- dovecot - dovecot.org

[Dovecot] repeat downloads of message headers in 1.0rc19
by Brian G. Peterson 29 Jan '07

29 Jan '07

I upgraded one server to 1.0rc19 (from rc15) over the weekend, and have since received several reports of dovecot erroneously retrieving older messages as new mail. I've seen this myself intermittently on KMail, and users have reported it on Thunderbird, Squirrelmail, and Outlook. I see some things in the archives that suggest that this was a problem in older 1.0 release candidates, but hadn't experienced the problem myself until just now. Has anyone else seen this problem? Regards, - Brian

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Re: [Dovecot] PLONK THE TROLL... WAS: Re: Best small server config
by Jakob Curdes 29 Jan '07

29 Jan '07

Stewart Dean schrieb: > I just occurred to me that Dovecot has arrived! It is only when a > product is stable, has a substantial leadership, followship, community > and reputation, that the remoras and lampreys of the computer world > come to attach themselves for a ride...as expressed in their outraged > demands for free, immediate and substantial assistance... > It's been said that "imitation is the sincerest form of > flattery"....perhaps there's a Dean's Law, something along the lines of: > "Newbie leeching is the surest sign of an open-source application's > acceptance" > > Congratulations, Timo and the core team. You are accepted as a > success. Go buy yourselves a magnum of champagne with your own money > and celebrate! I copy the congratualations although if the conclusion holds, dovecot has arrived *some* time ago ... we had some odd questions on this list a good while ago. JC ps. I don't see a list copy of this msg so I forwarded him one for the congratulations...

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[Dovecot] Best small server config
by - 29 Jan '07

29 Jan '07

Hi, Busy with dovecot on a linux server with not very much RAM in it (512 MB max total). On this server dovecot will only handle about 12 users, with never more than 3 IMAP webmail users at a time, and a maximum of 2 POP3 users at a time using it. I'm going all secure later on, but first I would like your opinion on what configuration best to use with, say, max 5 users busy at one time, and have it use as little RAM and CPU as possible. (Same machine is also running httpd, squirrelmail, php5, postfix, clamd, clamsmtpd, sshd.) Here's my /etc/dovecot.conf now: # protocols = imap pop3 imap_listen = * pop3_listen = my.servers.ip.address (hidden for this list) ssl_cert_file = /etc/ssl/certs/imapd.pem ssl_key_file = /etc/ssl/private/imapd.pem ssl_parameters_file = /var/run/dovecot/ssl-parameters.dat ssl_parameters_regenerate = 320 login_dir = /var/run/dovecot-login login = imap login = pop3 default_mail_env = maildir:/home/%u/Maildir mailbox_idle_check_interval = 40 mail_full_filesystem_access = yes login_user = dovecot login_process_size = 64 login_process_per_connection = no login_processes_count = 4 login_max_processes_count = 4 login_max_logging_users = 5 max_mail_processes = 140 imap_process_size = 192 pop3_process_size = 64 first_valid_uid = 500 last_valid_uid = 520 mail_cache_fields = MessagePart mbox_locks = fcntl mbox_read_dotlock = no mbox_lock_timeout = 380 auth = default auth_mechanisms = plain auth_userdb = passwd auth_passdb = pam auth_process_size = 64 auth_user = root # Any insight or advice welcomed! Ben de G.

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[Dovecot] Need help with config
by Vikram Goyal 29 Jan '07

29 Jan '07

Hello, I have a dir ~/Maildir where all my mails get distributed to their respective folders through procmail filters. The heirarchy is as follows: ~/Maildir/ /inbox --> maildir /trash --> maildir /newsletter --> mbox lists/ --> normal dir /dovecot --> dovecot list maildir /some other list maildirs I need help in writing namespace in config. Can anyone help. Thanks! -- vikram...

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[Dovecot] Benchmarking
by Timo Sirainen 29 Jan '07

29 Jan '07

I wasted too much time today doing this, but they do show a few interesting things: 1) mmap_disable=yes is faster than mmap_disable=no. I didn't expect this. I'm not yet sure why this is, but possibly because then it updates the mail index by reading the changes from dovecot.index.log, instead of reopening and re-mmaping dovecot.index. At least that's the biggest difference between them. 2) Dovecot is faster than Cyrus, at least in test. I didn't really expect this either, because with maildir Dovecot has to do extra rename() calls for all flag changes. I'm guessing it's expunges that are slowing Cyrus down the most (that causes it to rewrite its cache file). 3) fsync_disable=yes + mmap_disable=yes almost doubles the performance with 1 client, and over quadruples the performance with 10 clients. Why fsync_disable=yes + mmap_disable=no doesn't give that big of a performance difference? I've no idea. This is anyway such a large performance increment that I'll probably go and backport this setting to v1.0 too :) 4) Dovecot's mbox code kicks maildir's ass. 5) dbox is surprisingly slow. I'll have to find out why. I don't think it should be that slow. 6) Courier.. Well, it probably doesn't come as a shock that Dovecot is almost twice as fast. Note that Courier doesn't call fsync(), so it can't be compared to Dovecot's fsync_disable=no numbers or to Cyrus. Oh, one other difference between Courier and others was that it didn't support LITERAL+ extension, so it maybe could have done a bit less appends than others. 7) CVS HEAD and branch_1_0 don't seem to have that big of a performance difference. All the tests were done using my IMAP tester: http://dovecot.org/tools/imaptest.c The mailbox data that was being appended was Dovecot's mailing list: http://dovecot.org/archives/dovecot.mbox The linefeeds were converted to CR+LF. However, for the Dovecot CVS HEAD runs the mails contained also those extra X-UID, Status, etc. headers which I had to remove before Cyrus would accept them (the lines didn't contain CRs). So CVS HEAD was actually doing a bit more work than the others. System: Intel Core 2 Duo E6600, 2GB memory, 300GB Seagate ATA disk with XFS Linux 2.6.19.2, x86-64 SMP, Debian unstable Dovecot: CVS HEAD unless specified otherwise Cyrus: v2.2.13-10 (Debian) - NOTE: comparable to fsync_disable:no Courier: v4.1.1.20060828-2 (Debian) - NOTE: comparable to fsync_disable:yes! Settings: Dovecot: login_process_per_connection=no, login_processes_count=10, mail_drop_priv_before_exec=yes, passdb+userdb = passwd-file Cyrus: Default Debian settings, except sasl_pwcheck_method: alwaystrue Courier: Default Debian settings, using PAM + passwd Results: imaptest parameters: clients=1 msgs=30 secs=120 seed=1 mmap_disable:no fsync_disable:no Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 1135 1135 1134 1134 577 298 298 378 1134 1125 1125 1124 1124 573 295 295 373 1124 1123 1123 1122 1122 572 294 294 371 1122 mmap_disable:yes fsync_disable:no Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 1401 1401 1400 1400 710 388 388 480 1400 1398 1398 1397 1397 710 386 385 478 1397 1395 1395 1394 1394 709 384 384 476 1394 mmap_disable:no fsync_disable:yes Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 1356 1356 1355 1355 687 369 369 460 1355 1360 1360 1359 1359 690 371 370 462 1359 1363 1363 1362 1362 693 372 372 463 1362 mmap_disable:yes fsync_disable:yes Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 2486 2486 2485 2485 1221 669 669 811 2485 2475 2475 2474 2474 1216 667 667 807 2474 2497 2497 2496 2496 1226 673 673 815 2496 mmap_disable:yes fsync_disable:no - VERSION: CVS branch_1_0 Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 1359 1359 1358 1358 690 370 370 461 1358 mmap_disable:yes fsync_disable:no format:mbox Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 2101 2101 2100 2100 1046 568 568 684 2100 2064 2064 2063 2063 1031 553 552 669 2063 mmap_disable:yes fsync_disable:yes format:mbox Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 3362 3362 3361 3361 1653 912 911 1095 3361 mmap_disable:yes fsync_disable:yes format:dbox Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 820 820 819 819 406 209 209 267 819 Cyrus: Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 535 535 533 533 261 148 148 195 534 520 520 519 519 254 142 142 189 520 Courier: Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 833 833 832 831 407 250 250 350 832 822 822 821 820 404 245 245 344 821 --- imaptest parameters: clients=1 msgs=1000 secs=120 seed=1 mmap_disable:no fsync_disable:no Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 365 365 364 364 181 226 226 487 364 376 376 375 375 186 236 236 503 375 369 369 368 368 183 230 230 493 368 mmap_disable:yes fsync_disable:no Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 426 426 425 425 212 269 269 564 425 428 428 427 427 213 271 271 567 427 424 424 423 423 211 267 266 562 423 mmap_disable:no fsync_disable:yes Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 497 497 496 496 240 320 320 664 496 501 501 500 500 243 322 322 671 500 495 495 494 494 240 318 317 662 494 mmap_disable:yes fsync_disable:yes Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 742 742 741 741 378 500 500 991 741 747 747 746 746 379 504 504 996 746 743 743 742 742 378 501 501 992 742 mmap_disable:yes fsync_disable:no format:mbox Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 485 485 484 484 235 311 311 649 484 Cyrus: Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 290 290 289 289 144 173 173 394 289 286 286 285 285 141 172 172 387 285 Courier: Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 461 461 460 459 223 295 295 615 460 458 458 457 457 222 293 293 611 457 --- imaptest parameters: clients=10 msgs=30 secs=120 seed=1 mmap_disable:no fsync_disable:no Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 444 442 432 430 210 214 213 490 434 479 479 470 468 213 216 214 508 469 476 472 464 463 211 206 203 485 460 mmap_disable:yes fsync_disable:no Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 440 440 433 431 195 184 183 460 430 436 436 430 430 199 177 176 455 426 435 432 425 425 208 165 165 455 425 mmap_disable:no fsync_disable:yes Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 680 679 674 670 325 299 298 721 670 676 675 669 669 307 297 297 693 666 688 687 677 677 311 305 303 731 678 mmap_disable:yes fsync_disable:yes Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 1804 1803 1793 1790 904 765 764 1901 1792 1804 1804 1801 1800 888 789 787 1949 1793 1800 1800 1789 1786 875 799 797 1964 1782 mmap_disable:yes fsync_disable:no format:mbox Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 644 644 633 633 305 224 221 526 634 Cyrus: Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 444 441 429 421 209 186 184 381 436 424 422 420 412 193 186 185 395 415 443 442 431 419 227 180 180 373 433 Courier: Logi Sele Fetc Fet2 Stor Dele Expu Appe Disc 981 976 974 973 463 406 405 667 971 971 966 965 965 451 384 383 655 961

