- dovecot - dovecot.org

[Dovecot] dovecot-1.0-beta3 in production
by Branko F. Gračnar 27 Feb '06

27 Feb '06

Hello there! I've migrated our courier-imap production imap/pop server to dovecot 1.0-beta few days ago. In general dovecot performs excellent, but i've encountered several "bugs" in dovecot log: --- snip --- dovecot.log.1.gz:Feb 24 16:05:21 elfstone dovecot: imap(user3(a)domain.tld): Maildir /export/mail/domain.tld/user3 sync: UID inserted in the middle of mailbox (47681 > 47680, file = 1138960753.P9796Q0M642679.elfstone:2,T) dovecot.log.1.gz:Feb 24 16:20:48 elfstone dovecot: imap(user4(a)domain.tld): file mail-transaction-log-view.c: line 140 (mail_transaction_log_view_set): assertion failed: (min_file_seq != max_file_seq || min_file_offset <= max_file_offset) dovecot.log.1.gz:Feb 24 16:21:16 elfstone dovecot: imap(user4(a)domain.tld): file mail-transaction-log-view.c: line 140 (mail_transaction_log_view_set): assertion failed: (min_file_seq != max_file_seq || min_file_offset <= max_file_offset) dovecot.log.1.gz:Feb 24 16:21:49 elfstone dovecot: imap(user4(a)domain.tld): file mail-transaction-log-view.c: line 140 (mail_transaction_log_view_set): assertion failed: (min_file_seq != max_file_seq || min_file_offset <= max_file_offset) dovecot.log.1.gz:Feb 24 16:46:27 elfstone dovecot: imap(user1(a)domain.tld): Maildir /export/mail/domain.tld/user1 sync: UID < next_uid (1 < 199, file = 1122973973.V809Id001aafc.elfstone,S=8889:2,RS) dovecot.log.1.gz:Feb 24 16:47:31 elfstone dovecot: imap(user1(a)domain.tld): Maildir /export/mail/domain.tld/user1 sync: UID inserted in the middle of mailbox (183 > 181, file = 1140780283.P10326Q0M678892.elfstone:2,RS) dovecot.log.1.gz:Feb 24 16:54:47 elfstone dovecot: imap(user5(a)domain.tld): Corrupted index file /export/data/dovecot/domain.tld/user5/.Sent/dovecot.index: keywords_count larger than header size dovecot.log.1.gz:Feb 24 17:01:00 elfstone dovecot: imap(user1(a)domain.tld): Corrupted transaction log file /export/data/dovecot/domain.tld/user1/.Sent/dovecot.index.log: Append with UID 1, but next_uid = 4850 dovecot.log.1.gz:Feb 24 20:25:40 elfstone dovecot: imap(userX(a)domain2.tld): file mail-transaction-log-view.c: line 140 (mail_transaction_log_view_set): assertion failed: (min_file_seq != max_file_seq || min_file_offset <= max_file_offset) dovecot.log.10.gz:Feb 15 19:20:05 elfstone dovecot: imap(user2(a)domain.tld): stat(/export/mail/domain.tld/user2/.Trash.Cron/new) failed: No such file or directory --- snip --- I have multi-domain setup with several hundred users, emails are delivered using dovecot-deliver LDA, dovecot indexes are outside mailboxes, indexes and mailboxes are on local filesystem (xfs). I'm using linux 2.6 on slackware platform. If you need any more info, just let me know. Best regards, Brane

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[Dovecot] Impact of log files on performance
by vmstech 27 Feb '06

27 Feb '06

Hi - im trawling through my config trying to reduce chances of timeouts etc - I use postgres for all the dovecot and exim4 authentication and location of mail directories etc - and found that by eliminating logging (or reducing to almost none) the queries invovled have gone from >500ms to <3ms - Just wondering if I'll get similar performance gains with dovecot (which is set to be verbose as I could) - esp during connection thx Glenn

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[Dovecot] Config Error Puzzle
by Dick Middleton 27 Feb '06

