January 2018 - dovecot

[Dovecot] quota-status not working in distributed environment
by Benoit Panizzon 30 Jul '18

30 Jul '18

Hello List Quick overview of our set-up: Postfix / Dovecot (2.2.2.1) / MySQL Cluster on (at the moment) three Servers to create a HA environment where you could easily add additional servers as the demand or load grows. Circular dovecot replication is used so each server uses another one as replication partner and allowing one server to fail. Dovecot Proxy Feature being used, so we can use round-robin DNS and each server can forward the connecting user to the correct 'master' for his mailbox. So far, everything works as expected. Now we want to reject emails to 'full' mailboxes during SMTP to prevent backscatter and use the quota-status policy service from within postfix. That works fine, if the mailbox or it's replica is present on the machine where quota-status is called, but it fails if it's run on a machine where neither the mailbox or the replica is present. In our case, we get a correct SMTP 550 'Mailbox Full' Reject in two cases and a LMTP generated bounce in the later case. Also `doveadm quota get -u user(a)example.com` return the correct quota if run on the two machines which have the mailbox and it's copy locale, but return 0% used if run on the other machine. Is there a way to get quota-status to also use the proxy feature to request the quota information from the correct machine? Or is the postfix policy daemon call to the quota-status socket documented somewhere (it must be, but where?) so we could implement it from within the Milter? (we use the sendmail Milter API from postfix to filter spam and viruses, do sender/recipient rewriting, forward bounce matching, rate limmiting, login/IP statistics to block botnets abusing phished addresses and legal intercept stuff anyway) Kind regards Benoit Panizzon -- I m p r o W a r e A G - ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 07 CH-4133 Pratteln Fax +41 61 826 93 02 Schweiz Web http://www.imp.ch ______________________________________________________

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SIS: dovecot creates duplicated attachments (sometimes)
by Alexander Moisseev 20 Jul '18

20 Jul '18

SIS deduplication was broken in 2.2.16 and has been fixed with https://github.com/dovecot/core/commit/3b39022ea0513363241cf852b7d454c84158… but still sometimes (just several times in a month or so) dovecot creates duplicated attachments. As you can see in directory listings below all attachments was created at (about) the same time, but one of them has different inode number. It easy to discover using https://github.com/moisseev/doveadm-tools/blob/master/bin/dsisck # dsisck -n mail_uid=vmail mail_attachment_dir=/vmail/attachments ==> Checking SIS... # ln -f ./30/b3/30b367c584a123eee59478adf3e4f4c9e1226545-c56eae04a67c3157287f01003d96bafd ./30/b3/30b367c584a123eee59478adf3e4f4c9e1226545-7ad0a411d17c31572b7a01003d96bafd # mkdir -p -m 700 ./64/8f/hashes && ln ./64/8f/648f5cfa27af6d20c8570fdcaeab997663e15105-55430d2cd4432c571cb600003d96bafd ./64/8f/hashes/648f5cfa27af6d20c8570fdcaeab997663e15105 # ln -f ./6f/3f/6f3fa3e4d374a9c80d07af54960ce0e7adb2e0fe-b1935817ed753557546700003d96bafd ./6f/3f/6f3fa3e4d374a9c80d07af54960ce0e7adb2e0fe-72da1f32e38e3557947b00003d96bafd # ln -f ./dd/d9/ddd97aa6f624d4f54968d2c4956fc3a9d796b31b-6bf7c122fefb3157ad3500003d96bafd ./dd/d9/ddd97aa6f624d4f54968d2c4956fc3a9d796b31b-90fd1415e7e53157112800003d96bafd -------------------------------------------------------------- Unexpected objects found: 0 Attachments processed: 43500 Different attachments with similar hashes skipped: 0 Attachments deduplicated: 3 File system blocks freed up: 1800 Attachment deduplication attempts failed: 0 Hash files created: 1 Hash files creation attempts failed: 0 Hash files re-linked: 0 Hash files re-link attempts failed: 0 Orphaned hash files: 0 Invalid hash files (not a regular file): 0 -------------------------------------------------------------- # cd /vmail/attachments # ls -li ./30/b3/ ./30/b3/hashes/ ./30/b3/: total 1996 7464083 -rw------- 1 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-7ad0a411d17c31572b7a01003d96bafd 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-bb6eae04a67c3157287f01003d96bafd 