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[Dovecot] dovecot patch for filesystem quota
by Geert Hendrickx 29 Jan '07

29 Jan '07

from a fellow pkgsrc-developer (who is not subscribed to this list) Geert ----- Forwarded message from Manuel Bouyer <Manuel.Bouyer(a)lip6.fr> ----- From: Manuel Bouyer <Manuel.Bouyer(a)lip6.fr> Message-ID: <20070129115851.GA12360(a)asim.lip6.fr> Date: Mon, 29 Jan 2007 12:58:51 +0100 To: ghen(a)NetBSD.org Subject: dovecot patch for filesystem quota User-Agent: Mutt/1.5.13 (2006-08-11) Hi, I've installed dovecot on a mail server with filesystem quota, and I noticed that dovect reports wrong informations for quotas to the client (the ratio is correct though, so it will properly detect when quota is nearly full anyway). The attached patch fixes it for me, and I suspect is also correct for others BSDs. I don't know for AIX. --- src/plugins/quota/quota-fs.c.orig 2007-01-28 22:35:32.000000000 +0100 +++ src/plugins/quota/quota-fs.c 2007-01-28 22:36:12.000000000 +0100 @@ -250,8 +250,8 @@ quota_set_error(_root->setup->quota, "Internal quota error"); return -1; } - *value_r = (uint64_t)dqblk.dqb_curblocks * 1024 / DEV_BSIZE; - *limit_r = (uint64_t)dqblk.dqb_bsoftlimit * 1024 / DEV_BSIZE; + *value_r = (uint64_t)dqblk.dqb_curblocks * DEV_BSIZE / 1024; + *limit_r = (uint64_t)dqblk.dqb_bsoftlimit * DEV_BSIZE / 1024; #else /* Solaris */ if (root->mount->fd == -1) ----- End forwarded message -----

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[Dovecot] POP3 logging in wrong timezone
by - 27 Jan '07

27 Jan '07

I have dovecot running on a CentOS 4.4 server, and it is logging IMAP entries just fine, in the right timezone (GMT+1), which the server itself is running on (CET), but pop3 is being logged in GMT 0, so 1 hour too early. pop3 log-entries are at the right position in the maillog, but with the wrong time next to it. Now I've read some messages in this list about this bug (or feature), but have no clue as to how to solve it. Anyone? Thanks in advance, Ben

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[Dovecot] per-network auth mechanisms
by George Moury 27 Jan '07

27 Jan '07

Hi All, I need use different auth mechanisms for different IP-address of IMAP/SMTP SASL clients (allow plain authorisation only for my own network), but there is no examples at wiki.dovecot.org for this feature. Is this feature available at rc19 version? Thank you in advance. Best regards, George

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Re: [Dovecot] unknown namespace with Mac OS client
by Kenny Dail 26 Jan '07

26 Jan '07

> > I just tried it now, I can get invalid namespace on your setup. Let me > > know if you need me to hit it more > > Looks like Mail.app is just being broken and changes '.' characters to > '/' internally.. > How hard would it be to put in a workaround for Mail.app, to ignore the namespace being supplied by the client and to use the namespace defined by the server? -- Kenny Dail <kend(a)amigo.net>

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[Dovecot] Advice, Converting a Live/Production server.
by Michael Dilworth 26 Jan '07

26 Jan '07

I want to mess with a live server. (a Bad thing). I have googled until my eyes boogled, wiki'ed until my fingers are wonked, have read as much as I can read, however I'm left with a few questions/worries. Issue: I am currently running Dovecot as a pop3 server with standard /var/mail mbox's I would like to run a mixed Imap/Pop3 server with ~/maildir inbox's The thread http://www.dovecot.org/list/dovecot/2006-February/011304.html is fairly close to what I want to do, but I would like to go ahead and convert to maildir. (Mixed pop3/imap access for each user) I don't have a system to test, "I used have one but it's now the production server... PW/Disk failed, thank G-D(s) for rsync/backups". Setup: procmail, dovecot 1.0 beta 8.2 (fc5), squirrelmail. all users use outlook (2000,2003) or outlook express (random versions) (^^^^ not my choice, I just have to deal with it {and use it} ^^^^^) the majority of users will continue to use pop3, however some would like to convert to imap and have all mail stored on the server. Questions: /etc/procmailrc? just set default to ~/maildir? do I need to define "INBOX"? aka $MAILDIR=~/maildir/, $ORGMAIL=~/maildir/, $DEFAULT=~/maildir/ Same as above, what about new/cur should I set up a /etc/skel? close to above, if I create rules, for spam, etc. do I need to worry about cur/new. close to above, what about Sent Items, Drafts etc... for imap users, I do understand that client rules would likely be needed to store sent items. conversion, anything to look for? mb2md seems to work, but some users have "don't delete from server set", will they get dups? (I can live with this) archiving, can I (or a script) mess with the files in the maildir? aka keep the number of files/messages less than 16k for the outlook users. Bugs, should I cool my heals, and wait for rc16 or 1.0 final? I am currently running problem free, and I do hate to mess with something which is not busted. TIA Michael.

