- dovecot - dovecot.org

[Dovecot] Dovecot freeze - 1.0 rc7 - FreeBSD 6.1
by Floris van den Berg 13 Oct '06

13 Oct '06

Hi, One of my customers currently experiences a dovecot freeze on random accassions. Trying to figure out what's wrong with no luck. Dovecot is running fine, up until it suddenly stops responding. The log file says: dovecot: Oct 05 10:12:26 Info: pop3-login: Disconnected: Inactivity: rip=82.217.29.*, lip=85.17.42.165 dovecot: Oct 05 10:12:29 Info: pop3-login: Disconnected: Inactivity: rip=86.87.152.*, lip=85.17.42.165 dovecot: Oct 05 10:12:30 Info: pop3-login: Disconnected: Inactivity: rip=62.131.94.*, lip=85.17.42.165 dovecot: Oct 05 10:12:30 Info: pop3-login: Disconnected: Inactivity: rip=62.131.94.*, lip=85.17.42.165 dovecot: Oct 05 10:13:17 Info: pop3-login: Disconnected: Inactivity: rip=86.88.180.*, lip=85.17.42.165 No other errors are logged. When i restart dovecot it runs fine again for some time. Sometimes it works for a few days, sometimes just a few hours. There's always a point where it freezes again. Reinstalled dovecot. Fiddled a bit with the auth_worker_max_count and auth_process_size settings. No change in behavior was observed. There's no out of the ordinary cpu or memory use. Any ideas? Floris

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Re: [Dovecot] Dovecot LDA
by Timo Sirainen 13 Oct '06

13 Oct '06

[repost] On Fri, 2006-10-06 at 21:00 -0500, Steven F Siirila wrote: > I am running Dovecot 1.0-rc6 along with dovecot-sieve from 2006-10-05 CVS. > I am calling dovecot deliver from Postfix (main.cf): > > mailbox_command = /opt/dovecot/libexec/dovecot/deliver > > Upon switching to dovecot deliver, I observed two problems: > > 1) An extraneous "From " header now appears at the top of each message > delivered, e.g.: > > From dovecot.deliver Fri Oct 06 19:59:57 2006 > From sfs(a)tc.umn.edu Fri Oct 6 19:59:57 2006 > Return-Path: <sfs(a)tc.umn.edu> > > Using Postfix delivery the first of these lines does not appear. > This, of course, confuses MUAs. Don't give F flag to Postfix's pipe command. Although this reminds me that the "dovecot.deliver" is wrong in there.. Hmm. I think I'll add a maildrop-compatible -f <envelope> parameter here. There, done in CVS. I'll also make 1.0rc8 release today. > 2) The "Content-Length:" header appears after a blank line, essentially > putting it into the RFC822 body, e.g.: > > User-Agent: Mutt/1.4.2.1i > X-UID: 11510 > Status: > X-Keywords: > > Content-Length: 200 > > test Are you sure it's a blank line? Dovecot adds lots of spaces after X-Keywords which could just make it look like that. If it really is a blank line, then it's most likely something else than Dovecot that changes the spaces that way.

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Re: [Dovecot] Automatically deleting Trash a la Courier
by Francisco Reyes 13 Oct '06

13 Oct '06

Timo Sirainen writes: > #expire = Trash 7 Spam 30 Does the above mean one will be able to indicate multiple folders to expire? That is great! Any thoughts on having a per mailbox setting? For ISPs , one may want to give users the option to enable/disable the feature and perhaps give them a choice of dates.. ie Trash 7 days or 30 days. Spam 1 day or 7 days.

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[Dovecot] Client giving "Alert: still here" with dovecot
by Francisco Reyes 13 Oct '06

13 Oct '06

I use Cone as my primary mail client and after some inactivity I keep getting "Alert: still here" when connected to my home/test dovecot server. Have tried with thunderbird leaving a connection inactive for a while and thunderbird gets no warnings. Any ideas what this may be?

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[Dovecot] oops
by Timo Sirainen 13 Oct '06

13 Oct '06

I forgot to install gpg to new dovecot.org, so some of my mails haven't reached this list. Will report them. But still some of mails did reach the list, so apparently there's a bug in my filtering scripts. Lets see if I can get that fixed now..

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[Dovecot] proxy mode
by Jernej Porenta 13 Oct '06

13 Oct '06

Hello, I've searched the documentation for IMAP/POP3 server with proxy feature, but wiki says that this is not fully implemented yet, but wiki page hasnt been updated for a while. So is there any change since then? Because we are looking for a solution to replace the perdition POP3/IMAP proxy in front of the current UW-IMAP servers and we would really appreciate this feature, since the documentation says that proxy implementation in dovecot does not create a process for every user (problem with large number of concurrent users). Thanks in advance, cheers, Jernej

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[Dovecot] trouble setting up dovecot on Ubuntu server with mysql backend
by Richard Harding 12 Oct '06

