- dovecot - dovecot.org

[Dovecot] imaps tls/ssl and stupid clients
by Michael Moritz 28 May '05

28 May '05

We have been using dovecot now as replacement for qpopper for over 2 weeks and it's working nicely. I have now tried to enable ssl/tls for myself and other inhouse users which also works fine. But the problem is that I use an uncertified certificate. Which is not a problem for kmail, as it just pops up a box asking whether I want to accept the certificate or not. But apparently, some stupid email programs used by other people just hang up on an uncertified certificate. I have figured out that ssl_disable = yes is the critical setting. If it's set everything works, if not, then all services allow tls/ssl and the stupid clients choke on it. Since others just use pop3 I wonder whether there is a way I can disable tls support for pop3 but enable it for imap or even only for imaps? Any ideas or am I starting from the wrong side? Thanks and regards, mimo

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[Dovecot] Excessive dovecot-auth proceses
by Andrew Hutchings 28 May '05

28 May '05

Hi Guys, I may have missed something in the conf file but while using a standard mysql auth method I'm finding many dovecot-auth processing sitting doing nothing. They grow to the extent that mysql runs out of connections after a week. Any ideas? Regards Andrew -- Andrew Hutchings (A-Wing) Linux Guru - Netserve Consultants Ltd. - www.domaincity.co.uk Admin - North Wales Linux User Group - www.nwlug.org.uk BOFH excuse 423: It's not RFC-822 compliant.

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[Dovecot] Assertion Failure in mbox-sync.c
by Todd Burroughs 28 May '05

28 May '05

I've been getting a few of these errors on a couple different mboxes. This is using the CVS version as of May 14. So far, these are the only errors and it looks like most/all of the older ones are gone. (maybe I shouldn't say that ;-) dovecot: May 16 17:41:07 Error: 20973 IMAP(todd.bluegenesis.com): file mbox-sync.c: line 1165 (mbox_sync_handle_eof_updates): assertion failed: (file_size >= sync_ctx->file_input->v_offset) dovecot: May 16 17:41:10 Error: child 20973 (imap) killed with signal 6 (gdb) bt full #0 0xffffe410 in ?? () No symbol table info available. #1 0xbffff518 in ?? () No symbol table info available. #2 0x00000006 in ?? () No symbol table info available. #3 0x000051ed in ?? () No symbol table info available. #4 0xb7ef1d41 in raise () from /lib/tls/libc.so.6 No symbol table info available. #5 0xb7ef3529 in abort () from /lib/tls/libc.so.6 No symbol table info available. #6 0x0809911a in i_internal_panic_handler ( fmt=0x6 <Address 0x6 out of bounds>, args=0x51ed <Address 0x51ed out of bounds>) at failures.c:374 No locals. #7 0x08099534 in i_panic ( format=0x80a5ccc "file %s: line %d (%s): assertion failed: (%s)") at failures.c:173 No locals. #8 0x0806ef4b in mbox_sync (mbox=0x80c3ba8, flags=Variable "flags" is not available. ) at mbox-sync.c:1165 index_sync_ctx = Variable "index_sync_ctx" is not available. (gdb) bt #0 0xffffe410 in ?? () #1 0xbffff518 in ?? () #2 0x00000006 in ?? () #3 0x000051ed in ?? () #4 0xb7ef1d41 in raise () from /lib/tls/libc.so.6 #5 0xb7ef3529 in abort () from /lib/tls/libc.so.6 #6 0x0809911a in i_internal_panic_handler ( fmt=0x6 <Address 0x6 out of bounds>, args=0x51ed <Address 0x51ed out of bounds>) at failures.c:374 #7 0x08099534 in i_panic ( format=0x80a5ccc "file %s: line %d (%s): assertion failed: (%s)") at failures.c:173 #8 0x0806ef4b in mbox_sync (mbox=0x80c3ba8, flags=Variable "flags" is not available. ) at mbox-sync.c:1165 #9 0x08068891 in mbox_transaction_commit (_t=0x80cf430, flags=Variable "flags" is not available. ) at mbox-transaction.c:56 #10 0x0808d333 in mailbox_transaction_commit (t=0x0, flags=0) at mail-storage.c:418 #11 0x08058b56 in cmd_store (cmd=0x80bcb98) at cmd-store.c:122 #12 0x08059685 in _client_input (context=0x80bcb58) at client.c:334 #13 0x0809e5da in io_loop_handler_run (ioloop=0x80bb9b0) at ioloop-poll.c:184 #14 0x0809dcf9 in io_loop_run (ioloop=0x80bb9b0) at ioloop.c:218 #15 0x08060587 in main (argc=1, argv=0xbffffa44, envp=0xbffffa4c) at main.c:228 I'm not sure about the variables here, the core file's still here if any other info will help: (gdb) p sync_ctx->input->real_stream->statbuf $5 = {st_dev = 0, __pad1 = 0, __st_ino = 0, st_mode = 0, st_nlink = 0, st_uid = 0, st_gid = 0, st_rdev = 0, __pad2 = 0, st_size = 4294967295, st_blksize = 0, st_blocks = 0, st_atim = {tv_sec = 1116279667, tv_nsec = 0}, st_mtim = {tv_sec = 1116279667, tv_nsec = 0}, st_ctim = { tv_sec = 1116279667, tv_nsec = 0}, st_ino = 0} (gdb) p sync_ctx->file_input->v_offset $8 = 142294527 The mbox size is larger than 142294527 I did notice this, but I'm not sure if I'm looking at the correct variable and don't think the size is large enough to matter, anyway. (gdb) pt sync_ctx->input->real_stream->statbuf->st_size type = long long int (gdb) pt sync_ctx->file_input->v_offset type = long long unsigned int Todd