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[Dovecot] Dovecot POP3 fails to chdir under FC6
by James A. McDonald 26 Jan '07

26 Jan '07

I started the Dovecot POP3 server under Fedora Core 6 (rpm dovecot-1.0-1.1.rc15.fc6), but some users couldn't connect, with /var/log/maillog show the message Jan 24 13:20:00 mmace dovecot: chdir(/branch/home/mmace) failed with uid 205: Permission denied Jan 24 13:20:00 mmace dovecot: child 18792 (pop3) returned error 89 (I had already edited first_valid_UID in /etc/dovecot.conf to allow UID's >= 200.) However, only users who had their home directory under /branch/home couldn't connect. Users with homedirs under /home connected via POP3 just fine. I found out POP3 connection failures also logged an error to /etc/messages: Jan 24 13:20:00 mmace kernel: audit(1169662800.479:160): avc: denied { search } for pid=18792 comm="dovecot" name="/" dev=sda3 ino=2 scontext=system_u:system_r:dovecot_t:s0 tcontext=system_u:object_r:mnt_t:s0 tclass=dir So, selinux was the culprit. My home directories had the right selinux security context, but the root of the disk holding those home directories (/branch is a separate disk drive) had a security context (system_u:object_r:mnt_t) that Fedora's selinux rules for dovecot did not allow. I changed the context of /branch to system_u:object_r:usr_t, and dovecot POP3 access worked for all users.

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[Dovecot] 1.0.rc19 released
by Timo Sirainen 26 Jan '07

26 Jan '07

http://dovecot.org/releases/dovecot-1.0.rc19.tar.gz http://dovecot.org/releases/dovecot-1.0.rc19.tar.gz.sig Just did a few more fixes to index files. Do they help with anyone's problems? - ACL plugin didn't work unless control dir was separate from maildir - More index file handling fixes

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[Dovecot] FS quota problem on Solaris10
by Kevin Richter 25 Jan '07

25 Jan '07

Hi, it seems, that I have a quota problem: kric0999@servername:~ $ quota -v Disk quotas for kric0999 (uid 1234): Filesystem usage quota limit timeleft files quota limit timeleft /home 1188850 0 1500000 0 0 0 You see: I have a quota: 1,2GB from 1,5GB The sent-mail, trash, drafts mboxes are in /home/kric0999/mail/ Why does Thunderbird say: "There are no storage quotas on this folder" f.ex when looking at the properties of sent-mail The log says: dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): Loading modules from directory: /opt/dovecot-1.0.rc19/lib/dovecot/imap dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): Module loaded: /opt/dovecot-1.0.rc19/lib/dovecot/imap/lib10_quota_plugin.so dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): Module loaded: /opt/dovecot-1.0.rc19/lib/dovecot/imap/lib11_imap_quota_plugin.so dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): mbox: data=/home/kric0999/mail/:INBOX=/var/mail/kric0999 dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): mbox: root=/home/kric0999/mail, index=/home/kric0999/mail, inbox=/var/mail/kric0999 dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): fs quota add storage dir = /home/kric0999/mail dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): fs quota block device = auto_home dovecot: Jan 25 17:29:31 Info: IMAP(kric0999): fs quota mount point = /home Any ideas? Greets, Kevin Richter

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[Dovecot] X-UID gaps cause Dovecot/IMAP to hang
by Benjamin Howell 25 Jan '07

25 Jan '07

Hi, When the Dovecot 1.0.rc19 IMAP server encounters X-UID headers with gaps in them, it hangs indefinitely. I've attached a sample mailbox (in mbox format) which repeatably exhibits this behavior. The mbox contains only three messages with the following X-UIDs in order: 774, 785, 787. If I remove the X-UID headers from each message, Dovecot handles the mailbox without any problems. UW-IMAP is able to handle the sample mbox _with_ X-UID headers. A full backtrace is also included. When Dovecot hangs, it appears to continually lock and unlock the mailbox. I'm using dotlocking so a mailbox.lock file appears and disappears constantly. I have to kill the process to log back in. I'm not familiar enough with Dovecot to offer a patch, but if anybody feels they can fix this or needs more information, please let me know. Regards, Benjamin Howell bhowell(a)iglou.com

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[Dovecot] logging pop3 fetch time
by Zbigniew Szalbot 25 Jan '07

25 Jan '07

Hello, Is it possible with dovcot (rc7) to log how long it takes to complete downloading mail? If so, what do I have to set in the conf file? Thank you! -- Zbigniew Szalbot

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[Dovecot] Dovecot website
by Luigi Rosa 25 Jan '07

25 Jan '07

I think that the Dovecot website is down/unreachable, at lest from a couple of Italian IPs Ciao, luigi -- / +--[Luigi Rosa]-- \ Old programmers never die, they just hit account block limit.

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[Dovecot] rc18->rc19: read/unread/reply flags broken
by Jeff A. Earickson 25 Jan '07

25 Jan '07

Timo, This might be a bit vague, but I have noticed that rc19 seems to have broken the read/unread/reply flags in imap. My officemate has had problems with messages that are read and marked as read then mysteriously get remarked as unread the next time email is checked. I've had problems where I reply to a message and it does not get marked as "answered". We didn't see this with rc18 and earlier. My setup: Solaris 10, sparc, T2000 system. rc19 (now back to rc18), using mbox format. system mailbox is NFS mounted from another Sun Solaris 10 system, homedirs and dovcot cache files are on local zfs filesystems. Jeff Earickson Colby College

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Re: [Dovecot] X-UID: 4085788205 != 2147483647
by Timo Sirainen 25 Jan '07

25 Jan '07

On 24.1.2007, at 2.49, Stephen Gowing wrote: > It *is* possible to force a large X-UID, if the user has an empty > inbox > (tested on rc15). Yes, but only if it's the very first message for the user. Afterwards even if user expunges all the messages, there are two things that prevent this from being possible: index files and the UW-IMAP style "FOLDER INTERNAL DATA" message. You could also prevent this completely by stripping the X-UID header in your SMTP server or LDA. For example Dovecot LDA strips all the Dovecot's internal metadata headers. I guess the UID renumbering could be done some day, but for now I think it's just way too much trouble with not that much benefits.

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[Dovecot] dovecot LDA 'deliver' and aliases
by Michael Pulk 25 Jan '07

25 Jan '07

Dovecot LDA (deliver) aliases question. I have a multiple virtual domain setup using sendmail, username/domain, password, home directory all stored in mysql,Set-UID/GID for dovecot 'deliver' setup as referenced in Dovecot LDA wiki. Delivery, and POP/IMAP work just fine, serving a mail store in /home/vmail/domain/username type of setup. My problem comes from what may be a misunderstanding on my part on how to setup aliases for some virtual users. I have the mailer specification for dovecot defined, and my mailertable and (access) tables setup for each domain, with an entry like this for each domain in mailertable: domain.com dovecot:dovecot and since I also function as SMTP relay for each customer, I also have an entry in in access domain.com RELAY and the tables are made with hash... this all appears to work just fine, except when I want to alias a certian email address. Lets say that I have one email in the domain that needs to be forwarded to another remote account (on another server), I would normally accomplish this with an entry in virtusertable something like this: sales(a)domain.com <mailto:sales@domain.com> user(a)otherdomain.com <mailto:user@otherdomain.com> but when using dovecots' deliver as the LDA specified for domain.com in mailertable, this appears to be ignored, with the email being returned undeliverable (if sales(a)domain.com <mailto:sales@domain.com> doesn't exist), or being delivered to sales(a)domain.com <mailto:sales@domain.com> (if the account exists in the mysql table). I have also tried creating the account, and placing a .forward file in the appropriate /home/vmail/domain/user directory, but this also appears to be ignored. Does anyone have some advice on how to implement such an ability? I am running dovecot-1.0.rc17, sendmail-8.13.1-3.RHEL4.5, mysql-4.1.20-1.RHEL4.1 on Centos 4.4 Sincerely Michael P.