27 Feb '06

Can somebody help me get this right please. I'm trying to upgrade to version 1 and I get this error which I can't workaround: expecting "=" on line 33 Line 33 is the passdb file name ?? I'm trying this with 1.0 beta3 on a Devil linux system (v 1.2.9). Thanks Dick ssl_disable = no ssl_cert_file = /etc/ssl/certs/mydomain1.pem ssl_key_file = /etc/ssl/private/myhost-private.pem log_timestamp = "%Y-%m-%d %H:%M:%S " mail_extra_groups = mail default_mail_env = mbox:/home/vhome/%d/%n:INBOX=/home/vmail/%d/%n protocol imap { } protocol pop3 { } auth_realms = mydomain1.net mydomain2.net mydomain3.co.uk auth_default_realm = mydomain1.net auth_verbose = yes auth_debug = yes auth default { mechanisms = plain passdb passwd-file { /etc/imap.passwd } userdb passwd-file { /etc/imap.passwd } user = dovecot }

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[Dovecot] Errors
by vmstech 27 Feb '06

27 Feb '06

Hi All I intermittently get these kind of errors when connecting to my beta2 imap dovecot: reported error 0x8004df0b:'Outlook is unable to download folder (null) from the imap email server for account mymailhost.com'. Error the server is unavailable. Receiveing Reported error (0x800CC0F):'The connection to the server was interrupted' While these are from outlook - I often get one simiar to the first one in my evolution clients. Are these things that can be best managed with some sort of configuration change? What might be other possible causes of these (apart from a power cut to the server? thx Glenn

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[Dovecot] RHEL4 configuration
by f00bar 26 Feb '06

26 Feb '06

I just installed a new email server using RHEL4. I only want pop3d services, no imap is desired so I modified the dovecot.conf file by changing to "protocols = pop3". All is working fine. However, dovecot requires access to /home/user/mail or the Thunderbird client hangs when attempting to download email. We have a single /home that is mounted by all servers for all users. We do not want the mail server to mount this /home. So I created directories with the usernames in the mail server's /home. This is not desired from a system management perspective. The files dovecot creates in the /home/user/mail directory appear to be for the use of IMAP which we do not use. How do I configure dovecot to not access /home and to not create any IMAP files? Thank you

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[Dovecot] Quota plugin problem
by Max "CtRiX" 26 Feb '06

26 Feb '06

Hi, I'm using dovecot beta3 on a debian sarge (unstable debs backported). I have successfully managed to make dovecot-lda to work but enabling modules it seems not to work and gives me strange error messages. Postfix logs follows: Feb 26 16:35:38 aretha postfix/qmgr[23520]: 7AADF70: from=<test(a)test.it>, size=719440, nrcpt=1 (queue active) Feb 26 16:35:38 aretha postfix/smtpd[24174]: disconnect from localhost.localdomain[127.0.0.1] Feb 26 16:35:38 aretha deliver: dlopen(/usr/lib/dovecot/modules/lda/lib02_trash_plugin.so) failed: /usr/lib/dovecot/modules/lda/lib02_trash_plugin.so: undefined symbol: quota Feb 26 16:35:38 aretha deliver: Unknown quota module: /var/mail/virtual/test.it/test/ Feb 26 16:35:38 aretha postfix/pipe[24126]: 7AADF70: to=<test(a)test.it>, relay=dovecot, delay=1, status=sent (test.it) Feb 26 16:35:38 aretha postfix/qmgr[23520]: 7AADF70: removed Feb 26 16:35:39 aretha dovecot: imap(test(a)test.it): dlopen(/usr/lib/dovecot/modules/imap/lib02_imap_quota_plugin.so) failed: /usr/lib/dovecot/modules/imap/lib02_imap_quota_plugin.so: undefined symbol: quota Feb 26 16:35:39 aretha dovecot: imap(test(a)test.it): Unknown quota module: /var/mail/virtual/test.it/test/ Both Imap and LDA give the same errors. What did I do wrong? Max

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[Dovecot] dovecot is crashing
by Sergey Bolberov 26 Feb '06