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[Dovecot] Plain Text Auth
by Adam Barrett 28 May '05

28 May '05

I dont know where I went wrong, I have got the Dovecot finally looking for an auth, but it doesnt accept my passwords. Let me know what you need to see and I will post it... THanks! -- Adam Barrett dragen(a)gmail.com

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[Dovecot] Migrating Dovecot 0.99 to 1.0stable
by Nicolas STRANSKY 28 May '05

28 May '05

Hi, I'm planing to move a big mail server currently under Dovecot 0.99 to Dovecot 1.0 stable. One problem I had once when doing this was that all the UIDL had to change and that all users using pop3 and leaving their messages on the server had to re-download all of them, which is annoying. I'd like to know to the UIDL really have to change when migrating from 0.99 to 1.0stable or if this was a configuration problem on my side. Are there any tips for this to be as transparent as possible for the users ? Thank you. -- Nico L'idée que la science peut et doit être organisée selon des règles à la fois fixes et universelles est utopique et pernicieuse. -+- Paul Feyerabend -+-

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[Dovecot] 1.0-test70
by Timo Sirainen 28 May '05

28 May '05

http://dovecot.org/test/ - vpopmail authentication fix - many mmap_disable=yes fixes and a few optimizations - pop3 hang fix - mbox fix for "last-uid lost" error (hopefully last one) - mbox fix for losing dirty flag, causing lost message flags mmap_disable=yes seems to be finally working pretty well. There should be no more cache file related errors with it enabled. I'm still seeing "UID inserted in the middle of mailbox" error a couple of times in hour (out of ~320000 logins/h), so mbox code is still not perfect but I'd think it's good enough for normal use :)

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[Dovecot] Dovecot as an email proxy
by sam wun 28 May '05

28 May '05

Hi list, I m new to Dovecot. I have installed the software in freebsd 5.4 and I m wondering how to setup up a mail proxy gateway that consist of Dovecot, postfix(or qmail), ASSP, Clamav in a box? I m very apprecate for every suggestion. Thanks Sam

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[Dovecot] Transaction log file issue on dovecot-stable
by John and Catherine Allen 28 May '05

28 May '05

Situation: dovecot-stable-20050528 on x86, Linux 2.4.30, ext3, maildir I'm trying to use the imapsync utility (http://www.linux-france.org/prj/imapsync/) to copy 1500 messages from a UW-imap server to dovecot. After about 100 messages are successfully appended, I'm seeing this in the server log, following which all APPENDs fail. May 28 09:01:06 [dovecot] IMAP(allen): utime(/home/allen/Maildir/dovecot-uidlist.lock) failed: No such file or directory May 28 09:01:06 [dovecot] IMAP(allen): Our dotlock file /home/allen/Maildir/dovecot-uidlist.lock was deleted May 28 09:01:06 [dovecot] IMAP(allen): Corrupted transaction log file /home/allen/Maildir/dovecot.index.log: Append with UID 3718, but next_uid = 3719 May 28 09:01:06 [dovecot] IMAP(allen): Lost transaction log file /home/allen/Maildir/dovecot.index.log seq 6 May 28 09:01:07 [dovecot] IMAP(allen): Lost transaction log file /home/allen/Maildir/dovecot.index.log seq 6 May 28 09:01:07 [dovecot] IMAP(allen): Corrupted transaction log file /home/allen/Maildir/dovecot.index.log: Append with UID 3718, but next_uid = 3719 John -- John Allen Bofferdange, Luxembourg allen(a)vo.lu http://www.homepages.lu/allen

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Re: [Dovecot] imap disconnects on my account only
by Mitch Pirtle 28 May '05

28 May '05

Whups, reply-to went to the poster :-/ On 5/27/05, Chris Wakelin <c.d.wakelin(a)reading.ac.uk> wrote: > Just a guess, but have you changed your /etc/groups (or equivalent) file > today? I'm not a Fedora expert (or dovecot-0.99), though. I think it's > more likely to be a change in the user/group databases than a change in > Dovecot. I have added myself to another group (for a website directory) but have not changed my default group or anything like that. -- Mitch

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[Dovecot] imap disconnects on my account only
by Mitch Pirtle 28 May '05

28 May '05

Talk about personal problems! I am using dovecot-0.99.13-4.FC2, and everything has been going fine for months. Earlier this afternoon, Thunderbird's status pane would say 'Sending authenticate login information...' and I would no longer receive email. When I checked with others, they were fine and dandy. I tried kmail, evolution, and even tried webmail. All had connection errors. Checking the logs I can see the following: May 27 14:07:58 mongo imap-login: Login: mitchy [162.84.141.200] May 27 14:07:58 mongo imap(mitchy): getgroups() failed: Invalid argument May 27 14:07:58 mongo dovecot: child 3264 (imap) returned error 89 I can see new messages in $Maildir, so it is all about authentication, which I am completely clueless about as it has been working for as long as I have had this server. What steps can I take to debug the situation? -- Mitch

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