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[Dovecot] NEWBIE: configuring all virtual users...
by AJ Weber 24 Jan '07

24 Jan '07

OK, I'm trying to filter-through all the different WiKi and docs about how to configure all virtual users. Now, there's only going to be a few, and it's a secure env, so I'm going to try and configure a custom passwd file (or whatever trimmed-down version I can do), basically to do usernames, passwords, and MBOX dirs. I'm only planning on serving POP3 mail to my clients. I have a location to create MBOX files -- it will be in a specific directory, with sub-dirs for each user; sort of a /home/VU/%u/mbox . I'm really confused as to what add'l info I need to include like "INDEX" and "INBOX" on the mail_location info. Does anyone have any info and/or examples on how to configure my .conf file and create a minimal passwd file for these virtual users? Thanks in advance, AJ

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[Dovecot] [sfs@tc.umn.edu: Re: dovecot-auth file descriptor usage]
by Steven F Siirila 24 Jan '07

24 Jan '07

I hate to be a pest, but are there any revelations on file descriptor "overusage" by dovecot-auth? ----- Forwarded message from Steven F Siirila <sfs(a)tc.umn.edu> ----- Date: Sat, 20 Jan 2007 12:42:50 -0600 From: Steven F Siirila <sfs(a)tc.umn.edu> To: Dovecot Mailing List <dovecot(a)dovecot.org> User-Agent: Mutt/1.4.2.1i Subject: Re: [Dovecot] dovecot-auth file descriptor usage Okay, here is one which has closed fds 0 and 1, so I presume it is proxying SSL: 11988: imap-login Current rlimit: unlimited file descriptors 2: S_IFIFO mode:0000 dev:295,0 ino:2692866 uid:0 gid:1 size:0 O_RDWR 4: S_IFCHR mode:0644 dev:287,0 ino:99614726 uid:0 gid:3 rdev:190,1 O_RDONLY|O_LARGEFILE FD_CLOEXEC /devices/pseudo/random@0:urandom 5: S_IFIFO mode:0000 dev:295,0 ino:2692868 uid:65 gid:65 size:0 O_RDWR FD_CLOEXEC 6: S_IFIFO mode:0000 dev:295,0 ino:2692868 uid:65 gid:65 size:0 O_RDWR FD_CLOEXEC 7: S_IFSOCK mode:0666 dev:293,0 ino:33376 uid:0 gid:0 size:0 O_RDWR|O_NONBLOCK SOCK_STREAM SO_REUSEADDR,SO_KEEPALIVE,SO_SNDBUF(49152),SO_RCVBUF(49640),IP_NEXTHOP(0.0.193.232) sockname: AF_INET 134.84.119.102 port: 143 peername: AF_INET 160.94.23.17 port: 38847 8: S_IFSOCK mode:0666 dev:293,0 ino:63591 uid:0 gid:0 size:0 O_RDWR|O_NONBLOCK SOCK_STREAM SO_SNDBUF(16384),SO_RCVBUF(5120) sockname: AF_UNIX peername: AF_UNIX default 9: S_IFSOCK mode:0666 dev:293,0 ino:43728 uid:0 gid:0 size:0 O_RDWR|O_NONBLOCK SOCK_STREAM SO_SNDBUF(16384),SO_RCVBUF(5120) sockname: AF_UNIX On Fri, Jan 19, 2007 at 11:34:44PM +0200, Timo Sirainen wrote: > On Wed, 2007-01-17 at 12:57 -0600, Steven F Siirila wrote: > > Doh! Here's another one (took 3 more trials to nab one): > > > > 29058: imap-login > > Current rlimit: unlimited file descriptors > > 0: S_IFSOCK mode:0666 dev:293,0 ino:63436 uid:0 gid:0 size:0 > > O_RDWR|O_NONBLOCK > > SOCK_STREAM > > SO_REUSEADDR,SO_KEEPALIVE,SO_SNDBUF(49152),SO_RCVBUF(49152),IP_NEXTHOP(0.0.192.0) > > sockname: AF_INET 0.0.0.0 port: 143 > > 1: S_IFSOCK mode:0666 dev:293,0 ino:42189 uid:0 gid:0 size:0 > > O_RDWR|O_NONBLOCK > > SOCK_STREAM > > SO_REUSEADDR,SO_KEEPALIVE,SO_SNDBUF(49152),SO_RCVBUF(49152),IP_NEXTHOP(0.0.192.0) > > sockname: AF_INET 0.0.0.0 port: 993 > > Almost, but not quite :) File descriptors 0 and 1 are open only when the > process is listening for new connections (for ports 143 and 993). So > this process wasn't proxying SSL. > > > 2: S_IFIFO mode:0000 dev:295,0 ino:2456463 uid:0 gid:1 size:0 > > O_RDWR > > This is logging pipe. > > > 3: S_IFSOCK mode:0666 dev:293,0 ino:37418 uid:0 gid:0 size:0 > > O_RDWR > > SOCK_STREAM > > SO_SNDBUF(16384),SO_RCVBUF(5120) > > sockname: AF_UNIX > > Connection to master process. > > > 4: S_IFCHR mode:0644 dev:287,0 ino:99614726 uid:0 gid:3 rdev:190,1 > > O_RDONLY|O_LARGEFILE FD_CLOEXEC > > /devices/pseudo/random@0:urandom > > /dev/urandom. > > So it hasn't actually yet even connected to dovecot-auth. -- Steven F. Siirila Office: Lind Hall, Room 130B Internet Services E-mail: sfs(a)umn.edu Office of Information Technology Voice: (612) 626-0244 University of Minnesota Fax: (612) 626-7593 ----- End forwarded message ----- -- Steven F. Siirila Office: Lind Hall, Room 130B Internet Services E-mail: sfs(a)umn.edu Office of Information Technology Voice: (612) 626-0244 University of Minnesota Fax: (612) 626-7593

2 1

[Dovecot] pop/imap login logging only username part of full email address
by Justin McAleer 24 Jan '07

24 Jan '07

I have my login log format set like so: login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c When I log in using a full email address, though, I only get the username part of the address: Jan 24 13:28:29 node7 dovecot: pop3-login: Login: user=<justin>, method=PLAIN, rip=137.118.2.60, lip=137.118.7.247 Jan 24 13:28:30 node7 dovecot: POP3(justin): Disconnected: Logged out top=0/0, retr=0/0, del=0/717, size=15797460 Is that behavior intentional? If so, can it log the full username as given by the client instead? Anyone with multiple domains probably wants to see the domain part. Changing %u to %n yields the same log entry, and %d seems to be empty so nothing gets logged if I try to log that.

2 2

[Dovecot] More AFS maildir debugging
by Aaron Solochek 24 Jan '07

24 Jan '07

There appears to be some sort of a race condition when accessing a maildir directory for the first time with dovecot. I was getting a non-specific error trying to select INBOX, but when I stepped through it with a debugger it worked. Deleting the dovecot files and running the select again it failed. I started playing with it again just now, and when attempting to access Sent, I actually got some errors: a04 select Sent imap(aarons): Error: Corrupted transaction log file /XX/Maildir/.Sent/dovecot.index.log: unexpected end of file while reading header imap(aarons): Error: Corrupted transaction log file /XX/Maildir/.Sent/dovecot.index.log: unexpected end of file while reading header imap(aarons): Error: Corrupted transaction log file /XX/Maildir/.Sent/dovecot.index.log: unexpected end of file while reading header a04 NO Internal error occurred. Refer to server log for more information. [2007-01-13 16:17:51] I then deleted dovecot.index.log and dovecot.index.log.2 (the only two dovecot files that were present) and retried the select: a04 select Sent a04 NO Internal error occurred. Refer to server log for more information. [2007-01-13 16:23:40] Does anyone more familiar with the code than myself have any pointers of where to concentrate my debugging efforts? Thanks. -Aaron

