- dovecot - dovecot.org

[Dovecot] New Mailbox Format Plugin Help
by Sacha Bernstein 08 Dec '07

08 Dec '07

I would like to develop a new mailbox format for a very specialized application. Can anyone point me in the appropriate direction to get started writing a plugin? More detail for anyone interested: I need to store mail in a format that's quickly accessible and modifiable to an external process. This is for a very low-volume mail system (averaging less than 50 messages stored at any one time) that needs very good indexing. I need to create new mailboxes on the fly and perform fast searches across all the mailboxes. I intend to store all the messages in an SQL database. Any help getting started interfacing with dovecot (other than reading through _all_ the source code) would be greatly appreciated. Thanks, Sacha

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[Dovecot] Questions about deliver log files
by frank.kintrup＠fkware.de 08 Dec '07

08 Dec '07

Hi, I upgraded from Courier to dovecot, and now I try to rebuild some of the features I used to have. One was a monthly per user log of maildrop's work. I used this code in maildroprc: DATE=`date +%m` logfile "$MAILDIR/maildrop-$DATE.log" This created a monthly log in the each user's Maildir. I find it easier to have a log per user than having to filter the log entries from a large log file for all users. I tried to recreate it with deliver by using the variables %h and %d/%n, but they are not interpreted when the log file is accessed ("Can't open log file /var/vmail/%d/%n/deliver.log: No such file or directory"). And there seems to be no way to include a date in the file name (but maybe I could use logrotate for that). Another problem: Currently deliver only logs the message id. A user would never ask for this (especially if he asks where certain mails were stored/discarded), he would ask for the sender's name/email or subject. Is the contents of the log file configurable? Frank

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[Dovecot] Stale NFS file handle and duplicated messages
by Adrian Barker 08 Dec '07

08 Dec '07

We recently moved all our users from the Washington IMAP server to Dovecot. There has been a substantial improvement in performance, but some users are reporting duplicate messages, and we see 'Stale NFS file handle' errors in the syslog. Does anyone know what would cause this ? The errors relate to the index file, eg. Nov 29 00:49:47 imap-e.ucl.ac.uk dovecot: [ID 107833 mail.error] IMAP(ccaazzz): close() failed with index file /home/ccaazzz/imap-mail/.imap/mbox/dovecot.index: Stale NFS file handle Our IMAP servers (5 of them) are a mixture of Sparc Solaris 8 and Solaris 10 machines, using NFS to a central mailspool running on AIX. We are using a mixture of Dovecot 1.0.3 and 1.0.5. dovecot -n gives: # 1.0.3: /usr/local/etc/dovecot.conf base_dir: /var/run/dovecot/ listen: *:143 ssl_listen: *:993 ssl_ca_file: /usr/local/ssl/certs/sureserveredu.pem ssl_cert_file: /usr/local/ssl/certs/imap-server_ucl_ac_uk.crt ssl_key_file: /usr/local/ssl/certs/imap.key ssl_cipher_list: MEDIUM:!LOW disable_plaintext_auth: no login_dir: /var/run/dovecot//login login_executable: /usr/local/libexec/dovecot/imap-login login_user: pp login_process_per_connection: no login_processes_count: 30 max_mail_processes: 1500 first_valid_uid: 200 mail_location: mbox:%h/imap-mail:INBOX=/nfs/rcs/mail-spool/mail/%u mmap_disable: yes mbox_lock_timeout: 55 mbox_dotlock_change_timeout: 50 mail_drop_priv_before_exec: yes mail_executable: /usr/local/sbin/dovecot-login.csh mail_plugins: mbox_snarf mail_plugin_dir: /usr/local/lib/dovecot namespace: type: private separator: / inbox: yes auth default: passdb: driver: pam passdb: driver: passwd userdb: driver: passwd plugin: mbox_snarf: ~/imap-mail/mbox -- Adrian Barker, Internet Technology Section Information Systems University College London, Gower Street, London WC1E 6BT External phone: +44 20 7679 5140, Fax (+44) 20 7388 5406 Internal phone: x 25140 Email: A.Barker(a)ucl.ac.uk

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[Dovecot] Sponsorship of Dovecot
by Ed W 08 Dec '07

