February 2005 - dovecot

[Dovecot] [PATCH, RFC] add APOP authentication mechanism
by Andrey Panin 14 Aug '17

14 Aug '17

Hello all, this patch add APOP authentication mechanism to dovecot 1.0-test23. Please take a look. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

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[Dovecot] POP (dot) locks
by Christian Balzer 09 Apr '06

09 Apr '06

Hello, just to soothe my paranoia from many years of qpopper usage, which enforces solitary access to a POP mailbox. Only one login per user is possible at the same time and if a session terminates w/o qpopper being properly notified it will remain locked for some time, 30 minutes by default. With dovecot (0.99.10.4) one can login multiple times (using POP, with IMAP of course this comes as no surprise :) and thus I presume this bit from the configuration: --- # Should we create dotlock file even when we want only a read-lock? Setting # this to yes hurts the performance when the mailbox is accessed simultaneously # by multiple processes, but it's needed for reliable reading if no other # locking methods are available. #mbox_read_dotlock = no --- means that if the only other reading accesses to a (mbox style in this case here) mailbox are via other dovecot processes everything will be fine? Regards, Christian Balzer -- Christian Balzer Network/Systems Engineer NOC chibi(a)gol.com Global OnLine Japan/Fusion Network Services http://www.gol.com/

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RE: [Dovecot] IMAP login name conversion
by Zoong Pham 24 Feb '06

24 Feb '06

> -----Original Message----- > From: Timo Sirainen [mailto:tss@iki.fi] > Sent: Tuesday, 1 June 2004 9:39 PM > To: Zoong Pham > Cc: dovecot(a)dovecot.org > Subject: Re: [Dovecot] IMAP login name conversion > > What passdb and userdb do you use? Unless you're authenticating from > SQL you probably have to modify the source. Let me explain: My server runs OpenBSD-3.5 and Sendmail. We host few virtual domains. Local accounts have login names in this format: login-domain_abc_xyz For example: joedirt-joedomain_com_au, info-adomain_com, info-otherdomain_com That way login accounts are unique across all the virtual domains. I use the OpenBSD pre-compiled dovecot-0.99.10p2. It is set to use "auth_passdb = passwd" and "auth_userdb = passwd" I can use mutt to access my mailbox via IMAPS with login name format joedirt-joedomain_com_au. Other users use different MUA like Outlook and prefer to login with their email addresses (joedirt(a)joedomain.com.au, info(a)adomain.com, info(a)otherdomain.com) We use squirrelmail for webmail. I modified squirrelmail to automatically convert login name from format of joedirt(a)joedomain.com.au to joedirt-joedomain_com_au. So if users use squirrelmail, they can just login with their email addresses. My question is how to achieve the same thing with other MUAs like Outlook? Do I have to modify dovecot source? Can I use LDAP or SQL instead? Note that we are using Sendmail and prefer it than othe MTA. I have looked at the Wiki, specially the "DovecotOpenLdap" but am still confused. Thanks Zoong

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[Dovecot] Dovecot, Outlook Express and new accounts
by news.gmane.org 12 Nov '05

12 Nov '05

I have come across a strange situation, involving new accounts. I am running Dovecot 0.99.10-5 on Fedora Core 2. Dovecot is configured to use pam for authentication, and the dovecot pam service is configured to use pam_mkhomedir. When an account is created and the user logs in through SquirrelMail, there is no problem. The standard folders are available - Inbox, Drafts, Sent Items and Trash. When logging in through Outlook Express first, it gives the following error:- The server did not respond to this IMAP command before the connection was terminated. Configuration: Account: mail.server Server: mail.server User name: username Protocol: IMAP Port: 143 Secure(SSL): 0 Code: 800ccc0f A packet trace shows the following:- <<< * OK dovecot ready. >>> 008E CAPABILITY <<< * CAPABILITY IMAP4rev1 SORT THREAD=REFERENCES MULTIAPPEND UNSELECT LITERAL+ IDLE CHILDREN LISTEXT LIST-SUBSCRIBED STARTTLS AUTH=PLAIN <<< 008E OK Capability completed. >>> 008F LOGIN "username" "password" <<< 008F OK Logged in. >>> 008G IDLE <<< + idling >>> DONE <<< 008G OK Idle completed. 008H LIST "" "*" Connection to host lost. My suspicion that Outlook Express is not intelligent enough to create the folders, although the sudden connection drop might indicate a bug. If it is not a bug, is there a workaround? Regards -- Chris Hills IT Services North East Worcestershire College

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[Dovecot] [Fwd: Dovecot disconnecting users at login for inactivity]
by Chris Liljenstolpe 25 Oct '05

25 Oct '05

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[Dovecot] problems with ldap auth
by Nuno Lopes 10 May '05