4 13

[Dovecot] dovecot-acl file location in rc18
by Radek Zavicak 24 Jan '07

24 Jan '07

Hi, I'm trying to use ACL with dovecot rc18 but I don't understand where to store per-mailbox dovecot-acl file. In dovecot.conf I have mail_location = maildir:/var/vmail/%u/ and I do not use namespaces. I have some "testuser" maildir with subdir ".test". When I put dovecot-acl file to the .test directory I get this error in my log file: Error: IMAP(testuser): /var/vmail/testuser/.test/dovecot-acl is no longer kept in control directory, move it to the actual maildir (/var/vmail/testuser/.test) Error: child 28143 (imap) returned error 89 This error tells me to move dovecot-acl file from control dir to mail directory but these are the same for me (and I think it's Dovecot default for maildir). Where I should store per-mailbox dovecot-acl file in this case? Regards, Radek Zavicak

3 3

[Dovecot] too many open files error when using quota plugin
by Justin McAleer 24 Jan '07

24 Jan '07

With the quota plugin loaded (even with a quota value of 0), I get errors like the following: open(/var/mailstore/01/1a/301620/Maildir/cur/1169654988.P22440Q0M696852.<hostname stripped>,S=4437552:2,Sbc) failed: Too many open files To do this, I have a folder with about 700 messages and I tell Thunderbird to run junkmail controls on it (fetches all messages). Watching an strace on the imap process I'm connected to, the problem seems to be when the plugin goes to close the maildirsize file, it's not closing the correct file descriptor: open("/var/mailstore/01/1a/301620/Maildir/./maildirsize", O_RDWR|O_APPEND) = 1016 read(1016, "1024S\n395 1\n397 1\n", 5120) = 18 read(1016, "", 5102) = 0 close(4294967295) = -1 EBADF (Bad file descriptor) It closes that same descriptor every time. On a side note, I'm just curious why it needs to read the maildirsize file for a fetch request anyway?

2 2

[Dovecot] building with SSL support in non-std directories
by AJ Weber 24 Jan '07

24 Jan '07

I'm trying to get configure to find the right libs/includes to build with SSL support (openssl), but it just seems to refuse! I tried passing " --with-ssl=openssl --with-ssldir=/usr/local/ssl ", but this didn't seem to help. In /usr/local/ssl is: drwxr-xr-x 2 root root 4096 2006-12-11 13:25 bin drwxr-xr-x 2 root root 4096 2006-12-11 12:15 certs drwxr-xr-x 3 root root 4096 2006-12-11 12:15 include drwxr-xr-x 4 root root 4096 2006-12-11 13:25 lib drwxr-xr-x 6 root root 4096 2006-12-11 12:15 man drwxr-xr-x 2 root root 4096 2006-12-11 13:25 misc -rw-r--r-- 1 root root 9374 2006-12-11 13:25 openssl.cnf drwxr-xr-x 2 root root 4096 2006-12-11 12:15 private Can someone tell me what it's looking for and how to properly tell it to compile in the SSL support??? Thanks, AJ

2 1

[Dovecot] rc18 dies with Query: LSUB "" "*" failed on Squirrelmail
by Gavin Henry 24 Jan '07

24 Jan '07

Just upgraded, and then had to downgrade straight away. Couldn't get our Squirrelmail page up. Logged in fine etc. but got: Query: LSUB "" "*" failed, refer to server logs etc. Nothing in logs that shows error with mail_debug=yes What should I be looking for? Gavin. -- Kind Regards, Gavin Henry. Managing Director. T +44 (0) 1224 279484 M +44 (0) 7930 323266 F +44 (0) 1224 824887 E ghenry(a)suretecsystems.com Open Source. Open Solutions(tm). http://www.suretecsystems.com/

3 10

[Dovecot] default_pass_scheme = PLAIN-MD5 dont work :(
by mancausoft 24 Jan '07

24 Jan '07

I config postfix+mysql+dovecot for SASL SMTP autentication. It works if set: default_pass_scheme = PLAIN and store plain-text password in mysql I'm change default_pass_scheme = PLAIN with default_pass_scheme = PLAIN-MD5 an store password in mysql with md5('passwd') and dovecotpw -s PLAIN-MD5 -p test {PLAIN-MD5} and md5("test") = 098f6bcd4621d373cade4e832627b4f6 but don't work: Jan 24 13:02:31 domain postfix/smtpd[18461]: connect from [x.x.x.x] Jan 24 13:02:37 domine dovecot: auth-worker(default): mysql: Connected to localhost (mail_info) Jan 24 13:02:39 domain postfix/smtpd[18461]: warning: [x.x.x.x]: SASL CRAM-MD5 authentication failed: PDI3Nac3ODA2NjQ0Njg4MzMuMTE2OTY0Mzc1N0BrbHVnY3QtY3Jldz4= Jan 24 13:02:40 domain postfix/smtpd[18461]: lost connection after AUTH from [x.x.x.x] Why?? where are the errors?? -- Email.it, the professional e-mail, gratis per te: http://www.email.it/f Sponsor: Questo inverno scaldale il cuore, con il prezioso calore di un Diamante. * Non lasciarti sfuggire lo sconto del 20% riservato a te! Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=5630&d=24-1

2 2

[Dovecot] dovecotpw/sql crypt scheme core dump with rc17-19
by Andre Dalle 24 Jan '07

24 Jan '07

Platform is Solaris 8 on a 280R. I'm setting up a new installation of Dovecot, and I ran into some troubles that I've partly tracked down. I setup auth/user dbs with LDAP initially, and things worked well. Passwords are stored as "{crypt}zxcv..." in LDAP. I setup SQL, and began getting this: dovecot: Jan 23 16:37:47 Error: child 8718 (auth-worker) killed with signal 11 Passwords are stored as "zxcv..." in SQL. I changed default_pass_scheme from CRYPT to PLAIN, and no troubles. I then tried dovecotpw: dovecotpw -p 123 -s PLAIN-MD5 {PLAIN-MD5}202cb962ac59075b964b07152d234b70 dovecotpw -p 123 -s CRYPT Segmentation Fault (core dumped) So I then tried this: truss dovecotpw -p 123 -s crypt open64("/dev/urandom", O_RDONLY) = 3 read(3, "F80E82 c", 4) = 4 fcntl(3, F_GETFD, 0x00000000) = 0 fcntl(3, F_SETFD, 0x00000001) = 0 open64("/usr/local/lib/dovecot/auth/password", O_RDONLY|O_NDELAY) Err#2 ENOENT read(3, "8382", 2) = 2 Incurred fault #6, FLTBOUNDS %pc = 0xFF0E3304 siginfo: SIGSEGV SEGV_MAPERR addr=0x00000005 Received signal #11, SIGSEGV [default] siginfo: SIGSEGV SEGV_MAPERR addr=0x00000005 *** process killed *** Suffice to say, there is no "/usr/local/lib/dovecot/auth/password". I'm guessing that the dovecot auth-worker process is failing for the same reason but I don't know how to debug that one. I have core files for the dovecotpw process. -- André Dalle Systems Administrator NCF Internet

2 2

[Dovecot] All index file bugs fixed(?)
by Timo Sirainen 23 Jan '07

23 Jan '07

I fixed the nightly snapshot building. Now it's again being built every night (if there have been any changes). Please test it before I'll make rc18 release. http://dovecot.org/nightly/dovecot-latest.tar.gz I've also been stress testing a lot with http://dovecot.org/tools/imaptest.c. Last night I ran it for 9 hours with mmap_disable=yes and it picked up only one race condition, which is also now fixed. I'll run the next night with mmap_disable=no and see if anything shows up with it. I'm hopeful that there aren't any important index file related bugs left anymore. This is actually the first time in Dovecot's existence that I'm really not aware of *any* bugs in index file handling. v1.0 release should be really near now, unless you figure out new problems :) Here's a list of bugs that should have been fixed since rc17: "Corrupted index file dovecot.index: Record field keywords points outside record size (12 < 12+2)" "Corrupted Index file dovecot.index: Record [1].uid=0" Crashes - http://dovecot.org/list/dovecot-cvs/2007-January/007395.html "open() failed with file dovecot.index.log: No such file or directory" - http://dovecot.org/list/dovecot-cvs/2007-January/007405.html "Fixed index file dovecot.index: seen_messages_count 8 -> 9" "View synchronization from transaction log failed: Deleted counter wrong" etc. - http://dovecot.org/list/dovecot-cvs/2007-January/007403.html Corrupted transaction log errors: - http://dovecot.org/list/dovecot-cvs/2007-January/007389.html - http://dovecot.org/list/dovecot-cvs/2007-January/007393.html Corrupted view errors: - http://dovecot.org/list/dovecot-cvs/2007-January/007366.html - http://dovecot.org/list/dovecot-cvs/2007-January/007368.html Corrupted cache file errors: - http://dovecot.org/list/dovecot-cvs/2007-January/007364.html Fixed a lot of crashes whenever something went wrong (I deleted index files every 3 seconds until it crashed, last run went for several minutes before I stopped trying): - http://dovecot.org/list/dovecot-cvs/2007-January/007397.html

