March 2009 - dovecot - dovecot.org

[Dovecot] under load
by Mohsen Pahlevanzadeh 03 Mar '09

03 Mar '09

Dear all, If you have a IMAP or pop3 server under load with vpopmail, can you mail me dovecot.conf ? Yours, Mohsen

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[Dovecot] dovecot imap and thunderbird tags
by Lorenzo Bettini 02 Mar '09

02 Mar '09

We've been using an imap(s) dovecot server for a while on an ubuntu 8.04.2 and we noted that tags set by thunderbird ("important", "to do", etc.) are almost always lost, i.e., when connecting to the same imap account from another machine, the tags are not there anymore... this always happens for the Inbox, and seldomly for other imap folders... anyone else experiencing this? Note that the same problem does not arise with other imap server accounts... thanks in advance Lorenzo -- Lorenzo Bettini, PhD in Computer Science, DI, Univ. Torino ICQ# lbetto, 16080134 (GNU/Linux User # 158233) HOME: http://www.lorenzobettini.it MUSIC: http://www.purplesucker.com http://www.myspace.com/supertrouperabba BLOGS: http://tronprog.blogspot.com http://longlivemusic.blogspot.com http://www.gnu.org/software/src-highlite http://www.gnu.org/software/gengetopt http://www.gnu.org/software/gengen http://doublecpp.sourceforge.net

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[Dovecot] an intresting problem
by Mohsen Pahlevanzadeh 02 Mar '09

02 Mar '09

Dear all, I have compiled dovecot.When i use dovecot --build-options , i receive following messages: ------------------------------------------------ debian:/home/mohsen# dovecot --build-options Build options: ioloop=epoll notify=inotify ipv6 openssl Mail storages: maildir mbox dbox cydir raw SQL drivers: Passdb: checkpassword vpopmail Userdb: prefetch static vpopmail ------------------------------------------------------- Also i have vpopmail & installed it to /home/vpopmail I added joojoo domain. & postmaster@joojoo user. When i use mysql vpopmail,and use select pw_domain,pw_name,pw_clear_password from vpopmail; Then i see following message: +------------+------------+-----------------+ | pw_domain | pw_name | pw_clear_passwd | +------------+------------+-----------------+ | joojoo | postmaster | 123456 | | final.com | postmaster | 123456 | | janjan.com | postmaster | 123456 | | final.com | mohsen | 123456 | | final.com | kamal | 123456 | +------------+------------+-----------------+ When i use `telnet 0 110` i see following message plus my command: debian:/home/mohsen# telnet 0 110 Trying 0.0.0.0... Connected to 0. Escape character is '^]'. +OK Dovecot ready. user postmaster@joojoo +OK pass 123456 -ERR Authentication failed. ^] telnet> quit Connection closed. ///////////////////////// Then i see my log file & saw following messages: ////////////////////////////////////////////////// dovecot: Mar 02 20:10:23 Info: auth(default): new auth connection: pid=2657 dovecot: Mar 02 20:10:39 Info: auth(default): client in: AUTH 1 PLAIN service=pop3 secured lip=127.0.0.1 rip=127.0.0.1 lport=110 rport=38239 resp=AHBvc3RtYXN0ZXJAam9vam9vADEyMzQ1Ng== dovecot: Mar 02 20:10:39 Info: auth(default): checkpassword(postmaster(a)joojoo,127.0.0.1): execute: /home/vpopmail/bin/vchkpw /usr/local/libexec/dovecot/checkpassword-reply dovecot: Mar 02 20:10:39 Info: auth(default): checkpassword(postmaster(a)joojoo,127.0.0.1): Received no input dovecot: Mar 02 20:10:39 Info: auth(default): checkpassword(postmaster(a)joojoo,127.0.0.1): exit_status=3 dovecot: Mar 02 20:10:39 Info: auth(default): checkpassword(postmaster(a)joojoo,127.0.0.1): Login failed (status=3) dovecot: Mar 02 20:10:39 Info: auth(default): vpopmail(postmaster(a)joojoo,127.0.0.1): lookup user=postmaster domain=joojoo dovecot: Mar 02 20:10:39 Info: auth(default): vpopmail(postmaster(a)joojoo,127.0.0.1): unknown user dovecot: Mar 02 20:10:41 Info: auth(default): client out: FAIL 1 user=postmaster@joojoo dovecot: Mar 02 20:10:53 Info: pop3-login: Disconnected (auth failed, 1 attempts): user=<postmaster@joojoo>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, secured ////////////////////////////////////////////////// I use dovecot -n & saw following messages: debian:/home/mohsen# dovecot -n # 1.1.11: /usr/local/etc/dovecot.conf # OS: Linux 2.6.26-1-486 i686 Debian 5.0 log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot.info protocols: pop3 ssl_disable: yes disable_plaintext_auth: no login_dir: /usr/local/var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/pop3-login first_valid_uid: 89 last_valid_uid: 89 mail_uid: 89 mail_gid: 89 mail_location: maildir:~/Maildir maildir_copy_preserve_filename: yes mail_executable: /usr/local/libexec/dovecot/pop3 mail_plugin_dir: /usr/local/lib/dovecot/pop3 auth default: user: vpopmail verbose: yes debug: yes debug_passwords: yes passdb: driver: checkpassword args: /home/vpopmail/bin/vchkpw passdb: driver: vpopmail args: cache_key=%u%s * userdb: driver: vpopmail debian:/home/mohsen# ------------------------------------- Please guide me.......