08 Dec '07

Timo Sirainen wrote: > v1.1.0 is finally getting closer, so it's time to start planning what > happens after it. Below is a list of some of the larger features I'm > planning on implementing. I'm not yet sure in which order, so I think > it's time to ask again what features companies would be willing to pay > for? > OK, I would like to sponsor Dovecot for three months for $1,000/month I am just a small business and this is basically coming straight out of my own paycheck, but we use the product internally and I like it and would like to see it continue to develop at the rate it has done. Although this is just a small token of my appreciation, I hope that other businesses who are using dovecot will step up and at least match this contribution. It's less than the price of a small Exchange Server setup and has oh so much more potential I have some minimal requests for what I would like to be developed during that period, but largely the pledge is without strings and you can develop as you wish. I will add a note on the Roadmap thread with my thoughts Thanks for writing Dovecot. Please contact me offlist and let me know how you want the sponsorship delivered (Paypal is fine but sometimes expensive for the receiver). I hope others will step up and increase this substantially Regards Ed W http://www.mailasail.com

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Re: [Dovecot] imap crash with fts squat enabled.
by Joe Wong 08 Dec '07

08 Dec '07

Hi Timo, Dovecot was running on FC7 while the file server is running on FC4. - Joe May the force be with you..

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[Dovecot] "pipe" plugin - is anyone interested (or using it)?
by Nicolas Boullis 08 Dec '07

08 Dec '07

Hi, A few months ago, I sent a message to this list asking if people would be interested by a "pipe" plugin (see http://dovecot.org/pipermail/dovecot/2007-May/023005.html ). I received a few answers of people who told they were intersted. A few months later, I sent a new message announcing the availability of my work (see http://dovecot.org/pipermail/dovecot/2007-August/024805.html ). Since then, I have received no feedback... So, is anyone using this plugin? Is anyone using it? Timo, on my first message, you seemed to be interested to merge such a feature (see http://dovecot.org/pipermail/dovecot/2007-May/023055.html ). Are you still interested? All comments are welcome. I think the feature (or a more generic one) would be a worthy addition for dovecot, be it for ham/spam learning, to implement an "outbox" or anything else I can't think about. All comments about my work are welcome. (Please note that I have not (yet) tried to port it to dovecot 1.1...) Cheers, Nicolas Boullis Ecole Centrale Paris

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[Dovecot] Corrupted Transaction Log File: v1.0.7
by Daniel Watts 07 Dec '07

07 Dec '07

Following errors have happened quite a bit: Dec 7 14:19:26 locallog@tg3/tg3 dovecot: IMAP(peter.day(a)mydomain.com): Transaction log file /home/virtual/mydomain.com/home/peter.day/Maildir/.Trash/dovecot.index.log: marked corrupted Dec 7 14:19:26 locallog@tg3/tg3 dovecot: IMAP(peter.day(a)mydomain.com): Transaction log file /home/virtual/mydomain.com/home/peter.day/Maildir/.Trash/dovecot.index.log.2: marked corrupted Dec 7 14:19:26 locallog@tg3/tg3 dovecot: IMAP(peter.day(a)mydomain.com): Corrupted transaction log file /home/virtual/mydomain.com/home/peter.day/Maildir/.Trash/dovecot.index.log: Append with UID 50, but next_uid = 15870 Causing Peter Day not to be able to delete emails. Seems mostly to happen in the Trash I think. Shouldn't Dovecot be able to recover from this? And then have some rule that if it cannot recover, delete the index file and rebuild? When I manually remove the file it works fine. Thanks, Daniel

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[Dovecot] open files
by Steve Heaven 07 Dec '07

07 Dec '07

This morning dovecot stopped allowing pop3 logins. In the logs I found the messages below Is there a config value for the max open files ? Dec 7 10:00:22 frigga dovecot: execv(/usr/local/libexec/dovecot/pop3) failed: Too many open files Dec 7 10:01:14 frigga dovecot: pipe() failed: Too many open files Dec 7 10:03:40 frigga dovecot: pipe() failed: Too many open files Dec 7 10:03:40 frigga dovecot: pipe() failed: Too many open files Dec 7 10:03:40 frigga dovecot: pipe() failed: Too many open files Dec 7 10:03:40 frigga dovecot: pipe() failed: Too many open files Dec 7 10:03:43 frigga dovecot: pipe() failed: Too many open files Dec 7 10:03:45 frigga dovecot: pipe() failed: Too many open files Dec 7 10:04:39 frigga dovecot: pipe() failed: Too many open files Dec 7 10:04:41 frigga dovecot: pipe() failed: Too many open files Dec 7 10:04:50 frigga dovecot: pipe() failed: Too many open files Dec 7 10:05:00 frigga dovecot: pipe() failed: Too many open files Dec 7 10:05:02 frigga dovecot: pipe() failed: Too many open files Dec 7 10:06:05 frigga dovecot: pipe() failed: Too many open files Dec 7 10:06:05 frigga dovecot: pipe() failed: Too many open files Dec 7 10:06:05 frigga dovecot: pipe() failed: Too many open files Dec 7 10:06:06 frigga dovecot: pipe() failed: Too many open files Dec 7 10:07:48 frigga dovecot: pipe() failed: Too many open files Dec 7 10:08:05 frigga dovecot: pipe() failed: Too many open files