5 15

[Dovecot] 1.0.rc18 released
by Timo Sirainen 23 Jan '07

23 Jan '07

http://dovecot.org/releases/dovecot-1.0.rc18.tar.gz http://dovecot.org/releases/dovecot-1.0.rc18.tar.gz.sig I think we're quite near v1.0 now. * ACL plugin + Maildir: Moved dovecot-acl file from control directory to maildir. To prevent accidents caused by this change, Dovecot kills itself if it finds dovecot-acl file from the control directory. * When opening a maildir, check if tmp/'s atime is over 8h old. If it is, delete files in it with ctime older than 36h. However if atime - ctime > 36h, it means that there's nothing to be deleted and the scanning isn't done. We update atime ourself if filesystem is mounted with noatime. * base_dir doesn't need to be group-readable, don't force it. * mail_read_mmaped setting is deprecated and possibly broken. It's now removed from dovecot-example.conf, but it still works for now. * Removed also umask setting from dovecot-example.conf since currently it doesn't do what it's supposed to. + Authentication cache caches now also userdb data. + Added mail_log plugin to log various mail operations. Currently it logs mail copies, deletions, expunges and mailbox deletions. - dict quota: messages=n parameter actually changed storage limit. - A lot of fixes to handling index files. This should fix almost all of the problems ever reported. - LDAP: auth_bind=yes was more or less broken. - Saved mails and dovecot-keywords file didn't set the group from dovecot-shared file. - Fixed potential assert-crash while searching messages - Fixed some crashes with invalid X-UID headers in mboxes - If you didn't have a namespace with empty prefix, giving STATUS command for a non-existing namespace caused the connection to give "NO Unknown namespace" errors for all the future commands.

4 6

[Dovecot] Dovecot-1.0.rc17 on Solaris10 = assert_error
by Kevin Richter 23 Jan '07

23 Jan '07

Hi, i have a problem with dovecot rc17 on Solaris10. I have compiled Dovecot and openSSL in 32bit: CFLAGS="-I/opt/openssl-0.9.7l/include" LDFLAGS="-L/opt/openssl-0.9.7l/lib -R/opt/openssl-0.9.7l/lib" ./configure --prefix=/opt/dovecot-1.0.rc17 --with-ssl=openssl --with-ssldir=/opt/openssl-0.9.7l --enable-shared --disable-ipv6 --with-file-offset-size=32 make and make install ran without errors or warnings. The /opt/dovecot-1.0.rc17/var/log says: dovecot: Jan 16 11:20:05 Error: IMAP(kric0999): file lib.c: line 13 (nearest_power): assertion failed: (num <= ((size_t)1 << (BITS_IN_SIZE _T-1))) The error occures whenever i start my mail client and the authorization is successful. Cam anyone help me? Regards, Kevin Richter

2 6

[Dovecot] Current state of mulit-server NFS setups
by Justin McAleer 23 Jan '07

23 Jan '07

Hi list, I've been perusing the list archives, but I couldn't find a recent, definitive answer to what I'd like to know. I'm looking to set up a new batch of servers to migrate ~160,000 accounts, spread across several domains, onto (from CommuniGate). Last year I worked with the earlier beta/RC versions of Dovecot, so I'm generally familiar with the setup required. However, a lot of development has been done since I was last dealing with it. So, what I'd like to end up with is a load balanced group of servers providing pop and imap access with quota support using an NFS filesystem. We have a new Netapp device (forget the actual model) that can do SAN/iSCSI/NFS. We tried using various clustered filesystems previously, but the performance/stability issues were a nightmare, so I've fallen back to NFS (or perhaps SAN if users can't hit any server in the group). So, what does my dovecot setup need to be? I've seen some people say they disable indexing in the LDA, but allow pop/imap to index. Some say the attribute cache needs to be disabled, which I'd think would be worse than just disabling indexes. Some say indexes should be kept on local disk (dedicated server for users), and others seem to report problems even when doing so. Is there a general consensus? I was also wondering if dovecot's sanity checking on the indexes would allow each server in a balanced group to keep indexes on local disk (so if the maildir has changed on another server, dovecot rebuilds it). If so, does that take away all performance gains from having indexes at all? Thanks for any info you all can provide.

2 1

[Dovecot] Maildir Quota backend
by Ioannis Zachariadis 23 Jan '07

23 Jan '07

Hi, I've noticed that in the maildir backend for the quota plugin the quota limit is being read in kilobytes. In the quota-maildir.c at maildir_quota_init() , line 550 (rc18) if (strncmp(*args, "storage=", 8) == 0) { size = strtoull(*args + 8, NULL, 10) * 1024; if (size != 0) root->message_bytes_limit = size; root->master_message_limits = TRUE; } The value that's being read from storage is supposed to be in kB, at least that's what I understand from the wiki, and then the value of size is stored in bytes. thanks -- giannis.

2 1

[Dovecot] LDAP authentication stops working...
by Adrian Close 23 Jan '07

23 Jan '07

Hi all, I'm running dovecot-1.0.rc17 on OpenBSD 3.9, using userdb and passdb methods of "ldap" (SSL on 636/tcp) in addition to "passwd". Occasionally (generally after a few hours of operation, but not always), LDAP-based logins stop working (e.g. hang/timeout after POP3 PASS command). Accounts with local passwords (as opposed to accounts with a password field of "x") still work fine at this point. 'tcpdump' shows the persisient 636/tcp connection still with bidirectional traffic (PUSH/ACKs and ACKs like normal). After restarting Dovecot, things are fine until next time. I guess I could try and get login_ldap working with bsdauth, but if there's an issue in the Dovecot LDAP support I'd like to see it fixed. Any ideas? Thanks, Adrian Close P.S. I note the LDAP timeout logging patch but it won't apply easily to rc17 and I'm hoping the issue has progressed since then anyway...