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-bd6eae04a67c3157287f01003d96bafd 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-bf6eae04a67c3157287f01003d96bafd 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-c36eae04a67c3157287f01003d96bafd 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545-c56eae04a67c3157287f01003d96bafd 7464084 drwx------ 2 vmail vmail 512 May 10 09:16 hashes ./30/b3/hashes/: total 332 7464082 -rw------- 6 vmail vmail 337719 May 10 09:16 30b367c584a123eee59478adf3e4f4c9e1226545 # ls -li ./6f/3f/ ./6f/3f/hashes/ ./6f/3f/: total 644 15088414 -rw------- 1 vmail vmail 326656 May 13 11:23 6f3fa3e4d374a9c80d07af54960ce0e7adb2e0fe-72da1f32e38e3557947b00003d96bafd 15088422 -rw------- 2 vmail vmail 326656 May 13 11:23 6f3fa3e4d374a9c80d07af54960ce0e7adb2e0fe-b1935817ed753557546700003d96bafd 15088448 drwx------ 2 vmail vmail 512 May 13 11:23 hashes ./6f/3f/hashes/: total 320 15088422 -rw------- 2 vmail vmail 326656 May 13 11:23 6f3fa3e4d374a9c80d07af54960ce0e7adb2e0fe # ls -li ./dd/d9/ ./dd/d9/hashes/ ./dd/d9/: total 748 80548 -rw------- 3 vmail vmail 250640 May 10 18:19 ddd97aa6f624d4f54968d2c4956fc3a9d796b31b-68f7c122fefb3157ad3500003d96bafd 80548 -rw------- 3 vmail vmail 250640 May 10 18:19 ddd97aa6f624d4f54968d2c4956fc3a9d796b31b-6bf7c122fefb3157ad3500003d96bafd 80547 -rw------- 1 vmail vmail 250640 May 10 18:19 ddd97aa6f624d4f54968d2c4956fc3a9d796b31b-90fd1415e7e53157112800003d96bafd 80549 drwx------ 2 vmail vmail 512 May 10 18:19 hashes ./dd/d9/hashes/: total 248 80548 -rw------- 3 vmail vmail 250640 May 10 18:19 ddd97aa6f624d4f54968d2c4956fc3a9d796b31b # doveconf -n # 2.2.24 (a82c823): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.14 (099a97c) # OS: FreeBSD 10.3-RELEASE i386 auth_default_realm = example.com auth_mechanisms = digest-md5 cram-md5 plain apop doveadm_password = # hidden, use -P to show it first_valid_gid = 1000 first_valid_uid = 1000 lda_mailbox_autosubscribe = yes listen = * mail_attachment_dir = /vmail/attachments mail_gid = vmail mail_home = /vmail/%d/%n mail_location = mdbox:~/mdbox mail_plugins = quota zlib acl mail_shared_explicit_inbox = 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 namespace { list = children location = mdbox:%%h/mdbox:INDEXPVT=~/mdbox/shared/%%u prefix = shared/%%u/ separator = / subscriptions = no type = shared } namespace inbox { inbox = yes location = mailbox Archives { special_use = \Archive } mailbox Drafts { special_use = \Drafts } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = separator = / } passdb { args = scheme=plain username_format=%n /usr/local/etc/dovecot/dovecot.auth/%d.passwd driver = passwd-file } plugin { acl = vfile acl_shared_dict = file:/vmail/shared-mailboxes.db antispam_backend = mailtrain antispam_mail_notspam = report_ham antispam_mail_sendmail = /usr/local/libexec/dovecot/dovecot-lda antispam_mail_sendmail_args = -d;spam(a)example.com;-m antispam_mail_spam = report_spam antispam_spam = Junk antispam_trash = Trash;train_ham;train_prob;train_spam quota = dict:User quota::file:%h/dovecot-quota quota_rule = *:storage=2G quota_rule2 = Trash:storage=+10%% quota_rule3 = Spam:storage=+20%% quota_status_nouser = DUNNO quota_status_success = DUNNO sieve_after = /usr/local/etc/dovecot/sieve/sieve.after sieve_before = /usr/local/etc/dovecot/sieve/sieve.before sieve_vacation_min_period = 0 zlib_save = gz zlib_save_level = 3 } postmaster_address = postmaster(a)example.com protocols = imap lmtp sieve pop3 quota_full_tempfail = yes service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { user = vmail } } service config { unix_listener config { mode = 0600 user = vmail } } service imap-login { inet_listener imaps { port = 0 } process_limit = 200 } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } user = vmail } service pop3-login { inet_listener pop3s { port = 0 } } service quota-status { client_limit = 1 executable = quota-status -p postfix unix_listener /var/spool/postfix/private/quota-status { user = postfix } } ssl_cert = </etc/ssl/certs/mx.example.com.crt ssl_key = </etc/ssl/private/mx.example.com.key userdb { args = username_format=%n /usr/local/etc/dovecot/dovecot.auth/%d.passwd driver = passwd-file } verbose_proctitle = yes protocol imap { mail_plugins = quota zlib acl antispam imap_quota imap_zlib imap_acl } protocol lmtp { mail_plugins = quota zlib acl sieve }

