- dovecot - dovecot.org

[Dovecot] noob - Outlook Duplicate Problem Question
by Jeff Ramsey 17 Nov '04

17 Nov '04

Hi, I use dovecot 0.99-11 with sendmail latest, and clamav-milter, and spamass-milter. Whole setup works great. We only use dovecot for pop3, no imap. We use primarily Outlook 2000-2003 for a client. I have a couple of users who prefer to leave a copy of each message on the server. I read the archives about the Outlook Duplicate Message problem regarding the setting 'Leave a copy on the Server'. I read that someone fixed this by changing the order of the UIDL from datestamp.message# to message#.datestamp. My question is if I make that change in my source for 0.99-11, will the 1.0 version have a fix for this included, or should I look for another pop3 server? I'd like to continue to use dovecot as it is very light and fast, but I'm trying to eliminate using source compiled binaries on my production servers, and letting YUM do my updates for me. I can compile this version from source, using the fix that was mentioned in the September Archives for this list, if I know that the problem (which is an MS problem, go figure) will be gone in future RPM binary packages. Thanks for any info or help. Jeff Ramsey MIS Administrator Tubafor Mill, Inc.

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[Dovecot] 1.0-test52
by Timo Sirainen 16 Nov '04

16 Nov '04

http://dovecot.org/test/ I have very high hopes that mbox support is finally stable in this version. I've been running some stress tests for an hour now without it breaking (well, there are two potential problems but I think they were just fixing previous breakages). Before it took only a few minutes at most to break. - fixes several mbox syncing problems, especially expunges potentially deleted parts of wrong messages - maildir: readdir() race conditions are fixed by keeping dovecot-uidlist lock a bit more than before (it really doesn't matter in most cases, we did this before as well but slightly less often. so this really fixes just the problematic cases without giving hardly any more overhead than there was before) - index header changed a bit. will rebuild indexes and print some cache indexid errors.. i should hide these errors too.. - fixed memory leaks in dovecot-auth

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[Dovecot] dovecot and outlook express and large messages
by Daniel 16 Nov '04

16 Nov '04

Hi I have been using Dovecot 0.99.11 and 1.0-test52 on a server with about 2000 accounts. All has been working good until a few days ago. Now I'm stuck and can't work out whats going on. The problem seems to be only with Outlook/outlook express clients. If the mail is large with an attachment its fails. After you hit the send and receive button after a while Outlook express gives the error "Your POP3 server has not responded in 60 seconds". Network activity seem to be minimal between the client and the server. There is no log entry out of the ordinary to say what went wrong. I have tried out a number of changes to the dovecot.conf file, none make any difference. Thanks for any help. Regards Daniel Rowe

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[Dovecot] eudora issue
by kent crispin 16 Nov '04

16 Nov '04

There seems to be a protocol mismatch between eudora and dovecot when using pop. The login interchange with, for example, mozilla, is as follows: MO: [connects] DC: +OK dovecot ready. MO: CAPA DC: +OK DC: CAPA DC: TOP DC: USER DC: UIDL DC: RESP-CODES DC: STLS DC: SASL PLAIN DC: . MO: USER yyy DC: +OK MO: PASS xxxxxxxx DC: +OK Logged in. But with eudora, with apparently equivalent configuration, the sequence is as follows: EU: [connects] DC: +OK dovecot ready. EU: CAPA DC: +OK DC: CAPA DC: TOP DC: USER DC: UIDL DC: RESP-CODES DC: STLS DC: SASL PLAIN DC: . EU: auth PLAIN AG1tcgBtaXN0bGV0b2U= DC: -ERR Unsupported authentication mechanism. At this point eudora reports an error back to the user, and the connection fails. Can anyone shed any light on this? Is it just that there is an incompatibility in how eudora and dovecot view the protocol? Or is there some configuration option I need to tweak to make things work? Thanks for any help. Kent -- Kent Crispin kent(a)songbird.com SIP: 81202(a)fwd.pulver.com

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[Dovecot] (mail_index_expunge): assertion failed: (!t->view->external) Is this a bug?
by Daniel 16 Nov '04

16 Nov '04

Hi I am getting this a lot. Is this a bug? (mail_index_expunge): assertion failed: (!t->view->external) can be fixed by deleting the /home/<user>/mail/.imap directory. It has happened a few times with me. Regards Daniel Rowe

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[Dovecot] (mail_index_expunge): assertion failed: (!t->view->external)
by Daniel 16 Nov '04

16 Nov '04

Hi (mail_index_expunge): assertion failed: (!t->view->external) can be fixed by deleting the /home/<user>/mail/.imap directory. It has happened a few times with me. Regards Daniel Rowe

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[Dovecot] RE: dovecot and outlook express and large messages
by Daniel 16 Nov '04

