- dovecot - dovecot.org

[Dovecot] two possible inboxes, possible to check both?
by adcx＠server101.com 28 Feb '06

28 Feb '06

We're currently in the process of organising a migration from mbox to maildir mail storage on our server, and are hoping to phase this in gradually using dovecot's capabilities. Procmail has already been configured to deliver mail to either the existing mbox or to a new maildir for the user based on the (non)existence of a .converted file in their home directory. Where we are having problems is the pop3 retrieval side of things. Basically, we're chasing a setup where dovecot will first check to see if /mail/<first letter of username>/username exists (indicating that the account has had the .converted file created and new mail has since been delivered to that user in the new maildir format). If this directory does not exist, it should fallback to retrieving mail from the as-yet unconverted mbox, /var/mail/username. We've tried different combinations of namespaces and default_mail_env values to achieve this without success. One attempt which has come particularly close was: 1. Leaving /etc/dovecot.conf almost entirely default. The auto-detection ability of dovecot performs the following (output to /var/log/maillog): Feb 28 14:57:45 mouse dovecot: pop3(joe): maildir: access(/home/joe/Maildir, rwx): failed: No such file or directory Feb 28 14:57:45 mouse dovecot: pop3(joe): maildir: couldn't find root dir Feb 28 14:57:45 mouse dovecot: pop3(joe): mbox: root exists (/home/joe/mail) Feb 28 14:57:45 mouse dovecot: pop3(joe): mbox: INBOX exists (/var/mail/joe) Feb 28 14:57:45 mouse dovecot: pop3(joe): mbox: root=/home/joe/mail, index=/home/joe/mail, inbox=/var/mail/joe Feb 28 14:57:45 mouse dovecot: pop3-login: Login: user=<joe>, method=PLAIN, rip=192.168.6.20, lip=192.168.6.2 Feb 28 14:57:45 mouse dovecot: pop3(joe): Logout. top=0/0, retr=0/ del=0/0, size=0 This is almost exactly what we're chasing, except the new Maildir is not going to be created in the user's home dir, it will be in /mail/<first letter of username>/username. All attempts to make this last adjustment have ultimately modified the behaviour of dovecot so that it only checks the one source explicity given, and then simply fails if it does not exist, unlike the unconfigured behaviour illustrated above where it is able to fallback to a secondary source. A '2nd_default_mail_env' is the type of variable I'm looking to define, if that makes it any clearer. Any advice much appreciated, I've already searched most of the archives for this list without finding anything similar.

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[Dovecot] Change Default IMAP folder
by Marco 28 Feb '06

28 Feb '06

Hi all, I use dovecot 0.99.14-1 Can I change the default Dovecot IMAP Trash folder from .Draft to .Drafts? Dovecot make a .Draft folder and my e-mail clients (Thunderbird - Outlook Express) makes .Drafts folder. Thanks Marco

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[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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