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offtopic: Solr compatible IMAP client
by Andy Smith 04 Jun '18

04 Jun '18

Hi, not sure if I'm allowed to go this off topic on here, sorry if not! I've just installed Solr FTS for Dovecot and its great, as is Dovecot! ;) It works perfectly for fast searches using Roundcube, but can anyone suggest any Windows and/or Linux mail clients that work well with IMAP searches rather than doing their own searches on local copies of mails? I've had a look at Thunderbird and you can use IMAP search, buy you have to manually select it from an advanced search dialogue and it seems you cannot make this the default behaviour. I also tried OperaMail but it doesn't appear to work at all (only header is searchable without downloading local copies). I'm pretty sure Outlook will only use its own search engine on its local copy of data. thanks a lot, Andy. PS this guide was really helpful for setting up Solr FTS with a recent release of Solr (I'm using 6.5), might be worth including a link somewhere on the Dovecot wiki?: http://mor-pah.net/2016/08/15/dovecot-2-2-with-solr-6-or-5

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Strange "IMAP connection broken (server response)" errors
by Jozsef Kadlecsik 20 Mar '18

20 Mar '18

Hello, We upgraded one of our dovecot servers to debian stretch with dovecot 2.2.27 and since then one of our users has been experiencing random IMAP failures. We enabled raw logging at the server side and it shows normal IMAP commands/responses: 1507292522.222427 * 6 FETCH (FLAGS () BODYSTRUCTURE ("text" "plain" ("charset" "us-ascii") NIL NIL "7bit" 4645 112 NIL NIL NIL NIL)) 1507292522.222653 00000011 OK Fetch completed (0.006 + 0.000 secs). On the client side the user runs alpine and the corresponding debug lines: IMAP DEBUG 14:22:02.216167: 00000011 FETCH 6 (BODYSTRUCTURE FLAGS) 14:22:02.217396 IMAP 14:22:02 10/6 mm_notify bye: {[127.0.0.1]:1555/imap/user="ha4aa"}INBOX: [CLOSED] IMAP connection broken (server response) 14:22:02.217471 IMAP 14:22:02 10/6 mm_log error: [CLOSED] IMAP connection broken (server response) The "[127.0.0.1]:1555/imap/user="ha4aa" part in the log comes from an socat inserted between the client and the server to check independetly the imap session. According to socat, the server response didn't reach the client!: 00000010 OK Fetch completed (0.005 + 0.000 secs).\r > 2017/10/06 14:22:02.216299 length=40 from=845 to=884 00000011 FETCH 6 (BODYSTRUCTURE FLAGS)\r and here ends the socat log, the server response didn't reach the client. The same alpine package is used against older dovecot servers from debian jessie and works flawlessly. The server and client are both KVM guests and there's no any content filtering software between them. There's no corresponding error in the dovecot log file and dovecot didn't regard the connection broken and detected client close: ... Oct 6 14:19:44 mail2 dovecot: imap(ha4aa): Debug: Mailbox INBOX: Opened mail UID=55244 because: MIME part Oct 6 14:22:02 mail2 dovecot: imap(ha4aa): Connection closed in=797 out=73151 We are out of the ideas what can be the reason for the random lost server responses. Any help is appreciated! Best regards, Jozsef -- E-mail : kadlecsik.jozsef(a)wigner.mta.hu PGP key: http://www.kfki.hu/~kadlec/pgp_public_key.txt Address: Wigner Research Centre for Physics, Hungarian Academy of Sciences H-1525 Budapest 114, POB. 49, Hungary

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Out of memory on lmtp vsz_limit
by Terence Lau 28 Feb '18

28 Feb '18

Hi, We've been getting these types or errors for quite a while now ... Fatal: master: service(lmtp): child 63477 returned error 83 (Out of memory (service lmtp { vsz_limit=4096 MB }, you may need to increase it) ... and these errors have been decreasing in occurrence as we increased the default_vsz_limit. Which is good but I would like to get some advice on how I could possibly eliminate the errors. We have an internal smtp server (postfix 3.1.0) that has the config "always_bcc=archive(a)company.com" over lmtp. This mailbox is on a separate dovecot server with the following config (please let me know if the full config is required): # 2.2.22 (fe789d2): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.13 (7b14904) # OS: Linux 4.4.0-109-generic x86_64 Ubuntu 16.04.1 LTS ext4 default_vsz_limit = 4 G mail_location = maildir:/home/vmail/%d/%n protocols = " imap lmtp pop3" service lmtp { inet_listener lmtp { port = 24 } } userdb { args = username_format=%u /etc/dovecot/users default_fields = uid=vmail gid=vmail home=/home/vmail/%d/%n driver = passwd-file } protocol lmtp { mail_plugins = } Since we discovered the errors, we've been increasing the default_vsz_limit to 1G, then 2G and now 4G (Server has 6GB of memory). These errors occur whenever a large number of emails get sent around the same time to our smtp server. This causes the dovecot server to start crunching CPU and Memory. Load average goes through the roof and takes some time to come back down as the smtp queue clears itself. This mailbox is obviously very large but we have a script that runs daily to delete any emails older than a month: find /home/vmail/company.com/archive/new/ -type f -mtime +30 -exec rm {} \; find /home/vmail/company.com/archive/cur/ -type f -mtime +30 -exec rm {} \; Still, the mailbox has on average of just under 300,000 emails. No one accesses this mailbox with an email client, not until we need to dig something up. And this has only happen once. So the emails pretty much never get read/process by a user. Now that we've increased the default_vsz_limit to 4G, the occurrence of these errors has reduced considerably. But they still happen occasionally. Short of increasing the memory further, are there any other options I have? Thanks. [https://www.royhill.com.au/email/Emalisignaturecurrent.jpg]

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Panic: data stack: Out of memory when allocating bytes
by Thomas Robers 22 Feb '18