7 14

[Dovecot] X-UID: 4085788205 != 2147483647
by Stephen Gowing 23 Jan '07

23 Jan '07

Hi, Dovecot (at least versions 0.99.10.4, 0.99.11, 1.0rc15, rc17 and rc18) allows message Unique Identifiers to be an unsigned 32 bit value, so something like "X-UID: 4085788205" is allowed. Some IMAP clients I've tested (Thunderbird 1.5.0.9, SquirrelMail 1.4.9a/PHP 4.3.2) appear to use signed 32 bit identifiers and request the above message as UID 2147483647 (max signed 32 bit integer). Evolution 2.0.2 fetches 4085788205 without complaint. Is there any chance Dovecot could decide to invalidate and renumber a folder when identifiers greater than 2147483647 are found? sbg

2 1

[Dovecot] mysteriously disappearing RECENT flag
by Vadim Zeitlin 22 Jan '07

22 Jan '07

Hello, I've decided to switch from UW-IMAP to Dovecot and so installed 1.0.rc15-2 on a Debian/Etch system and started using it with the existing MBOX folders. My configuration is pretty much the default one, in particular I didn't touch to any of mbox_xxx options. The (hoped for) performance improvements were indeed quite noticeable and mostly it works just fine but I seem to have one strange problem with the recent messages: Dovecot seems to reset the RECENT flag on the message right *before* the mailbox is opened. So even if a message was just copied to a folder (e.g. by email client filtering), it doesn't have RECENT flag when the mailbox is opened. Here is an example of what I see: % telnet localhost 143 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. * OK [CAPABILITY IMAP4rev1 SASL-IR SORT THREAD=REFERENCES MULTIAPPEND UNSELECT LITERAL+ IDLE CHILDREN NAMESPACE LOGIN-REFERRALS STARTTLS AUTH=PLAIN] Dovecot ready. 1 login user password 1 OK Logged in. 2 status test (messages recent unseen) * STATUS "test" (MESSAGES 41 RECENT 0 UNSEEN 0) 2 OK Status completed. [--- switch to another window and copy a message to the test folder ---] 3 status test (messages recent unseen) * STATUS "test" (MESSAGES 42 RECENT 1 UNSEEN 0) 3 OK Status completed. 4 select test * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 42 EXISTS * 0 RECENT * OK [UIDVALIDITY 1048987099] UIDs valid * OK [UIDNEXT 407] Predicted next UID 4 OK [READ-WRITE] Select completed. 5 status test (messages recent unseen) * STATUS "test" (MESSAGES 42 RECENT 0 UNSEEN 0) 5 OK Status completed. 6 fetch 42 flags * 42 FETCH (FLAGS (\Seen)) 7 logout * BYE Logging out 7 OK Logout completed. Connection closed by foreign host. Why does Dovecot send "0 RECENT" when the mailbox is opened when it had just told that there was a recent message in it? And why is the message effectively old (no \Recent in the FETCH reply)? Notice that if I look at the MBOX file I see "Status: R" until command number 7, it becomes "Status: RO" only when I log out -- but internally Dovecot clearly considers it to be old long before that. Am I doing something wrong? Or is this the expected behaviour and, in this case, is there any way to change it to the more expected one (UW-IMAP-like)? Thanks in advance, VZ

2 3

[Dovecot] RC18 core dumps
by Cassidy B. Larson 22 Jan '07

22 Jan '07

Still seeing a few core dumps via the deliver process and corrupted transaction log files with RC18: Jan 22 10:46:36 zahara deliver(user(a)host.com): Corrupted transaction log file /data/mail/host.com/us/user(a)home.com/dovecot.index.log: start_offset (71680) > file size (71520) Jan 22 10:46:36 zahara deliver(user(a)host.com): seq = 6, rec->uid = 0, first_new_seq = 6, records = 5 Jan 22 10:46:36 zahara kernel: pid 41186 (deliver), uid 127: exited on signal 6 (core dumped) Jan 22 10:50:17 zahara deliver(user(a)host.com): Corrupted transaction log file /data/mail/host.com/us/user(a)host.com/dovecot.index.log: Append with UID 512, but next_uid = 513 However, if the user gets another email, it appears deliver doesnt core dump again. Thoughts? -c

2 1

[Dovecot] mail_log plugin in RC18
by Roger Weeks 22 Jan '07

22 Jan '07

On Jan 22, 2007, at 8:37 AM, Timo Sirainen wrote: > + Added mail_log plugin to log various mail operations. Currently it > logs mail copies, deletions, expunges and mailbox deletions. Hi Timo - I saw this addition and it sounds very useful in our enviroment. Can the plugin be enabled for specific users? Or is is a system-wide only plugin? -- Roger J. Weeks Systems & Network Administrator Mendocino Community Network

3 2

[Dovecot] Logging
by Ioannis Zachariadis 22 Jan '07

22 Jan '07

I use the syslog facility for logging purposes. I was wondering if there is a way to redirect all logs to mail.* For example, there are user.* messages.. can I change all of them to mail.* ? thanks. -- giannis.

3 9

[Dovecot] Dovecot rc15 crash in mbox-sync-update.c
by Steven F Siirila 22 Jan '07

22 Jan '07

Here is another crash we've been seeing recently in rc15 on Solaris 10. (gdb) bt full #0 0xff1c12a4 in ?? () No symbol table info available. #1 0xff140040 in ?? () No symbol table info available. #2 0x000786a8 in t_buffer_alloc (size=688976) at data-stack.c:346 __PRETTY_FUNCTION__ = "file %s: line %" #3 0x00078190 in t_pop () at data-stack.c:149 frame_block = (struct stack_frame_block *) 0x7fffffff #4 0x00042a90 in mbox_sync_update_status (ctx=0x8f7e0) at mbox-sync-update.c:267 No locals. #5 0x00041730 in mbox_sync_rewrite (sync_ctx=0xffbff548, mail_ctx=0x39d5, end_offset=14098141, move_diff=27645, extra_space=1, first_seq=45, last_seq=163) at mbox-sync-rewrite.c:552 mails = (struct mbox_sync_mail *) 0xcf238 offset = 1 dest_offset = 4294967295 next_end_offset = 14079696 next_move_diff = 6 start_offset = 1275633 expunged_space = 0 idx = 185 first_nonexpunged_idx = 0 padding_per_mail = 50 count = 542 ret = 0 __PRETTY_FUNCTION__ = "mktime(today) fail" #6 0x0003db84 in mbox_sync (mbox=0xc09c0, flags=32407386) at mbox-sync.c:1375 index_sync_ctx = (struct mail_index_sync_ctx *) 0xc1d58 sync_view = (struct mail_index_view *) 0xc1d90 sync_ctx = {mbox = 0xc09c0, flags = 0, input = 0xc5878, file_input = 0xc5750, write_fd = 10, index_sync_ctx = 0xc1d58, sync_view = 0xc1d90, t = 0xc3340, hdr = 0xc1dd8, header = 0xb6900, from_line = 0xb68d8, base_uid_validity = 1143728609, base_uid_last = 5161, base_uid_last_offset = 1538, mails = {buffer = 0xb6928, element_size = 56}, syncs = {buffer = 0xb6950, element_size = 20}, sync_rec = {uid1 = 0, uid2 = 0, type = 0, add_flags = 0 '\0', remove_flags = 0 '\0', keyword_idx = 0}, mail_keyword_pool = 0xc3598, saved_keywords_pool = 0xc36a0, prev_msg_uid = 5494, next_uid = 5709, idx_next_uid = 1, seq = 586, idx_seq = 587, need_space_seq = 45, expunged_space = 0, space_diff = -27680, dest_first_mail = 0, first_mail_crlf_expunged = 0, delay_writes = 0} seq = 4294967295 offset = 18446744073709551615 lock_id = 3 ret = 0 changed = 1 #7 0x0003e2c8 in mbox_sync (mbox=0xb8128, flags=0) at mbox-sync.c:1312 index_sync_ctx = (struct mail_index_sync_ctx *) 0x7e9 sync_view = (struct mail_index_view *) 0x1ee3429 sync_ctx = {mbox = 0x164d, flags = MBOX_SYNC_LAST_COMMIT, input = 0x24a, file_input = 0x24b, write_fd = 45, index_sync_ctx = 0x0, sync_view = 0x0, t = 0x0, hdr = 0xffffffff, header = 0xffff93e0, from_line = 0x0, base_uid_validity = 0, base_uid_last = 0, base_uid_last_offset = 18428719917034373157, mails = {buffer = 0x10, element_size = 753960}, syncs = {buffer = 0xb7e14, element_size = 753960}, sync_rec = {uid1 = 753104, uid2 = 752648, type = 563200, add_flags = 0 '\0', remove_flags = 8 '\b', keyword_idx = 788928}, mail_keyword_pool = 0x0, saved_keywords_pool = 0x0, prev_msg_uid = 13, next_uid = 2155905152, idx_next_uid = 7, seq = 4290770536, idx_seq = 433948, need_space_seq = 563200, expunged_space = -18024225394221448, space_diff = 2418925581670400, dest_first_mail = 0, first_mail_crlf_expunged = 0, delay_writes = 0} seq = 32386076 offset = 2516850835456 lock_id = 4294967295 ret = 788928 changed = 753960 #8 0x00069f24 in mail_storage_class_register (storage_class=0xb8128) at mail-storage.c:42 No locals. #9 0x00028fe0 in imap_sync_deinit (ctx=0xc09c0) at imap-sync.c:83 status = {messages = 706560, recent = 705536, unseen = 0, uidvalidity = 0, uidnext = 753216, first_unseen_seq = 0, keywords = 0x3e7} #10 0x00021248 in cmd_status (cmd=0xb7e14) at cmd-status.c:91 client = (struct client *) 0xb7dd0 args = (struct imap_arg *) 0xb8078 status = {messages = 745216, recent = 2, unseen = 4290771088, uidvalidity = 0, uidnext = 0, first_unseen_seq = 0, keywords = 0xffbff830} storage = (struct mail_storage *) 0xb7c08 real_mailbox = 0xb8128 "mail/AutoFiled/2006" str = (string_t *) 0x10 #11 0x0002287c in client_handle_input (cmd=0xb7dd0) at client.c:380 client = (struct client *) 0x210e8 __PRETTY_FUNCTION__ = "parameter \0\0\0\0\0\0Inva" #12 0x0007e3bc in timeout_add (msecs=743112, callback=0xab800, context=0xac400) at ioloop.c:152 timeout = (struct timeout *) 0x2 #13 0x0007dcb4 in _seek (stream=0xb56c8, v_offset=3039960672808960, mark=116) at istream-mmap.c:149 No locals. #14 0x0002ab24 in main (argc=-4195379, argv=0xab800, envp=0xac400) at main.c:123 No locals. (gdb) quit -- Steven F. Siirila Office: Lind Hall, Room 130B Internet Services E-mail: sfs(a)umn.edu Office of Information Technology Voice: (612) 626-0244 University of Minnesota Fax: (612) 626-7593