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[Dovecot] imap crash with fts squat enabled.
by Joe Wong 07 Dec '07

07 Dec '07

Hi Timo, Here is the backtrace for your reference. I have already applied dovecot-97702c9c4111 changes to my 1.1 beta10 code base. I am running dovecot on FC7, gcc 4.1.2, mailbox is on NFS. Whenever I did UID SEARCH body "xxxx" imap crashes. Program terminated with signal 6, Aborted. #0 0x00110402 in __kernel_vsyscall () (gdb) bt full #0 0x00110402 in __kernel_vsyscall () No symbol table info available. #1 0x00790fa0 in raise () from /lib/libc.so.6 No symbol table info available. #2 0x007928b1 in abort () from /lib/libc.so.6 No symbol table info available. #3 0x080ca029 in i_internal_fatal_handler (type=LOG_TYPE_PANIC, status=0, fmt=0x80ebb5c "Leaked a t_pop() call in timeout handler %p", args=0xbf8538b4 "\005\b\226\225~") at failures.c:424 backtrace = 0xa0e1168 "imap [0x80ca020] -> imap [0x80c9f2c] -> imap(io_loop_handle_timeouts+0x1b7) [0x80d0bc7] -> imap(io_loop_handler_run+0x69) [0x80d1309] -> imap(io_loop_run+0x28) [0x80d09f8] -> imap(main+0x4ac) [0x8066c"... #4 0x080c9f2c in i_panic (format=0x80ebb5c "Leaked a t_pop() call in timeout handler %p") at failures.c:197 args = 0xbf8538b4 "\005\b\226\225~" #5 0x080d0bc7 in io_loop_handle_timeouts (ioloop=0xa0e99b0, update_run_now=true) at ioloop.c:268 diff = <value optimized out> called_timeouts = (struct timeout *) 0x0 tv = {tv_sec = 8579595, tv_usec = 323093} t_id = 2 #6 0x080d1309 in io_loop_handler_run (ioloop=0xa0e99b0) at ioloop-poll.c:159 ctx = (struct ioloop_handler_context *) 0xa0e99f0 pollfd = <value optimized out> tv = {tv_sec = 0, tv_usec = 0} io = <value optimized out> t_id = <value optimized out> msecs = <value optimized out> ret = 0 call = <value optimized out> #7 0x080d09f8 in io_loop_run (ioloop=0xa0e99b0) at ioloop.c:305 No locals. #8 0x08066c2c in main (argc=Cannot access memory at address 0x5dd2 ) at main.c:293 -- And dovecot.conf: # 1.1.beta10: /usr/local/etc/dovecot.conf log_path: /var/log/dovecot-1.1.log info_log_path: /var/log/dovecot-1.1.log protocols: imap ssl_disable: yes login_dir: /usr/local/var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login login_user: nobody verbose_proctitle: yes mail_location: maildir:~/Maildir mail_debug: yes mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes mail_drop_priv_before_exec: yes mail_plugins: fts fts_squat mail_log_max_lines_per_sec: 100 auth default: user: mdrop username_chars: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@: username_translation: @: verbose: yes debug: yes debug_passwords: yes passdb: driver: sql args: /usr/local/etc/dovecot-sql.conf userdb: driver: sql args: /usr/local/etc/dovecot-sql.conf plugin: fts: squat

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[Dovecot] Mails "get lost" - RHEL 5.1 - dovecot-1.0-1.2.rc15.el5
by Götz Reinicke 07 Dec '07

07 Dec '07

Hi, we do have a Voiceboxserver which forward recorded avi messages to the mailserver account of users. I'v tested it for my account 10 minutes ago and everything works. Some users don't get the messages shown up in there mailclient while the logs show a delivery of that mail. May be some mail caches are messed up? We use Thunderbird 2 and the users concerned use imap. Where may I look or what may I check? Thanks for your help! Regards Götz -- Götz Reinicke IT Koordinator Tel. +49 7141 969 420 Fax +49 7141 969 55 420 E-Mail goetz.reinicke(a)filmakademie.de Filmakademie Baden-Württemberg GmbH Mathildenstr. 20 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzender des Aufsichtsrats: Dr. Christoph Palmer, MdL, Minister a.D. Geschäftsführer: Prof. Thomas Schadt

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