22 Feb '18

Hello, I'm using Dovecot 2.3 and sometimes i get this: --- snip --- Jan 23 14:23:13 mail dovecot: imap(bob(a)tutech.de)<4880><PDqibHFjMvrAqG1n>: Panic: data stack: Out of memory when allocating 134217768 bytes Jan 23 14:23:13 mail dovecot: imap(bob(a)tutech.de)<4880><PDqibHFjMvrAqG1n>: Fatal: master: service(imap): child 4880 killed with signal 6 (core dumped) --- snip --- The gdb backtrace is: --- snip --- GNU gdb (GDB) Red Hat Enterprise Linux (7.2-92.el6) Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /usr/libexec/dovecot/imap...(no debugging symbols found)...done. Attaching to program: /usr/libexec/dovecot/imap, process 4880 ptrace: Kein passender Prozess gefunden. [New Thread 4880] Reading symbols from /usr/lib64/dovecot/libdovecot-storage.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib64/dovecot/libdovecot-storage.so.0 Reading symbols from /usr/lib64/dovecot/libdovecot.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib64/dovecot/libdovecot.so.0 Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib64/libc.so.6 Reading symbols from /lib64/librt.so.1...(no debugging symbols found)...done. Loaded symbols for /lib64/librt.so.1 Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/libdl.so.2 Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/ld-linux-x86-64.so.2 Reading symbols from /lib64/libpthread.so.0...(no debugging symbols found)...done. [Thread debugging using libthread_db enabled] Loaded symbols for /lib64/libpthread.so.0 Reading symbols from /usr/lib64/dovecot/lib01_acl_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib64/dovecot/lib01_acl_plugin.so Reading symbols from /usr/lib64/dovecot/lib02_imap_acl_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib64/dovecot/lib02_imap_acl_plugin.so Reading symbols from /usr/lib64/dovecot/lib15_notify_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib64/dovecot/lib15_notify_plugin.so Reading symbols from /usr/lib64/dovecot/lib20_mail_log_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib64/dovecot/lib20_mail_log_plugin.so Reading symbols from /usr/lib64/dovecot/lib20_zlib_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib64/dovecot/lib20_zlib_plugin.so Reading symbols from /lib64/libz.so.1...(no debugging symbols found)...done. Loaded symbols for /lib64/libz.so.1 Reading symbols from /lib64/libbz2.so.1...(no debugging symbols found)...done. Loaded symbols for /lib64/libbz2.so.1 Reading symbols from /usr/lib64/dovecot/lib30_imap_zlib_plugin.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib64/dovecot/lib30_imap_zlib_plugin.so Core was generated by `dovecot/imap'. Program terminated with signal 6, Aborted. #0 0x00007f73f1386495 in raise () from /lib64/libc.so.6 --- snip --- I searched for that error message but only found some entries regarding older dovecot versions and setting "mail_process_size" but i couldn't find anything regarding Dovecot Version 2.3. Maybe it's something that is fixed already but if so i can't find it. Or is this a configuration issue or a bug? Here my Dovecot configuration: --- snip --- # 2.3.0 (c8b89eb): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.0.1 (d33dca20) # OS: Linux 2.6.32-696.3.1.el6.x86_64 x86_64 CentOS release 6.9 (Final) ext4 auth_debug = yes auth_debug_passwords = yes auth_master_user_separator = * auth_mechanisms = plain login auth_verbose = yes disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it doveadm_port = 12345 imap_max_line_length = 2 M mail_debug = yes mail_location = maildir:/export/home/imap/%Lu/Maildir mail_plugins = acl zlib mail_log notify mailbox_idle_check_interval = 10 secs 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 { hidden = no ignore_on_failure = no inbox = no list = children location = maildir:%%h/Maildir:INDEXPVT=%h/shared/%%u prefix = shared/%%u/ separator = / subscriptions = yes type = shared } namespace inbox { hidden = no inbox = yes list = 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 = INBOX/ separator = / type = private } passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/etc/dovecot/global-acls:cache_secs=300 acl_shared_dict = file:/export/home/shared-db/shared-mailboxes mail_log_events = append delete undelete expunge copy mailbox_delete mailbox_rename flag_change mail_log_fields = uid box msgid size from flags mail_replica = tcp:mail2.tutech.de sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_global = /var/lib/dovecot/sieve/global/ sieve_user_log = ~/.dovecot.sieve.log zlib_save = gz zlib_save_level = 6 } protocols = imap pop3 lmtp sieve sieve service aggregator { fifo_listener replication-notify-fifo { mode = 0666 user = vmail } unix_listener replication-notify { mode = 0666 user = vmail } } service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } unix_listener auth-userdb { group = vmail mode = 0660 user = vmail } } service config { unix_listener config { user = vmail } } service doveadm { inet_listener { port = 12345 } user = vmail } service imap-login { inet_listener imaps { port = 993 ssl = yes } process_limit = 500 process_min_avail = 20 } service imap { executable = imap } service lmtp { inet_listener lmtp { address = 127.0.0.1 port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } service pop3 { executable = pop3 } service replicator { unix_listener replicator-doveadm { mode = 0666 } } ssl = required ssl_cert = </etc/pki/dovecot/certs/mail.tutech.de.crt_chain ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL:!EXPORT ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it syslog_facility = local6 userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap } protocol lmtp { mail_plugins = acl zlib mail_log notify sieve } protocol imap { mail_max_userip_connections = 100 mail_plugins = acl zlib mail_log notify imap_zlib imap_acl rawlog_dir = /tmp/rawlog/%u } --- snip --- Thanks for the help! Kind regards Thomas

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Dovecot 2.3.0 assertion failure on LMTP delivery
by J. Nick Koston 08 Feb '18

