- dovecot - dovecot.org

Re: [Dovecot] dovecot genesis v2.0.X
by Dennis Clarke 18 Oct '10

18 Oct '10

> On Mon, 2010-10-18 at 13:46 -0400, Dennis Clarke wrote: > >> > I am running 2.0.5 (svn repository) in production for about a >> > thousand users without major issues. >> >> Please Sir, on what OS and architecture ? > > I think the stability has less to do with that, and more to do with what > parts of Dovecot you want to use. If your test setup works fine with the > most common clients you use, and it survives a bit of stress testing, it > should work fine. > > The things I still mostly worry about are some rare errors/crashes. There is still a rather large number of Solaris 8 Sparc servers out there running in production and based on the conversations I have had with some sysadmins they will upgrade them when the smoke comes out. That could be another five years. So, before you say "stability has less to do with that" you should see the horrendous work it takes to port an app from the open source world ( usually Linux people with tons of Linux-isms/GCC-isms in it ) over to an old POSIX/XPG4 ( POSIX.1-1990, POSIX.2-1992, POSIX.1b-1993, POSIX.1c-1996 etc ) compliant UNIX. My coffee cup needs whiskey some days ;-) -- Dennis Clarke dclarke(a)opensolaris.ca <- Email related to the open source Solaris dclarke(a)blastwave.org <- Email related to open source for Solaris

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Re: [Dovecot] dovecot genesis v2.0.X
by Dennis Clarke 18 Oct '10

18 Oct '10

> > > I am running 2.0.5 (svn repository) in production for about a > thousand users without major issues. Please Sir, on what OS and architecture ? -- Dennis

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[Dovecot] Split plugin config in diferents files
by Antonio Perez-Aranda 18 Oct '10

18 Oct '10

Hi all, Is possible to split dovecot.conf with a very very big plugin {} section? Maybe, some like apache with sites-enabled.d Then, we could have a file per plugin.

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[Dovecot] Filtering IP address connections ?
by Frank Bonnet 18 Oct '10

18 Oct '10

Hello Is it possible to refuse connections from some IP address in Dovecot configuration ? Thanks

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[Dovecot] Version checks and API/ABI/sonames
by Axel Thimm 18 Oct '10

18 Oct '10

Hi, pigeonhole/sieve check against dovecot's version comparing to what they have been built against. This means that whenever there is a minor version of dovecot released pigeonhole/sieve need to be rebuilt and then redistributed to users even if there is no need for it (I'm thinking of packaged versions of dovecot and dovecot-pigeonhole). Could the checks become ABI-version aware, so that rebuilds and redistribution are kept to a minimum? Maybe Timo is already keeping API/ABI stability between minor updates, so the version checks should be against the first two version components only. Thanks! -- http://thimm.gr/ - http://ATrpms.net/

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[Dovecot] Retrieving unread message count
by Brandon Davidson 18 Oct '10

18 Oct '10

Timo, I'm working with a webmail client that periodically polls unread message counts for a list of folders. It currently does this by doing a LIST or LSUB and then iterating across all of the folders, running a SEARCH ALL UNSEEN, and counting the resulting UID list. Eventually I'd like to see it using RFC5819 LIST-EXTENDED, but that requires a fair bit of work. In the mean time I'm trying to speed up the existing iteration. I've got it working using 'STATUS "mailbox" (UNSEEN)', but the language in RFC3501 suggest that this may be slow. There is a counterproposal to use RFC4731 ESEARCH and do 'SELECT "MAILBOX"'; 'SEARCH RETURN (COUNT) UNSEEN'. >From an IMAP server perspective, which do you anticipate would be faster? >From a client perspective it seems like STATUS would be better since it involves less round-trips to the server and less output parsing, but given the warnings in the RFCs there is concern that it is in fact be more expensive. -Brad

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Re: [Dovecot] Limit access to dovecot by domains?
by Alan Brown 18 Oct '10