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[Dovecot] can i set "folder alias"?
by John Wong 22 Jan '07

22 Jan '07

when i use mailclientA to send mail, then the mailclientA program default will save it to folder "sendA", when i use mailclientB to send mail, then the mailclientB program default will save it to folder "sendB". i know i can configure the mailclient program to use which folder, but can i set something like "folder alias"? imap { # ln -s sendA sendB folder alias = "sendA = sendB"; folser alias = "draftA = draftB"; ....... } i use dovecot-1.0rc17, imap, maildir sorry, i don't speak english

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Re: [Dovecot] Deliver log entries have no date and time
by Timo Sirainen 22 Jan '07

22 Jan '07

On Sun, 2007-01-21 at 12:09 -0500, My BSD wrote: > This works but keeps the double quotes (""), please see below: > > "deliver([username]): "Jan 21 11:43:42 "Info: auth input: > [username]" Yea, bug, fixed again: http://dovecot.org/list/dovecot-cvs/2007-January/007476.html

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Re: [Dovecot] Deliver log entries have no date and time
by Timo Sirainen 21 Jan '07

21 Jan '07

On Sun, 2007-01-21 at 10:37 -0500, My BSD wrote: > Deliver's log entries do not include a date and time: > > "deliver([username]): Info: auth input: [username]" Fixed: http://dovecot.org/list/dovecot-cvs/2007-January/007474.html You can also uncomment log_timestamp from dovecot.conf to make it work.

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[Dovecot] feature request: proxy destination in logs
by Marshal Newrock 21 Jan '07

21 Jan '07

I would like to be able to see in the logs which server a pop/imap connection is proxied to. Thank you. -- Marshal Newrock, Ideal Solution LLC http://www.idealso.com

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[Dovecot] MRTG
by Luigi Rosa 21 Jan '07

21 Jan '07

Quite a long ago someone proposed a patch to allow the Dovecot data to be collected and displayed via MRTG. Is there anyone who is actually using MRTG to analyze Dovecot traffic? Ciao, luigi -- / +--[Luigi Rosa]-- \ Barometer: an ingenious instrument which indicates what kind of weather we are having.

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[Dovecot] Message size incorrect?
by Tristan Woudenberg - Prism Mail Solutions 20 Jan '07

20 Jan '07

Hi there, I recently installed a plugin for SquirelMail (php imap client, squirrelmail.org) which adds up message sizes per folder to display a nice total size of each subscribed folder. After consulting the plugin maintainers at SquirrelMail in this thread: http://thread.gmane.org/gmane.mail.squirrelmail.plugins/12468/focus=12468 There is quite a discrepancy in the rfc822.size reported by Dovecot and the actual space it takes up on my harddisk. I know there could be some overhead here from all the dovecot* and subscription list files in my imap folders, but like I stated in my email to the SquirrelMail plugin mailing list, about 1mb for a 4.3mb maildir mailbox might be a but much. Could this be like Tomas Kuliavas wrote: "Maybe those message have some data that does not belong to message or their formating breaks dovecot's message parsing functions."? I'm using Dovecot-1.0.rc15, sorry if this has been fixed between this release and the current. Kindest regards, Tristan -- Prism Mail Solutions Deployment, customization and hosting http://prism.nl

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Re: [Dovecot] dovecot-auth file descriptor usage
by Timo Sirainen 20 Jan '07

20 Jan '07

On Tue, 2007-01-16 at 16:33 -0600, Steven F Siirila wrote: > > I'm now just wondering if it's only dovecot-auth that doesn't notice the > > socket closing for some reason, or if the imap-login processes proxying > > SSL didn't really close the socket after all. > > I have attached our dovecot.conf and a "pfiles" (like lsof) output of > dovecot-auth, showing all of its open file descriptors. I hope this helps. > If there is anything else I can provide to shed more light, let me know. login_processes_count = 32 This means that Dovecot always keeps extra 32 login processes that don't do anything else than wait for new connections. That's not at least helping :) Anyway, I'd like to get lsof of an imap-login process that is doing SSL proxying. Unfortunately I don't think there's any simple way to know what processes are doing that and what aren't. Setting login_process_count=1 at least makes it more likely that you'll hit the right process. If trussing the process shows that it's writing some garbage to file descriptor 1, it's probably proxying SSL..

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[Dovecot] Mistake in Wiki
by Juha Saarinen 20 Jan '07

20 Jan '07

http://wiki.dovecot.org/LDA reads: "Exim System-users Replace/rewrite the default local_delivery router:" I believe it should refer to a the default local_deliver transport, and not router. The page is immutable so can't edit it. -- Juha http://www.geekzone.co.nz/juha

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[Dovecot] stale locks
by Thomas Hummel 20 Jan '07

20 Jan '07

Hello Timo, I'm running dovecot-1.0.rc15 (imap and pop) postfix-2.3.5,1 procmail-3.22_6 (which is my LDA) on FreeBSD 6.1-STABLE I'm still using the mbox format (I'm planning to migrate to Maildir soon), mailboxes are on an NFS filesystem. I regulary see stale dotlocks files (either from dovecot (29 bytes, hold the pid of the process) or procmail (1 byte) and processes stucked in Disk Wait state. The only way I can get ridd of them is to restart nfslocking remove the .lock file change the inode of the mailbox file locking strategies are fcntl for mbox_read in dovecot dotlock fcntl for mbox_write in dovecot dotlock fcntl for procmail so I can't figure out why I see such stale locks and processes. Note : I disabled nfs attribute caching so I avoid cache related issues (such as a dotlock showing up late, etc...) Besides, I often see several imap-login processes for the same remote IP address. Does it means the user has several instances of his UA running or is it the behavior of some UA (Eudora ? Thunderbird ?) even if only one instance is run by the user. In any case, wouldn't that be dead-lock/stale lock prone ? -- Thomas Hummel | Institut Pasteur <hummel(a)pasteur.fr> | Pôle informatique - systèmes et réseau

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