08 Feb '18

Hi, We are seeing a frequent assertion failure on LMTP delivery with 2.3.0. This only appears to happen on CentOS/RHEL 7. Jan 24 08:30:58 smoker-devautomerge-c7-1 dovecot: lmtp(29540): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 08:30:58 smoker-devautomerge-c7-1 dovecot: lmtp(29540): Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0xc8ec4) [0x7f226d036ec4] -> /usr/lib64/dovecot/libdovecot.so.0(+0xc8f7e) [0x7f226d036f7e] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f226cfaa190] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe469b) [0x7f226d05269b] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_storage_service_user_unref+0xb4) [0x7f226d334b64] -> dovecot/lmtp(+0x63fa) [0x56438f3673fa] -> dovecot/lmtp(lmtp_local_deinit+0x5c) [0x56438f3678dc] -> dovecot/lmtp(client_state_reset+0x1a) [0x56438f366a5a] -> /usr/lib64/dovecot/libdovecot.so.0(smtp_server_connection_reset_state+0x3c) [0x7f226cfc196c] -> /usr/lib64/dovecot/libdovecot.so.0(smtp_server_command_completed+0x4d) [0x7f226cfbf31d] -> /usr/lib64/dovecot/libdovecot.so.0(+0x54848) [0x7f226cfc2848] -> /usr/lib64/dovecot/libdovecot.so.0(+0xf0970) [0x7f226d05e970] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x65) [0x7f226d04e4b5] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10f) [0x7f226d04fd8f] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7f226d04e5b2] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f226d04e7d8] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f226cfccbb3] -> dovecot/lmtp(main+0x226) [0x56438f3661a6] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f226cbccc05] -> dovecot/lmtp(+0x52d5) [0x56438f3662d5] Jan 24 08:30:58 smoker-devautomerge-c7-1 dovecot: lmtp(29540): Fatal: master: service(lmtp): child 29540 killed with signal 6 (core dumps disabled) From the exim log: 'LOG: MAIN cwd=/usr/local/cpanel 3 args: /usr/sbin/sendmail -v bob(a)l56ob1nf.cptestLOG: MAIN <= root(a)smoker-devautomerge-c7-2.dev.cpanel.net U=root P=local S=3146285 T="Ignore this test from Cpanel-Email-Message-Retrieve.t"LOG: MAIN cwd=/var/spool/exim 4 args: /usr/sbin/exim -v -Mc 1eemjH-0006uB-C2delivering 1eemjH-0006uB-C2 LMTP<< 220 smoker-devautomerge-c7-2.dev.cpanel.net Dovecot ready. LMTP>> LHLO smoker-devautomerge-c7-2.dev.cpanel.net LMTP<< 250-smoker-devautomerge-c7-2.dev.cpanel.net LMTP<< 250-8BITMIME LMTP<< 250-CHUNKING LMTP<< 250-ENHANCEDSTATUSCODES LMTP<< 250-PIPELINING LMTP<< 250-STARTTLS LMTP<< 250-VRFY LMTP<< 250 XCLIENT ADDR PORT PROTO HELO LOGIN TTL TIMEOUT LMTP>> MAIL FROM:<root(a)smoker-devautomerge-c7-2.dev.cpanel.net> LMTP<< 250 2.1.0 OK LMTP>> RCPT TO:<bob(a)l56ob1nf.cptest> LMTP<< 250 2.1.5 OK LMTP>> DATA LMTP<< 354 OK LMTP>> writing message and terminating "." LMTP>> QUIT LOG: MAIN == bob(a)l56ob1nf.cptest R=virtual_user T=dovecot_virtual_delivery defer (-1): LMTP connection closed after end of data’, Jan 24 10:00:55 smoker-devautomerge-c7-1 dovecot: lmtp(30217): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 10:00:55 smoker-devautomerge-c7-1 dovecot: lmtp(30233): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 10:05:15 smoker-devautomerge-c7-1 dovecot: lmtp(32618): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 10:05:52 smoker-devautomerge-c7-1 dovecot: lmtp(375): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 10:05:52 smoker-devautomerge-c7-1 dovecot: lmtp(403): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 10:05:52 smoker-devautomerge-c7-1 dovecot: lmtp(424): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 10:05:52 smoker-devautomerge-c7-1 dovecot: lmtp(430): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 12:32:16 smoker-devautomerge-c7-1 dovecot: lmtp(4435): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 12:54:53 smoker-devautomerge-c7-1 dovecot: lmtp(15232): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 12:54:53 smoker-devautomerge-c7-1 dovecot: lmtp(15238): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) Jan 24 12:54:53 smoker-devautomerge-c7-1 dovecot: lmtp(15244): Panic: file lib-event.c: line 148 (event_unref): assertion failed: (event != current_global_event) doveconf -n: # 2.3.0 (c8b89eb): /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-693.2.2.el7.x86_64 x86_64 CentOS Linux release 7.4.1708 (Core) auth_cache_size = 1 M auth_mechanisms = plain login auth_username_chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!#$-=?^_{}~./@+%" disable_plaintext_auth = no first_valid_uid = 201 lda_mailbox_autocreate = yes lmtp_rcpt_check_quota = yes lmtp_save_to_detail_mailbox = yes lmtp_user_concurrency_limit = 4 mail_access_groups = dovecot mail_plugins = quota quota_clone zlib mail_prefetch_count = 20 maildir_very_dirty_syncs = yes namespace inbox { inbox = yes location = mailbox Archive { auto = create special_use = \Archive } mailbox Archives { auto = no special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = create special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } mailbox spam { auto = create special_use = \Junk } prefix = INBOX. separator = . type = private } passdb { args = /usr/local/cpanel/etc/dovecot/cpauthd-dict.conf driver = dict result_failure = return-fail } passdb { args = /usr/local/cpanel/bin/dovecot-wrap driver = checkpassword skip = authenticated } plugin { acl = vfile:cache_secs=86400 quota_exceeded_message = Mailbox is full / Blocks limit exceeded / Inode limit exceeded } protocols = lmtp imap pop3 service auth { unix_listener auth-client { mode = 0666 } } service config { vsz_limit = 2 G } service dict { unix_listener dict { group = dovecot mode = 0660 } } service imap-login { client_limit = 500 inet_listener imap { address = *,:: } inet_listener imaps { address = *,:: } process_limit = 50 process_min_avail = 2 service_count = 0 vsz_limit = 128 M } service imap { process_limit = 512 vsz_limit = 512 M } service lmtp { client_limit = 1 process_limit = 500 unix_listener lmtp { group = mail mode = 0660 user = mailnull } vsz_limit = 512 M } service managesieve-login { client_limit = 500 process_limit = 50 process_min_avail = 2 service_count = 0 vsz_limit = 128 M } service managesieve { process_limit = 512 vsz_limit = 512 M } service pop3-login { client_limit = 500 inet_listener pop3 { address = *,:: } inet_listener pop3s { address = *,:: } process_limit = 50 process_min_avail = 2 service_count = 0 vsz_limit = 128 M } service pop3 { process_limit = 512 vsz_limit = 512 M } service quota-status { executable = quota-status -p postfix unix_listener quota-status { mode = 0666 } } ssl_cert = </etc/dovecot/ssl/dovecot.crt ssl_cipher_list = ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256 ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = prefetch } userdb { args = /usr/local/cpanel/etc/dovecot/cpauthd-dict.conf driver = dict } userdb { args = /usr/local/cpanel/bin/dovecot-wrap driver = checkpassword } protocol imap { imap_capability = +NAMESPACE imap_idle_notify_interval = 24 mins imap_logout_format = in=%i, out=%o, bytes=%i/%o mail_max_userip_connections = 20 mail_plugins = acl quota imap_quota zlib imap_zlib quota_clone virtual namespace sent { hidden = yes list = no location = virtual:/usr/local/cpanel/etc/dovecot/virtual/sent:INDEX=~/mail/virtual/%u/sent prefix = sent separator = . } namespace spam { hidden = yes list = no location = virtual:/usr/local/cpanel/etc/dovecot/virtual/spam:INDEX=~/mail/virtual/%u/spam prefix = spam separator = . } } protocol pop3 { mail_max_userip_connections = 3 mail_plugins = quota quota quota_clone virtual zlib namespace sent { hidden = yes list = no location = virtual:/usr/local/cpanel/etc/dovecot/virtual/sent:INDEX=~/mail/virtual/%u/sent prefix = sent separator = . } namespace spam { hidden = yes list = no location = virtual:/usr/local/cpanel/etc/dovecot/virtual/spam:INDEX=~/mail/virtual/%u/spam prefix = spam separator = . } pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s, bytes=%i/%o pop3_uidl_format = UID%u-%v } protocol lmtp { mail_plugins = quota quota_clone zlib postmaster_address = root quota_full_tempfail = no } protocol lda { mail_plugins = quota quota_clone zlib postmaster_address = root quota_full_tempfail = no } local_name smoker-devautomerge-c7-1.dev.cpanel.net { ssl_cert = </etc/dovecot/ssl/dovecot.crt ssl_key = # hidden, use -P to show it }