10 May '05

I'm trying Dovecot v1.0-test43 with ldap authentication but can't seem to make it work. I'm getting the following errors in the log: dovecot: Sep 16 19:50:09 Info: Dovecot v1.0-test43 starting up dovecot: Sep 16 19:50:10 Error: Auth process died too early - shutting down What can I do to see where the error is? I have this configuration working with dovecot 0.99.xx . And if I replace the ldap authentication scheme with another one it starts up right. Following some past mailing list sugestions I've also tried removing most of the auth modules from the compilation but it made no diference. You can see my configuration files in: http://iluvatar.portugalmail.pt/dovecot/dovecot.conf http://iluvatar.portugalmail.pt/dovecot/dovecot-ldap.conf (I've intalled the binaries in /opt/dovecot) Don't know how much more data I can provide to help finding out what the problem is here (I think this won't be enough unless there's a known bug). Thanks, -- Nuno Lopes

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[Dovecot] automatic flag updates
by Aaron VanDevender 24 Mar '05

24 Mar '05

Is there a way to get dovecot to send automatic flag updates? I notice that when I have two clients connected and one of them reads a new message, the server sends a status update which contains the number of unseen messages, but doesn't specifically say which ones have changed. I think the solution to this problem, while not wasting bandwidth, is to issue a unilateral FETCH FLAGS response whenever a flag changes. There doesn't seem to be a way to get dovecot (I'm using 0.99.10) to do this. Can the 1.0-test versions do this? cya .sig

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[Dovecot] corruption and errors in dovecot-stable
by Nicholas Riley 17 Mar '05

17 Mar '05

Hi, We switched from dovecot 0.99.something to 1.0-stable (on FreeBSD 4.10) a few days ago and have been seeing many errors and one corrupted mailbox so far. Almost everyone uses mbox format, and most users primarily use SquirrelMail; I use Apple Mail and Thunderbird, as well as accessing the mailboxes locally with Mutt, and have not noted any visible problems. There have been several of these messages: dovecot: Feb 21 11:40:06 Error: IMAP(njr): mbox sync: UID inserted in the middle of mailbox /usr/home/njriley/mail/lists/trac (5308 > 1151) dovecot: Feb 21 22:57:13 Error: IMAP(njr): mbox sync: UID inserted in the middle of mailbox /usr/home/njriley/mail/lists/trac (6458 > 1151) dovecot: Feb 22 08:37:03 Error: IMAP(njr): mbox sync: UID inserted in the middle of mailbox /usr/home/njriley/mail/lists/reportlab-users (5162 > 3812) Others: dovecot: Feb 22 11:44:17 Error: IMAP(njr): file mbox-sync-parse.c: line 221 (parse_x_uid): assertion failed: (!ctx->sync_ctx->sync_restart) dovecot: Feb 22 11:44:17 Error: child 19931 (imap) killed with signal 6 dovecot: Feb 25 06:26:09 Error: IMAP(kbode): file istream-raw-mbox.c: line 383 (istream_raw_mbox_get_body_size): assertion failed: (rstream->body_offset != (uoff_t)-1) dovecot: Feb 25 06:26:09 Error: child 83423 (imap) killed with signal 6 (I think this refers to the mailbox that was corrupted) dovecot: Feb 25 12:30:40 Error: IMAP(sachs): Transaction log file /home/sachs/Mail/.imap/INBOX/dovecot.index.log: invalid indexid (1109356120 != 1108933119) dovecot: Feb 25 12:30:40 Error: IMAP(sachs): Corrupted transaction log file /home/sachs/Mail/.imap/INBOX/dovecot.index.log: Extension record update update without intro prefix dovecot: Feb 25 12:30:41 Error: IMAP(sachs): Transaction log file /home/sachs/Mail/.imap/INBOX/dovecot.index.log: marked corrupted dovecot: Feb 25 12:39:34 Error: IMAP(sachs): Transaction log file /home/sachs/Mail/.imap/INBOX/dovecot.index.log: invalid indexid (1109356120 != 1108933119) dovecot: Feb 25 12:39:34 Error: IMAP(sachs): Lost transaction log file /home/sachs/Mail/.imap/INBOX/dovecot.index.log seq 2 dovecot: Feb 25 12:39:41 Error: IMAP(sachs): Transaction log file /home/sachs/Mail/.imap/INBOX/dovecot.index.log: invalid indexid (1108933119 != 1109356120) I am currently reinstalling 0.99.14, but it would be nice to be able to switch to a 1.0-derived version again - we have to run two copies of 0.99.x to get what we want. If there is any additional testing I can do to help fix these problems, please let me know. Thanks, -- Nicholas Riley <njriley(a)uiuc.edu> | 4111 Siebel Center Department of Computer Science | 201 N. Goodwin Ave. and Medical Scholars Program | Urbana, IL 61801-2302 Univ. of Illinois at Urbana-Champaign | +1 217 244 2274

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[Dovecot] Problems with Outlook 2002 SP3 & Dovecot 0.99.13 Redux
by Md 16 Mar '05

