.3.10. I hope it can be fixed. … [View More]

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.dovecot.sieve.log/tmp failed: Not a directory
by mabi 19 Mar '20

19 Mar '20

Hello I am running Dovecot 2.3.9 for IMAP access with RainLoop webmail and have noticed for an account where I have some filters setup that I get the following error messages in the dovecot log file: Mar 17 19:02:50 mbox dovecot: imap(mail(a)domain.tld)<10511><ubAzvhCh1N2yxeu/>: Error: stat(/var/vmail/domain.tld/mail/.dovecot.sieve/tmp) failed: Not a directory Mar 17 19:02:50 mbox dovecot: imap(mail(a)domain.tld)<10511><ubAzvhCh1N2yxeu/>: Error: stat(/var/vmail/domain.… [View More]

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