16 Nov '04

Hi Dose dovecot have problem working on a eth0:1 alias type interfaces? I just wondering if this could be my problem? Dovecot would do the authentication correctly and send small email but as soon as any load was put on it like downloading a mail with a large attachment it would fail. All network traffic would stop. No errors in the logs. As soon as I move the service to listen on a non alias interface eth0 all works fine. Very strange. I have taken a good look at our server to check that is not anything. I'm pretty sure we are good. I have also rebooted the box to see if that would fixed it which it didn't. Regards Daniel

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[Dovecot] dovecot with different POP3S / IMAPS Certs
by Vincent Jaussaud 15 Nov '04

15 Nov '04

Hi, I'm new to dovecot, but actually planning to switch a wide WU-IMAP/POP installation to dovecot. With WU-IMAP, a different certificate can be used by pop3s and imaps, allowing both server to be reachable through different hostnames,without SSL complaints on the client side; this is mostly used for scalability. I'm trying to do the same thing with dovecot; that is having dovecot using a different certificate for it's pop3s instance and imaps instance. Unfortunately, in dovecot configuration file, only one certificate can be set; used by both pop3s / imaps. Any idea of the best way to handle this ? Thanks ! Vincent. -- Vincent Jaussaud Kelkoo.com Security Manager email: tatooin(a)kelkoo.com GPG key: 1024D/3BFE3FC7 2002-02-07 "Those who desire to give up freedom in order to gain security will not have, nor do they deserve, either one." -- President Thomas Jefferson. 1743-1826

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[Dovecot] dovecot-auth leaves zombies
by Stefano Maffulli 15 Nov '04

15 Nov '04

Hi all, I have installed and configured dovecot on two different machines, so I don't have much experience with this server. One installation is giving me serious problems, that I have a hard time tracing. From the beginning: the machine is a debian mix (stable/unstable) dovecot 0.9.11, real users authenticated via pam_ldap/nss_ldap. It serves ~70 users, all of them using Outlook, Outlook Express and IMP. The system seems to work just fine for a while, but after a some time, some dovecot-auth zombies start appearing. I can't really understand who/what is causing them. The only thing I see in the logs are these lines, very sporadically, but I still couldn't trace when they happened. Nov 5 09:40:28 csv-mail-01 dovecot-auth: nss_ldap: reconnecting to LDAP server... Nov 5 09:40:28 csv-mail-01 dovecot-auth: nss_ldap: reconnected to LDAP server after 1 attempt(s) (BTW, also apache2 sends similar messages, I don't know if they are related) Nov 5 09:52:14 csv-mail-01 apache2: nss_ldap: reconnecting to LDAP server... Nov 5 09:52:14 csv-mail-01 apache2: nss_ldap: reconnected to LDAP server after 1 attempt(s) After a while dovecot stops authenticating and needs to be killed and restarted (/etc/init.d/dovecot stop takes some time to actually stop dovecot processes). Do you have any clue of what is going on and where I can investigate further? I would like to say 'it's Outlook's fault', but I really can't. Any hint appreciated. regards stef

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RE: [Dovecot] Fatal: chdir(homedir) failed: Permission denied
by Καράμπης Παναγιώτης 15 Nov '04

15 Nov '04

matthias thnx a lot for your hint. We are 2 admins on this box and this makes things complicated. /home 's permissions where 705 and that's the reason for this. Solved thank u again mate:) ________________________________ Από: Matthias Andree [mailto:matthias.andree@gmx.de] Αποστολή: Κυρ 14/11/2004 1:52 πμ Προς: Καράμπης Παναγιώτης Κοιν.: dovecot(a)dovecot.org Θέμα: Re: [Dovecot] Fatal: chdir(homedir) failed: Permission denied Καράμπης Παναγιώτης <epp719(a)epp.teicrete.gr> writes: > hello all i run dovecot as my imap server on my university and squirrel as webmail. But squirrel returns an error: > ERROR : Connection dropped by imap-server > CAPABILITY > > i tail my /var/log/dovecot and this is the output with whatever user i try to log in and view mails: > > dovecot: Nov 13 17:51:27 Fatal: chdir(/home/epp719) failed with uid 2975: Permission denied > dovecot: Nov 13 17:51:27 Error: child 17554 (imap) returned error 89 > ---------------------------------------------------------------------- > i give the: > root@(host edited):/root# ls -lad /home/epp719 Panagiotis, if the user epp719 and dovecot are in a common group, that may be the cause why it isn't working. > drwx---r-x 4 epp719 users 368 2004-11-13 17:49 /home/epp719 > and directory exists i tried also changing permissions on dir but same things happen. > both .qmail and Maildir exist in the home directory. What are the permissions of the / and /home directories? ls -lad /home -- can dovecot execute the / and /home directories? If these are drwx------ or similar, that might be the problem. Hope that helps. -- Matthias Andree

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