June 2005 - dovecot - dovecot.org

[Dovecot] dovecot restart bug?
by Andrew Hutchings 03 Jul '05

03 Jul '05

Using my initd script (no idea of the origin now) to do a restart I randomly get: Jun 28 13:56:05 svr24 dovecot: Killed with signal 15 Jun 28 13:56:05 svr24 dovecot: Dovecot v1.0-test74 starting up Jun 28 13:56:06 svr24 dovecot: Auth process died too early - shutting down Jun 28 13:56:06 svr24 dovecot: auth(default): net_connect_unix(/var/run/dovecot/auth-worker.23322) failed: No such file or directory Jun 28 13:56:06 svr24 dovecot: child 23322 (auth) returned error 89 It then suddenly starts working again, is this something to do with that new mysql timeout feature? This started happening when I migrated from test72 to test73. Regards Andrew -- Andrew Hutchings (A-Wing) - Linux Guru Netserve Consultants - http://www.domaincity.co.uk/ A-Wing Internet Services - http://www.a-wing.co.uk/ Random quote 111: "It's possible, you can never know, that the universe exists only for me." - BILL GATES

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[Dovecot] dovecot problem or not ?
by Mircea Hutanu 03 Jul '05

03 Jul '05

Hi, I've setup a postfix mailserver with dovecot and postgres database for virtual domains with virtual users, but I have some problems getting the accounts to work. I've used instruction from this tutorial : http://wiki.dovecot.org/moin.cgi/DovecotPostgresql I want users to be able to get their email with imap or pop3, but I didn't manage to solve this problem. The server makes mbox style user accounts, I can send email to them but when I try to read emails from virtual accounts I get the following error : Jun 28 14:42:52 voodoo dovecot-auth: Login process 10 connected Jun 28 14:42:52 voodoo dovecot-auth: Login process 10 sent handshake: PID 10491 Jun 28 14:42:58 voodoo dovecot-auth: PGSQL: Performing query: SELECT password FROM users WHERE userid = 'user(a)foo.org' Jun 28 14:42:58 voodoo dovecot-auth: PGSQL: Performing query: SELECT '/home/'||home AS home, uid, gid FROM users WHERE userid = 'user(a)foo.org' Jun 28 14:42:58 voodoo pop3(user(a)foo.org): mbox: Can't create root IMAP folder /home/foo.org/mails/user/mail: Permission denied Jun 28 14:42:58 voodoo pop3(user(a)foo.org): Failed to create storage with data: mbox:/home/virtual/foo.org/mails/user Jun 28 14:42:58 voodoo pop3-login: Login: user(a)foo.org [127.0.0.1] Jun 28 14:42:58 voodoo dovecot-auth: Login process 8 disconnected Jun 28 14:42:58 voodoo dovecot: child 10492 (pop3) returned error 89 The error " mbox: Can't create root IMAP folder /home/foo.org/mails/user/mail: Permission denied" appears because, using mbox, the home for virtual accounts is /home/virtual/foo.org/mails/user, where user is allready the mbox file, to the sistem can't create the directory structure for IMAP settings. What I'm doing wrong ? Did someone else got this problem ? Thanks ! -- ------------------------------ Mircea Hutanu voodookid(a)gmail.com ------------------------------

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[Dovecot] Authenticate login failed: Unsupported authentication mechanism
by Orchun Kolcu 03 Jul '05

03 Jul '05

Hi, I just switched (or tried to) from UW-IMAP to dovecot. When I try to login through the telnet client I get: 1 NO Authentication failed and in the log I get: imap-login: Authenticate PLAIN failed: Unsupported authentication mechanism If I try to login through the IMAP client (Thunderbird), in the log I get the slightly different: imap-login: Authenticate login failed: Unsupported authentication mechanism Here's the auth setup from the conf: auth default { mechanisms = plain passdb = pam imap userdb = passwd user = root } And here's /etc/pam.d/imap for good measure: auth required pam_nologin.so auth required pam_stack.so service=system-auth account required pam_stack.so service=system-auth session required pam_stack.so service=system-auth The server is a fairly standard Redhat 8 setup. Any idea what's going on? Thanks! -- Orchun Kolcu orchunk(a)fastem.com -- http://www.fastmail.fm - The professional email service