3 3

Bug in dovecot 2.3 virtual plugin
by Jakobus Schürz 07 Feb '18

07 Feb '18

Hi there! I compiled dovecot 2.3 from git. Because there is already a bug in virtual-plugin, and i hoped, it get fixed... but it doesn't. So this is the error-message from the log Jän 03 16:27:08 aldebaran dovecot[26460]: indexer-worker(jakob)<26476><qQ6g1+BhIJvAqAAO:sjYhMTH2TFpsZwAAk1Mx3g>: Panic: file unichar.c: line 160 (uni_ucs4_to_utf8_c): assertion failed: (uni_is_valid_ucs4(chr)) Jän 03 16:27:08 aldebaran dovecot[26460]: indexer-worker(jakob)<26476><qQ6g1+BhIJvAqAAO:sjYhMTH2TFpsZwAAk1Mx3g>: Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0xc6021) [0x7f8299f7a021] -> /usr/local/lib/dovecot/libdovecot.so.0(+0xc60ed) [0x7f8299f7a0ed] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f8299eec481] -> /usr/local/lib/dovecot/libdovecot.so.0(uni_ucs4_to_utf8_c+0xa0) [0x7f8299fb1500] -> /usr/local/lib/dovecot/libdovecot.so.0(+0xa75e0) [0x7f8299f5b5e0] -> /usr/local/lib/dovecot/libdovecot.so.0(mail_html2text_more+0xc5) [0x7f8299f5b775] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(+0xcfcc) [0x7f82990aefcc] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(fts_parser_more+0x27) [0x7f82990aeca7] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(fts_build_mail+0x5e9) [0x7f82990acc39] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(+0x1122d) [0x7f82990b322d] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0x916a) [0x7f82958e316a] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(+0x10f5d) [0x7f82990b2f5d] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0x916a) [0x7f82958e316a] -> /usr/local/lib/dovecot/lib20_fts_plugin.so(+0x10f5d) [0x7f82990b2f5d] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mail_precache+0x2e) [0x7f829a2641be] -> dovecot/indexer-worker [jakob Synoptic/AKTUELL](+0x2533) [0x562227882533] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f8299f91bf9] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x109) [0x7f8299f93499] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7f8299f91d02] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f8299f91f18] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f8299f0f1e3] -> dovecot/indexer-worker [jakob Synoptic/AKTUELL](main+0xe7) [0x562227881f47] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f8299b352b1] -> dovecot/indexer-worker [jakob Synoptic/AKTUELL](_start+0x2a) [0x56222788201a] Jän 03 16:27:08 aldebaran dovecot[26460]: indexer: Error: Indexer worker disconnected, discarding 1 requests for jakob Jän 03 16:27:08 aldebaran dovecot[26460]: imap(jakob)<26472><qQ6g1+BhIJvAqAAO>: Error: indexer failed to index mailbox Synoptic/AKTUELL Jän 03 16:27:08 aldebaran dovecot[26460]: indexer-worker(jakob)<26476><qQ6g1+BhIJvAqAAO:sjYhMTH2TFpsZwAAk1Mx3g>: Fatal: master: service(indexer-worker): child 26476 killed with signal 6 (core dumps disabled) Jän 03 16:27:09 aldebaran dovecot[26460]: indexer-worker(jakob)<26484><qQ6g1+BhIJvAqAAO:J6mUIEz2TFp0ZwAAk1Mx3g>: Error: lucene index /var/lib/dovecot/db/indexes/Maildir/jakob/lucene-indexes: IndexWriter() failed (#1): Lock obtain timed out Jän 03 16:27:10 aldebaran dovecot[26460]: indexer-worker(jakob)<26484><qQ6g1+BhIJvAqAAO:J6mUIEz2TFp0ZwAAk1Mx3g>: Error: Mailbox Synoptic/AKTUELL: Transaction commit failed: BUG: Unknown internal error (attempted to index 1488 messages (UIDs 15214..16775)) Jän 03 16:27:10 aldebaran dovecot[26460]: imap(jakob)<26480><lP5r2OBhKJvAqAAO>: Error: indexer failed to index mailbox Synoptic/AKTUELL Jän 03 16:27:11 aldebaran dovecot[26460]: imap(jakob)<26472><qQ6g1+BhIJvAqAAO>: Panic: file mail-index.c: line 793 (mail_index_close): assertion failed: (index->open_count > 0) Jän 03 16:27:11 aldebaran dovecot[26460]: imap(jakob)<26472><qQ6g1+BhIJvAqAAO>: Error: Raw backtrace: /usr/local/lib/dovecot/libdovecot.so.0(+0xc6021) [0x7fb0fbd3a021] -> /usr/local/lib/dovecot/libdovecot.so.0(+0xc60ed) [0x7fb0fbd3a0ed] -> /usr/local/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fb0fbcac481] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0xf39a8) [0x7fb0fc0d99a8] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0xd92d1) [0x7fb0fc0bf2d1] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0xd9363) [0x7fb0fc0bf363] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(index_storage_mailbox_free+0x9) [0x7fb0fc0b0f39] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(+0xd05a4) [0x7fb0fc0b65a4] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_free+0x19) [0x7fb0fc030c99] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0xabdc) [0x7fb0f729bbdc] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0xacb9) [0x7fb0f729bcb9] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_close+0x1a) [0x7fb0fc030c0a] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0xac60) [0x7fb0f729bc60] -> /usr/local/lib/dovecot/lib20_virtual_plugin.so(+0xacb9) [0x7fb0f729bcb9] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_close+0x1a) [0x7fb0fc030c0a] -> /usr/local/lib/dovecot/libdovecot-storage.so.0(mailbox_free+0x13) [0x7fb0fc030c93] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](imap_client_close_mailbox+0x5b) [0x56514d31305b] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](cmd_logout+0x35) [0x56514d309485] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](command_exec+0x64) [0x56514d312ca4] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](+0x1b0b2) [0x56514d3110b2] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](+0x1b13c) [0x56514d31113c] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](client_handle_input+0x1a5) [0x56514d311565] -> dovecot/imap [jakob 192.168.0.14 LOGOUT](client_input+0x82) [0x56514d311be2] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7fb0fbd51bf9] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x109) [0x7fb0fbd53499] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7fb0fbd51d02] -> /usr/local/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fb0fbd51f18] -> /usr/local/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fb0fbccf1e3] Jän 03 16:27:11 aldebaran dovecot[26460]: imap(jakob)<26472><qQ6g1+BhIJvAqAAO>: Fatal: master: service(imap): child 26472 killed with signal 6 (core dumps disabled) I get this errors when i open or search in a virtual folder. i have enabled fts_lucene. My config is: # dovecot -n # 2.3.devel (393bfbea8): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.0.rc1 (d68c23a1) # OS: Linux 4.13.0-trunk-amd64 x86_64 Debian 9.3 btrfs auth_mechanisms = plain login cram-md5 digest-md5 auth_socket_path = /usr/local/var/run/dovecot/auth-userdb first_valid_uid = 1000 imap_capability = +XDOVECOT imap_client_workarounds = tb-extra-mailbox-sep lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = *, ::1 