18 Oct '10

> Date: Fri, 15 Oct 2010 15:09:57 +1100 > From: Jobst Schmalenbach <jobst(a)barrett.com.au> > Subject: Re: [Dovecot] Limit access to dovecot by domains? > To: Timo Sirainen <tss(a)iki.fi> > Cc: dovecot(a)dovecot.org > Message-ID: <20101015040957.GA3232(a)senna.barrett.com.au> > Content-Type: text/plain; charset=us-ascii > > On Thu, Oct 14, 2010 at 03:31:23PM +0100, Timo Sirainen (tss(a)iki.fi) wrote: > > > On Wed, 2010-10-13 at 18:08 +1100, Jobst Schmalenbach wrote: > > > > >> > > Maybe I could include a script that would check the reverse DNS record > >> > > of a connected IP and then I could filter????? > > > > > > Wonder if tcpwrappers would work? You could use that with Dovecot v2.0. > > I have read a few things about this, it looks like its not so good to do it this way, > besides having proper written daemons running from (x)inted is a system overhead. Huh? What are you talking about? If dovecot has tcpwrapper support and is compiled -DTCPWRAP then it can run as a standalone daemon and will consult the hosts.allow/deny files, no need for inetd of any type. man 3 hosts_access man 5 hosts_access for details on tuning. Tcpwrapper tuning is far more powerful than people realise.

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[Dovecot] strange behavior with virtual accounts and imap
by vladi 18 Oct '10

18 Oct '10

hi, I've recently setup new mailserver with dovecot and postfix. They use mysql and virtual accounts. All works perfectly except.. There is one group account named info, all the mail is forwarded to every other account. Users download their mail via Outlook (2003, 2007) with imap. If someone downloads email send to info and delete it after that. Outlook stoke the message and doesn't delete it immediately, thats normal. But if later someone else downloads his mail and it have received the same letter to info. The message appear as if it's already deleted by that user. But is supposed to be unreaded. I cant find any info why is this happening. Please help

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[Dovecot] dovecot-lda crash
by Luca Palazzo 18 Oct '10

18 Oct '10

Hi Timo and All, we had to revert back to LDA delivery instead of lmtp proxy (too buggy). We nare now experiencing process segfaults: [503564.305998] dovecot-lda[2415]: segfault at 48 ip b779e5b9 sp bfaf0ba8 error 6 in libdovecot-storage.so.0.0.0[b774b000+b9000] [503615.786468] dovecot-lda[2405]: segfault at 48 ip b77815b9 sp bfc7fa58 error 6 in libdovecot-storage.so.0.0.0[b772e000+b9000] [503615.928514] dovecot-lda[2244]: segfault at 48 ip b772c5b9 sp bff73e08 error 6 in libdovecot-storage.so.0.0.0[b76d9000+b9000] [503617.161419] dovecot-lda[2953]: segfault at 48 ip b774f5b9 sp bfa48ec8 error 6 in libdovecot-storage.so.0.0.0[b76fc000+b9000] [503618.649389] dovecot-lda[2857]: segfault at 48 ip b769a5b9 sp bff10838 error 6 in libdovecot-storage.so.0.0.0[b7647000+b9000] [503624.711122] dovecot-lda[3178]: segfault at 48 ip b76cd5b9 sp bf9f0928 error 6 in libdovecot-storage.so.0.0.0[b767a000+b9000] [503629.479673] dovecot-lda[3159]: segfault at 48 ip b76c05b9 sp bf910708 error 6 in libdovecot-storage.so.0.0.0[b766d000+b9000] .... What information do you need to look at it? Thanks Luca

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[Dovecot] quota sql dict permissions dilemma
by LEVAI Daniel 18 Oct '10

18 Oct '10

Hi! I'm trying to set up SQL based dict quota. The quota is working, gets updated but I had to configure really loose file permission to make it work: dovecot.conf: dict { quota = pgsql:/etc/dovecot/dovecot_dict-sql.conf } service dict { unix_listener dict { mode = 0660 group = vmail # sidenote: I noticed that writing the number equivalent # of 'vmail' here does not work. Why? } } # ~ls -la /etc/dovecot/dovecot_dict-sql.conf -rw-r----- root vmail dovecot_dict-sql.conf # ~ls -la /var/dovecot/dict srw-rw---- root vmail /var/dovecot/dict= Every virtual user lookup returns a 'gid' field, and it is always 'vmail' (actually it is the number equivalent of 'vmail'). Despite that the imap process should run as the 'uid' and 'gid' values returned from the userdb, it can not read the dict config file: dovecot.log: dict: Error: Can't open configuration file /etc/dovecot/dovecot_dict-sql.conf: Permission denied dict: Error: Failed to initialize dictionary 'quota' lda(<username>): Error: read(/var/dovecot//dict) failed: Remote disconnected Now I must set o+r to the config file, which I really don't want to, given that it contains the db username and password. Strange thing is that the group r/w permission is enough for the dict= socket, and it doesn't need world-wide permissions at all. Daniel -- LÉVAI Dániel PGP key ID = 0x83B63A8F Key fingerprint = DBEC C66B A47A DFA2 792D 650C C69B BE4C 83B6 3A8F

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