26 Feb '06

My dovecot have crashed twice in last month: System is FC4 AMD64 2.6.11-1.1369_FC4 /var/log/messages pop3-login[9545]: segfault at 0000000000000000 rip 0000003bb6d009e0 rsp 00007fffff813720 error 6 /var/log/dovecot dovecot: Feb 24 23:17:47 Error: child 9545 (login) killed with signal 11 dovecot: Feb 24 23:17:47 Error: Login process died too early - shutting down File system type is XFS, dovecot version is dovecot-1.0.beta3

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[Dovecot] how to make the server consistent for replication?
by atul chaudhari 26 Feb '06

26 Feb '06

hi every one, i want to make the dovecot mail server consistent and flush its caches for backup purpose. can anybody tell mehow to make that? (i've written a signal handler to call the functoins from my code. The server caches should be flushed before the function call.) any reply ? --------------------------------- Yahoo! Mail Bring photos to life! New PhotoMail makes sharing a breeze.

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[Dovecot] minor compilation bug in Dovecot 1.0 beta3
by jdd＠cs.toronto.edu 26 Feb '06

26 Feb '06

There's a minor compilation bug in dovecot 1.0 beta3 -- if there are no sql_drivers, then the generated Makefile in src/lib-sql exits improperly. A simple patch is appended below. Regards, John -- John DiMarco <jdd(a)cs.toronto.edu> Office: SF3302B IT Director Phone: 416-978-5300 Department of Computer Science, University of Toronto Fax: 416-946-5464 http://www.cs.toronto.edu/~jdd *** src/lib-sql/Makefile.in 2006/02/26 00:39:09 1.1 --- src/lib-sql/Makefile.in 2006/02/26 00:38:43 *************** *** 470,480 **** echo '/* this file automatically generated by Makefile */' >$@ echo '#include "lib.h"' >>$@ echo '#include "sql-api.h"' >>$@ ! for i in $(sql_drivers) ; do \ echo "extern struct sql_db driver_$${i}_db;" >>$@ ; \ done echo 'void sql_drivers_register_all(void) {' >>$@ ! for i in $(sql_drivers) ; do \ echo "sql_driver_register(&driver_$${i}_db);" >>$@ ; \ done echo '}' >>$@ --- 470,480 ---- echo '/* this file automatically generated by Makefile */' >$@ echo '#include "lib.h"' >>$@ echo '#include "sql-api.h"' >>$@ ! -for i in $(sql_drivers) ; do \ echo "extern struct sql_db driver_$${i}_db;" >>$@ ; \ done echo 'void sql_drivers_register_all(void) {' >>$@ ! -for i in $(sql_drivers) ; do \ echo "sql_driver_register(&driver_$${i}_db);" >>$@ ; \ done echo '}' >>$@ *** src/lib-sql/Makefile.am 2006/02/26 00:44:34 1.1 --- src/lib-sql/Makefile.am 2006/02/26 00:44:44 *************** *** 25,35 **** echo '/* this file automatically generated by Makefile */' >$@ echo '#include "lib.h"' >>$@ echo '#include "sql-api.h"' >>$@ ! for i in $(sql_drivers) ; do \ echo "extern struct sql_db driver_$${i}_db;" >>$@ ; \ done echo 'void sql_drivers_register_all(void) {' >>$@ ! for i in $(sql_drivers) ; do \ echo "sql_driver_register(&driver_$${i}_db);" >>$@ ; \ done echo '}' >>$@ --- 25,35 ---- echo '/* this file automatically generated by Makefile */' >$@ echo '#include "lib.h"' >>$@ echo '#include "sql-api.h"' >>$@ ! -for i in $(sql_drivers) ; do \ echo "extern struct sql_db driver_$${i}_db;" >>$@ ; \ done echo 'void sql_drivers_register_all(void) {' >>$@ ! -for i in $(sql_drivers) ; do \ echo "sql_driver_register(&driver_$${i}_db);" >>$@ ; \ done echo '}' >>$@

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[Dovecot] Re : dovecot --Err Plaintext authentication disabled
by mickael.choisnard＠free.fr 25 Feb '06

25 Feb '06

Thanks I succeed with disable_plaintext_auth = no I think that it's not good for security. I'm looking for security with pop3s. I made a certificate with cacert.org

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