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[Dovecot] root login is refused, but....
by Roberto Tagliaferri 30 Jun '05

30 Jun '05

If i try to connect as root (dovecto 1.0) with wrong password doveco exit with an auth error robyt:~# telnet dns pop3 Trying x.x.x.x Connected to dns. Escape character is '^]'. +OK Dovecot ready. user root +OK pass [wrong] -ERR Authentication failed. but if the password is correct dovecot exit but with another error: user root +OK pass [correct] -ERR [IN-USE] Internal login failure. Refer to server log for more information. Connection closed by foreign host. robyt:~# Why dovecot don't close the connection at user root? With this system i may know the root password.. -- Roberto Tagliaferri Responsabile Progettazione & Produzione TosNet s.r.l. - Internet Service Provider r.tagliaferri(a)tosnet.it www.tosnet.it

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[Dovecot] Dovecot doesn't use vchkpw properly :(
by Casey Allen Shobe 30 Jun '05

30 Jun '05

Hey all, It seems that dovecot does NOT call vchkpw properly when using vpopmail-style authentication, I can only guess that it reads the vpasswd{,.cdb} files directly. This is indicated by the syslog log for the mail facitily which reads: Jun 30 16:51:30 [vpopmail] vchkpw-smtp: (PLAIN) login success blah@blah.com:24.17.153.137 Jun 30 17:16:25 [pop3-login] Login: blah(a)blah.com [24.17.153.137] Jun 30 17:47:42 [imap-login] Login: blah(a)blah.com [216.57.201.58] pop3-login and imap-login are dovecot processes - vchkpw is never called or there would also be log entries for it. I've verified this with the vpopmail list, who agree that the problem lies within dovecot. This might not be quite so annoying, but we are using vpopmail compiled with the --enable-learn-passwords option, which will populate the password files with cleartext versions of the passwords where they are missing. Because of dovecot not calling vchkpw, this doesn't work for POP3/IMAP logins, only SMTP (using qmail-smtpd). People don't send mail from every account they poll, and we need to get all of the passwords in cleartext form so that we can complete migration to a PostgreSQL password database which multiple applications will use to authenticate. Are there plans to make dovecot use vchkpw in the normal checkpassword manner? If not, I'd like to request it. We will probably switch back to qmail-pop3d and bincimap for the time being to finish collecting passwords if we can't get a quick fix...I think we can do that without much impact. Cheers, -- Casey Allen Shobe | http://casey.shobe.info cshobe(a)seattleserver.com | cell 425-443-4653 AIM & Yahoo: SomeLinuxGuy | ICQ: 1494523 SeattleServer.com, Inc. | http://www.seattleserver.com

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RE: [Dovecot] LF not found where expected
by Miles Mawyer 30 Jun '05

30 Jun '05

Thanks for the reply. I think I'd found the issue. It seems to be the empty line that is ending up at the top of mail file. I removed that blank line out of one of the mail box files, and it started working without an issue. I'm not sure what is causing the empty line in the mbox file however. Most of my clients use pop3 to download their messages through dovecot. Could this be happening if the client only downloads part of their messages? Pretty easy for me to straighten out, but I didn't know if this was a bug that needed to be addressed. ... Miles Mawyer -=- Webmaster . Centralva.net ... ... mmawyer(a)rosecomputers.com ... ... 434.385.5053 ... -----Original Message----- From: Timo Sirainen [mailto:tss@iki.fi] Sent: Tuesday, June 28, 2005 7:52 AM To: Miles Mawyer Cc: dovecot(a)dovecot.org Subject: Re: [Dovecot] LF not found where expected On 27.6.2005, at 18:45, Miles Mawyer wrote: > pop3(mjmurray): Jun 27 11:16:38 Error: Error indexing mbox file > /var/mail/mjmurray: LF not found where expected These usually happen because the mbox file has two adjacent From-line, ie: From foo ... From bar ... Message-headers: ... That shouldn't happen normally though. Sounds like something is wrong with how your mails are written. Are all the software that are writing to the mbox using same lock methods? Anyway, 1.0-test/stable versions of Dovecot can handle the adjacent From-lines too without failing.