12 Oct '06

I'm trying to setup dovecot to use my postfixadmin user accounts on an ubuntu server. dovecot versions: dovecot-common 1.0.beta3-3ubuntu5.3 dovecot-imapd 1.0.beta3-3ubuntu5.3 I have gotten the account up and I can see dovecot query for the password for the user, but I get login failed. In my mail.log I only see this: dovecot: imap-login: Aborted login: user=<user(a)domain.com>, method=PLAIN, rip=IP_ADDR, lip=IP_ADDR, TLS I can't see to find any other information that can help me figure out why it won't accept the password. The passwords in mysql are md5crypt passwords according to postfixadmin's conf file. // In what way do you want the passwords to be crypted? // md5crypt = internal postfix admin md5 // system = whatever you have set as your PHP system default // cleartext = clear text passwords (ouch!) $CONF['encrypt'] = 'md5crypt'; In my old setup I have auth_mechanisms just set to plain. Any help is greatly appreciated. I feel like I'm just missing one thing that get the passwords to be accepted. Thanks...Rick dovecot.conf protocols = imap imaps ssl_disable = no log_timestamp = "%Y-%m-%d %H:%M:%S " mail_extra_groups = mail mail_debug = yes default_mail_env = maildir:/home/vmail/%d/%n/ protocol imap { } protocol pop3 { } auth default { mechanisms = plain login digest-md5 passdb sql { args = /etc/dovecot/dovecot-sql.conf } userdb sql { args = /etc/dovecot/dovecot-sql.conf } socket listen { client { user = postfix group = postfix path = /var/spool/postfix/private/auth mode = 0660 } } mechanisms = digest-md5 plain user = root } plugin { } dovecot-sql.conf driver = mysql connect = host=127.0.0.1 user=postfix password=$PASS dbname=postfix password_query = SELECT password FROM mailbox WHERE username = '%u' user_query = SELECT maildir, 106 AS uid, 112 AS gid FROM mailbox WHERE username = '%u'

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[Dovecot] Filtering Mails - how?
by Daniel Seichter 12 Oct '06

12 Oct '06

Hello, I've got some problems about understanding, how to filter my incoming mails. I am using dovecot 1.0.beta3 (ubuntu server) and want to implement a filter, where I can filter all my incoming messages (like the ones from the dovecot ml) to special folders within the mailbox of each user (for each user a special set of filters). Is there a chance to do this in dovecot or have I to use another program? My system works like: Fetchmail fetches mails from two mailservers and deliver them to the users inbox Procmail send them to spamassassin for checking about spam Dovecot provides access to the mailbox with IMAP Hope there is an easy way like module for webmin or something else. Thank you Daniel

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[Dovecot] deliver + xfilter
by Neal Becker 12 Oct '06

12 Oct '06

I'm currently using maildrop to do delivery, because I like to use it's xfilter to pipe through spamc. I don't see a similar option for dovecot's deliver. Is there something? It would be nice to use deliver, since I use dovecot for reading mail.

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[Dovecot] 1.0rc8 status report
by David Lee 12 Oct '06

12 Oct '06

A quick status report on how 1.0rc8 behaved in service for a few hours with several hundred simultaneous users, at a site very new to dovecot. Oh, and a question at the end. Summary: Reasonable for a first shot but one significant problem, requiring backing off. Background: We have a long-established UW-IMAP service for a user population of about 20,000 based on a few Linux (Redhat) machines running IMAP/POP and inbound delivery. We try to ensure, but cannot guarantee, that all activity for a given user takes place within one machine. Each machine mounts the INBOX area ("/var/spool/mail"; traditional UNIX mbox) via NFS with tight NFS arguments ("noac,actimeo=0", etc.) and similarly mounts the users' folder areas which are subdirs of their home directories. (We know that Mark Crispin recommends against NFS for UW-IMAP, but we seem to have been OK.) There is also some processing: .forward->"| procmail"->folder-or-inbox Each machine typically has several hundred simultaneous IMAP connections. This has basically worked well, but the UW-IMAP loading has been heavy. The plan: In an ideal world, I would like to restructure the above. But our world is not ideal, so we have to stay with the structure. But we are looking for a transparent (user perspective) migration to dovecot. The dovecot experience: Yesterday, I quietly adjusted a DNS entry to redirect one of the live email hostnames at an additional machine in the "farm", running dovecot 1.0rc8, including deliver/LDA (and taking into account some post-rc7 dovecot changes in this area). On an earlier, smaller-scale test, one problem had been some periods of "temporary authentication failures". Increasing "login_processes_count" and "login_max_processes_count" (each by a factor of 8) seems to have fixed this, and I'm not aware of any problems in that area yesterday. It basically went well. But just over two hours hours later I had to back off, because of a significant dovecot problem, namely that dovecot crashed, almost silently. The only traces of this event in the log file seem to be: Oct 10 16:26:12 [...] dovecot: child 24525 (login) returned error 89 Oct 10 16:26:14 [...] dovecot: Login process died too early - shutting down Any thoughts? Any fixes? If the problem needs debugging (or additional data/log collection) how might that be attempted in this environment? -- : David Lee I.T. Service : : Senior Systems Programmer Computer Centre : : Durham University : : http://www.dur.ac.uk/t.d.lee/ South Road : : Durham DH1 3LE : : Phone: +44 191 334 2752 U.K. :

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