login_trusted_networks = 127.0.0.1/8 192.168.0.0/24 192.168.1.0/24 172.17.0.0/24 172.18.0.0/24 mail_gid = vmail mail_home = /var/mail/%u mail_location = maildir:/var/mail/%u/Maildir:LAYOUT=fs:INDEX=/var/lib/dovecot/db/indexes/Maildir/%u:INDEXPVT=/var/lib/dovecot/db/indexes/Maildir/%u:CONTROL=/var/lib/dovecot/db/control/Maildir/%u mail_plugins = zlib quota acl listescape mail_log notify virtual fts fts_lucene mail_privileged_group = vmail mail_server_admin = mailto:jakob@xundeenergie.at mail_shared_explicit_inbox = 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 namespace { list = children location = maildir:/var/mail/public/:LAYOUT=fs:INDEX=/var/lib/dovecot/db/indexes/public/%u:INDEXPVT=/var/lib/dovecot/db/indexes/public/%u prefix = Roseggergasse/ separator = / subscriptions = no type = public } namespace Geteilt { hidden = no inbox = no list = children location = maildir:/var/mail/%%u/Maildir:LAYOUT=fs:INDEXPVT=/var/lib/dovecot/db/indexes/shared/%u/%%u:INDEX=/var/lib/dovecot/db/indexes/shared/%u/%%u prefix = Geteilt/%%n/ separator = / subscriptions = no type = shared } namespace Mailarchiv { hidden = no inbox = no list = children location = maildir:/var/mail/mailarchiv/%u/:LAYOUT=fs:INDEX=/var/lib/dovecot/db/indexes/mailarchiv/%u:INDEXPVT=/var/lib/dovecot/db/indexes/mailarchiv/%u mailbox incoming { auto = create } mailbox outgoing { auto = create } prefix = Mailarchiv/ separator = / subscriptions = no type = private } namespace Real { hidden = yes list = no location = virtual:/var/mail/real:INDEX=/var/lib/dovecot/db/indexes/real/%u prefix = Real/ separator = / subscriptions = no } namespace Synoptic { hidden = no list = children location = virtual:/var/mail/virtual:INDEX=/var/lib/dovecot/db/indexes/virtual/%u mailbox INBOX/Archives { auto = no special_use = \Archive } mailbox INBOX/Drafts { auto = no special_use = \Drafts } mailbox INBOX/Entwürfe { auto = no special_use = \Drafts } mailbox INBOX/Junk { auto = no special_use = \Junk } mailbox INBOX/Sent { auto = no special_use = \Sent } mailbox INBOX/Spam { auto = no special_use = \Junk } prefix = Synoptic/ separator = / subscriptions = no } namespace inbox { hidden = no inbox = yes location = mailbox Archiv { auto = no special_use = \Archive } mailbox Archive { auto = no special_use = \Archive } mailbox Archives { auto = no special_use = \Archive } mailbox "Deleted Messages" { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Drafts { auto = no special_use = \Drafts } mailbox Entwürfe { auto = no special_use = \Drafts } mailbox "Gelöschte Elemente" { auto = no autoexpunge = 30 days special_use = \Trash } mailbox "Gelöschte Objekte" { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Gesendet { auto = no special_use = \Sent } mailbox "Gesendete Elemente" { auto = no special_use = \Sent } mailbox "Gesendete Objekte" { auto = no special_use = \Sent } mailbox Important { auto = no } mailbox Junk { auto = subscribe autoexpunge = 30 days special_use = \Junk } mailbox Mistkübel { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Papierkorb { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Spam { auto = no autoexpunge = 30 days special_use = \Junk } mailbox Synoptic/Alle { auto = no comment = All my messages special_use = \All } mailbox Trash { auto = no autoexpunge = 30 days special_use = \Trash } mailbox Wichtig { auto = create } prefix = INBOX/ separator = / subscriptions = no type = private } namespace subscriptions { hidden = yes list = no location = prefix = subscriptions = yes } passdb { args = scheme=CRYPT username_format=%u /usr/local/etc/dovecot/users driver = passwd-file } plugin { acl = vfile:/etc/dovecot/dovecot-acl:cache_secs=300 acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db fts = lucene fts_autoindex = yes fts_autoindex_max_recent_msgs = 80 fts_index_timeout = 90s fts_lucene = whitespace_chars=@. normalize no_snowball mail_home = /var/mail/%u setting_name = sieve, managedsieve sieve = file:/var/mail/%u/sieve/;active=/var/mail/%u/sieve/%u.sieve } postmaster_address = postmaster@localhost protocols = imap pop3 lmtp imap lmtp sieve pop3 sieve service anvil { unix_listener anvil-auth-penalty { mode = 00 } } service auth { unix_listener auth-client { group = vmail mode = 0666 user = Debian-exim } unix_listener auth-userdb { group = vmail mode = 0666 user = vmail } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_min_avail = 1 service_count = 0 } service imap { executable = imap postlogin process_limit = 1024 vsz_limit = 400 M } service lmtp { executable = lmtp -L user = vmail vsz_limit = 400 M } service postlogin { executable = script-login -d rawlog } ssl = required ssl_cert = </usr/local/etc/dovecot/dovecot.crt ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { args = username_format=%u /usr/local/etc/dovecot/users default_fields = home=/var/mail/%u driver = passwd-file } verbose_proctitle = yes protocol lmtp { auth_username_format = %n mail_plugins = zlib quota acl listescape mail_log notify virtual fts fts_lucene quota sieve acl } protocol lda { mail_plugins = zlib quota acl listescape mail_log notify virtual fts fts_lucene quota sieve acl } protocol imap { mail_max_userip_connections = 10 mail_plugins = zlib quota acl listescape mail_log notify virtual fts fts_lucene imap_quota imap_acl } The virtual Folder-definitions are: # find /var/mail/virtual/ /var/mail/real/ /var/mail/virtual/ /var/mail/virtual/GINBOX /var/mail/virtual/GINBOX/dovecot-virtual /var/mail/virtual/Neue /var/mail/virtual/Neue/dovecot-virtual /var/mail/virtual/Markierte /var/mail/virtual/Markierte/dovecot-virtual /var/mail/virtual/Ungelesene /var/mail/virtual/Ungelesene/dovecot-virtual /var/mail/virtual/Sent /var/mail/virtual/Sent/dovecot-virtual /var/mail/virtual/Drafts /var/mail/virtual/Drafts/dovecot-virtual /var/mail/virtual/Trash /var/mail/virtual/Trash/dovecot-virtual /var/mail/virtual/AKTUELL /var/mail/virtual/AKTUELL/dovecot-virtual /var/mail/virtual/Archives /var/mail/virtual/Archives/dovecot-virtual /var/mail/virtual/dovecot-acl-list /var/mail/virtual/WICHTIG /var/mail/virtual/WICHTIG/dovecot-virtual /var/mail/real/ /var/mail/real/Alle /var/mail/real/Alle/dovecot-virtual /var/mail/real/dovecot-acl-list /var/mail/real/einjahr /var/mail/real/einjahr/dovecot-virtual /var/mail/real/zweijahr /var/mail/real/zweijahr/dovecot-virtual /var/mail/real/dreijahr /var/mail/real/dreijahr/dovecot-virtual # cat /var/mail/virtual/AKTUELL/dovecot-virtual Real/Alle inthread refs younger 2592000 # cat /var/mail/real/Alle/dovecot-virtual !INBOX INBOX/* -INBOX/Trash -INBOX/Trash/* -INBOX/Archives -INBOX/Archives/* -INBOX/Drafts -INBOX/Drafts/* -INBOX/Junk -INBOX/Junk/* -INBOX/SYSTEM -INBOX/SYSTEM/* all The others are similar. Greez Jakob