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[Dovecot] How to lock a user out?
by Kai Wang 29 Jun '05

29 Jun '05

Hi, We are considering to migrate to Dovecot. We can running uw-imap and have a local path which allow us to lock a user by creating a .lockdir directory in the user home directory and put our warning message to .lockdir/mbox. The locked user can still receive messages in ~/mbox. But can not access any messages except ~/.lockdir/mbox. I wonder if Dovecot has any similar feature which we can use to lock a user out without affecting the mail delivery? Kai Wang University of Calgary

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[Dovecot] 1.0-test74
by Timo Sirainen 28 Jun '05

28 Jun '05

http://dovecot.org/test/ Not much has happened, but the APPEND bugfix is important since it was broken in test73 (at least). Summer makes me tired and lazy. :( I've been trying to get keywords implemented in maildir. Hopefully works soon.. After that I'll create 1.0-stable2 (ugh. any other naming ideas?) branch of the code before merging the new master/config code. - Fixed APPEND .. I hope? At least works much better than before - pop3_uidl_format = %m now doesn't return broken 0 MD5 sums when the MD5 sum wasn't written in indexes for some reason (eg. appended/copied to INBOX with IMAP and trying to access mail with POP3). - Authentication cache wasn't working when Dovecot was used for proxying - Index cache file wasn't keeping track of how much of the file was deleted, so it may not have ever shrinked - Maildir+NFS: Fixed skipping mails when moving files from new/ to cur/ - Maildir: We didn't notice if messages were directly deleted from new/

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[Dovecot] imap corrupted indexes
by Emmett Pate 28 Jun '05

28 Jun '05

I've searched the archives and find a lot of references to corrupted indexes but can't seem to find any solutions. It seems like folks either have the problem or they don't. We recently migrated from a RedHat Linux server to an OpenBSD 3.7 server (both using dovecot). Imap was working flawlessly on the RedHat box but now gives numerous index errors. I then upgraded to dovecot-1.0-test66 compiled from ports - still no luck. Here's an example of the errors: Jun 27 12:02:23 mail dovecot: IMAP(epate): Corrupted transaction log file /home/epate/mail/.imap/INBOX/dovecot.index.log: Keyword record UIDs are broken Jun 27 12:02:24 mail dovecot: IMAP(epate): Lost transaction log file /home/epate/mail/.imap/INBOX/dovecot.index.log seq 7 I found references to "disabling indexing" but they don't say how. Would this be a reasonable temporary solution? Any other suggestions? Thanks for your help, Emmett Pate

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[Dovecot] Sudden IMAP problem - UID Errors
by Jamie Heckford 28 Jun '05

28 Jun '05

Hi, We have quite happily been running dovecot with no issues at all for approx. two years now and have had no problem whatsoever. Great work :) BUT (there is always a but!).... yesterday one of our users started complaining that they were having issues with their mail. I checked and although they can still view their IMAP mailbox ok it constantly throws up error messages such as: "The UID of a message changed unexpectedly. This typically indicates a server bug. Your program may not function properly after this. MsgSeqNum 131: Previous UID: 21402, New UID: 21555 Protocol: IMAP" and "Your server has reported a UID which does not comply with the IMAP standard. This typically indicates a server bug. Your program may not function properly after this." This is using Outlook 2003 as the IMAP client, and is only affecting a single user. Server is dovecot-0.99.14 running on FreeBSD 4.9-RELEASE #1: Thu Apr 15 10:00:08 GMT 2004 Anybody seen this before or have any suggestions? Also is there a way I can make the logging more verbose as I only get info on date/user/ip when they login. I did see a --raw-log or similar compile flag, is this whats needed? I suspect this is Outlook being stupid and not dovecot though. Any help would be greatly received. Many thanks! -- Jamie Heckford Network Manager Trident Microsystems Ltd. t: +44(0)1737-780790 f: +44(0)1737-771908 w: http://www.trident-uk.co.uk/

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