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[Dovecot] Maildir format use question
by Rick Romero 02 Mar '09

02 Mar '09

Hey all, I've got a couple servers using Maildir format. As I understand it from a simple perspective, 'new' contains newly delivered messages, and 'cur' contains messages that have been 'handled'. I like to keep things simple for users, so rather than have 'Spam', 'Junk' 'ToLearn' and other possibly confusing folders, what I thought I would do is scan their .Spam/cur folder for mail that was older than an hour (based on file atime(?) stamp) and feed that through SpamAssassin. The idea being that anything in 'cur' would: 1. have been moved there by the user. 2. be recently read, and I think if it were innocent, would be handled within an hour 3. Not contain newly delivered, unread mail. This is actually what I see when I view my Spam folder through Evolution. If I use a PHP webclient - either Horde or Roundcube (I've captured the debugs if you'd like them), then a simple view of the Spam folder causes the files to be moved from new/ to cur/. They are updated with the :2, - but since nothing was actually done, no flags are added. So I'm left with a quandry. I guess the simple question is, Should mail in cur, EVER not have a flag? I suppose if it were marked as UNSEEN after being SEEN, that's possible. So I just answered myself there :) Is it possible to have Dovecot NOT move a file from new/ to cur/ until a flag has been assigned to the mail? Just from a, possible, performance standpoint - it seems when accessing an INBOX from a PHP webmail system with MANY new mails, there is an unnecessary(?) mass move of these files to another folder. Thoughts? Rick

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Re: [Dovecot] One Dovecot serving 2 domains - possible?
by k bah 02 Mar '09

02 Mar '09

> ----- Original Message ----- > From: "Timo Sirainen" <tss(a)iki.fi> > To: "k bah" <kbah(a)linuxmail.org> > Cc: dovecot(a)dovecot.org > Subject: Re: [Dovecot] One Dovecot serving 2 domains - possible? > Date: Fri, 27 Feb 2009 11:58:09 -0500 > > > On Feb 27, 2009, at 8:21 AM, k bah wrote: > > >> The above assert isn't from v1.1.11 and I had added some extra checks > >> there since 1.1.7. Do you have the exact assert message from v1.1.11? > > > > root@server:~/dovecot-1.1.11/src/lib# grep -n assert istream-tee.c > > 38: i_assert(tstream->istream.skip + old_used <= size); > > 85: i_assert(tee->input->v_offset <= tee- >max_read_offset); > > 119: i_assert(last_high_offset <= input->v_offset + size); > > 142: i_assert(stream->buffer == data); > > 144: i_assert(ret > 0); > > root@server:~/dovecot-1.1.11/src/lib# > > Oh. Looks like I changed the code after v1.1.11 :) > > http://hg.dovecot.org/dovecot-1.1/rev/e1cac844aa1e > > Does that fix help with your crashes? Since it's a production server and I just started working for these people, I'll try to reproduce the previous error without affecting the users e-mail (since their server is now running 1.0.15). As soon as I do that I'm going to give you a feedback for sure, if the problem persists or not. The user who reported to me the error may not have the messages that were triggering the errors, so I can't guarantee that I'll be able to reproduce the error again. Thanks for the quick response! > > > server dovecot: child 553 (auth-worker) killed with signal 11 > > This is also interesting. A crashing imap process should have no > effect on auth-worker. Can you get a gdb backtrace from that? Ok, the same as above. thanks again! > = -- Powered by Outblaze

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[Dovecot] Forwarding with Dovecot
by Sawtooth500 02 Mar '09

02 Mar '09

I'm using Dovecot with Postfix as my MTA I need to set up forwarding with Dovecot. I create a .forward file in my user's home directory, and in the .forward file I put destination_email_address email(a)example.com. Well, it got delivered to the forwarded email just fine. But the sender also got an undeliverable email from the dovecot mailbox and a copy was not saved in the dovecot mailbox. I need emails forwarded, and a copy saved in the dovecot mailbox. Thanks in advance for the help! -- View this message in context: http://www.nabble.com/Forwarding-with-Dovecot-tp22244316p22244316.html Sent from the Dovecot mailing list archive at Nabble.com.

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[Dovecot] Remote storage
by Daniel L. Miller 01 Mar '09

01 Mar '09

What options are available for remote storage, i.e. storage devices directly mounted on the machine running Dovecot? I've seen discussions of NFS usage - but my experiences with NFS in times past have been poor. CIFS has worked well for me for non-mail use - would this be suitable? Or is there another method I've not considered? -- Daniel

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