16 Mar '05

Hi, I posted this question a while back and didn't get much response. Since then, I've done a bit more experimenting and wonder if someone can help me move forward towards resolution. The orignal question... > I'm running Dovecot0.99.13 on Fedora Core 3 and things work fine when using either > Thunderbird 1.0 or Outlook Express as IMAP clients. Outlook (2002 SP3) on the other hand > runs incredibly slowly, or just outright hangs. I've discovered that if I delete and recrete .../Maildir in the user account such that the directory exists but is empty, then outlook seems to behave. If on the other-hand, I try to create a folder, with outlook, outlook will hang and the folder won't be created. If I create the folder with another client and then go back to using outlook, outlook will hang. I've taken some network traces and have annotated them here... Starting with an empty "Maildir" Time Source Destination Protocol Info 8.515435 192.168.73.3 192.168.73.1 IMAP Response: * OK dovecot ready. 8.516056 192.168.73.1 192.168.73.3 IMAP Request: 0000 CAPABILITY 8.516539 192.168.73.3 192.168.73.1 IMAP Response: * CAPABILITY IMAP4rev1 SORT THREAD=REFERENCES MULTIAPPEND UNSELECT IDLE CHILDREN LISTEXT LIST-SUBSCRIBED NAMESPACE STARTTLS AUTH=PLAIN 8.516733 192.168.73.1 192.168.73.3 IMAP Request: 0001 LOGIN "xxx" "xxx" 8.594634 192.168.73.3 192.168.73.1 IMAP Response: 0001 OK Logged in. 8.640521 192.168.73.3 192.168.73.1 IMAP Response: + idling 8.640709 192.168.73.1 192.168.73.3 IMAP Request: DONE 8.640983 192.168.73.3 192.168.73.1 IMAP Response: 0002 OK Idle completed. 8.641165 192.168.73.1 192.168.73.3 IMAP Request: 0003 LIST "" "" 8.641315 192.168.73.3 192.168.73.1 IMAP Response: * LIST (\Noselect) "." "" 8.642387 192.168.73.1 192.168.73.3 IMAP Request: 0004 LIST "" "INBOX" 8.642956 192.168.73.3 192.168.73.1 IMAP Response: * LIST (\HasNoChildren) "." INBOX 8.657424 192.168.73.1 192.168.73.3 IMAP Request: 0005 LSUB "" "*" 8.657925 192.168.73.3 192.168.73.1 IMAP Response: 0005 OK Lsub completed. 8.660627 192.168.73.1 192.168.73.3 IMAP Request: 0006 IDLE 8.660973 192.168.73.3 192.168.73.1 IMAP Response: + idling Now try to create a sub-folder using outlook: 0.000000 192.168.73.1 192.168.73.3 IMAP Request: DONE 0.000587 192.168.73.3 192.168.73.1 IMAP Response: 0006 OK Idle completed. 0.000910 192.168.73.1 192.168.73.3 IMAP Request: 0008 IDLE 0.001113 192.168.73.3 192.168.73.1 IMAP Response: + idling And there outlook just hangs. Killing outlook and starting it again gives this trace: 5.110260 192.168.73.1 192.168.73.3 TCP 1953 > imap [SYN] Seq=0 Ack=0 Win=64240 Len=0 MSS=1460 5.111826 192.168.73.3 192.168.73.1 IMAP Response: * OK dovecot ready. 5.112139 192.168.73.1 192.168.73.3 IMAP Request: 0000 CAPABILITY 5.112600 192.168.73.3 192.168.73.1 IMAP Response: * CAPABILITY IMAP4rev1 SORT THREAD=REFERENCES MULTIAPPEND UNSELECT IDLE CHILDREN LISTEXT LIST-SUBSCRIBED NAMESPACE STARTTLS AUTH=PLAIN 5.112798 192.168.73.1 192.168.73.3 IMAP Request: 0001 LOGIN "xxx" "xxx" 5.127237 192.168.73.3 192.168.73.1 IMAP Response: 0001 OK Logged in. 5.135355 192.168.73.1 192.168.73.3 IMAP Request: 0002 IDLE 5.137334 192.168.73.3 192.168.73.1 IMAP Response: + idling 5.138060 192.168.73.1 192.168.73.3 IMAP Request: DONE 5.138273 192.168.73.3 192.168.73.1 IMAP Response: 0002 OK Idle completed. 5.138505 192.168.73.1 192.168.73.3 IMAP Request: 0004 IDLE 5.138646 192.168.73.3 192.168.73.1 IMAP Response: + idling And there outlook just hangs again. Any ideas or help would be greatly appreciated. Thanks, Md

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[Dovecot] imap-login zombies
by Robin Breathe 16 Mar '05

16 Mar '05

Running dovecot-0.99.13 on Solaris9/Sparc with ~25k users, we are having regularly recurring problems with large numbers imap-login/pop3-login drones, cycling on poll(). Over the course of 1-2 days, the number of such processes slowly rises to >1000, exhausts resources, and necessitates that dovecot be restarted (having killed all current active and zombie child processes). Nothing of interest seems to be logged with the possible exception of a reasonably high number of aborted logins (~10/hour). Can anyone offer any guidance as to how to track down this bug and help get it resolved? Any help would be much appreciated, as we would very much like to see this resolved in the 0.99 branch. Regards, Robin

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