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Live Import of IMAP
by Sergio Belkin 01 Feb '18

01 Feb '18

Hi, I have the mailbox of jon.doe(a)example.com just migrated only with mails after migration, is it ok to run: doveadm -o mail_fsync=never sync -1 -R -u joe(a)example.com imapc: wiil that import all mails missing mails to the new server? I don't want that delete any current mail, is that right the command above? thanks in advance! -- -- Sergio Belkin LPIC-2 Certified - http://www.lpi.org

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lda: Warning: Failed to parse return-path header: Invalid character in localpart
by Christian Authmann 01 Feb '18

01 Feb '18

Hello, Sometimes, when delivering mails, this warning appears in my syslog: > lda(...): Warning: Failed to parse return-path header: Invalid character in localpart dovecot-lda still exits with 0 and the mail is inserted into my inbox. Looking at the mails in question, I determined that the error is caused by a multiline Return-Path header. Here's a testcase: --- snip --- Return-Path: <nowhere(a)example.com> From: "Nowhere" <nowhere(a)example.com> To: redacted(a)example.com Subject: Testcase for lda warnings Date: Wed, 31 Jan 2018 12:00:00 +0000 This is a message body. --- snap --- Copy into a file, with \r\n line endings, then run something like this: > cat testcase.txt | /usr/lib/dovecot/dovecot-lda -e -d '<username>' with a username recognized by your running dovecot installation. The header is 'Return-Path:', \r\n, two spaces, '<...>', \r\n According to rfc2822 folding rules, that should be valid - the Return-Path header allows CFWS at that location. The error message originates in lib-lda/mail-deliver.c in mail_deliver_get_return_address(), while the invalid character message seems to originate from one of several places in lib-lda/mail-deliver.c Ciao, Christian Authmann

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