August 2008 - dovecot

[Dovecot] Wishlist: TLS,SSL cipher in a variable.
by R A 30 Aug '08

30 Aug '08

Hello again. Just thought I'd ask and see if it would be possible to get this sometime in the future: TLS and SSL connection information in a variable like %c today, but more exhaustive. For example I can from postfix get a log like: postfix/smtpd[432]: Anonymous TLS connection established from xxxxxx: TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits) This would be nice to see if you have a fairly low permissive level, to identify potential weak clients and be able to notify these to start with while still allowing connections. -Roger

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[Dovecot] Problem with squirrelmail and dovecot 1.1
by Gerhard Wiesinger 30 Aug '08

30 Aug '08

Hello! Has noone any idea? Ciao, Gerhard -- http://www.wiesinger.com/ -------------------------------------------------------- Hello! I'm running squirrelmail 1.4.8 (I know this is not the latest version) and know I'm having troubles with: 1.) Folder list view 2.) Save to sent or Drafts folder. Configuration worked well. I think it has to do with the upgrade from dovecot 1.0 to 1.1 and the LIST command. Thunderbird/alpine work well. Commands from rawlog are: A002 LIST "" "~/Mail/Drafts" A002 OK List completed. or A002 LIST "" "~/Mail/sent" A003 CREATE "~/Mail/sent" A002 OK List completed. A003 NO Mailbox exists. Has something changed in the folder behaviour of dovecot from 1.0 to 1.1? If you need more information please let me know it. Any ideas? Thnx. Ciao, Gerhard -- http://www.wiesinger.com/

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[Dovecot] Dovecot-1.1.2 assertion failure in preparsed_parse_next_header_init
by Mike Abbott 30 Aug '08

30 Aug '08

Panic: IMAP(user): file message-parser.c: line 684 (preparsed_parse_next_header_init): assertion failed: (ctx->part- >physical_pos >= ctx->input->v_offset) Linux 2.6.24-19-386 Maildir on ext3 Looks similar to but different from http://dovecot.org/list/dovecot/2008-June/031523.html . #0 0xb7faf410 in __kernel_vsyscall () #1 0xb7e6f085 in raise () from /lib/tls/i686/cmov/libc.so.6 #2 0xb7e70a01 in abort () from /lib/tls/i686/cmov/libc.so.6 #3 0x080d2b65 in default_fatal_finish (type=<value optimized out>, status=0) at failures.c:149 #4 0x080d2bba in i_internal_fatal_handler (type=LOG_TYPE_PANIC, status=0, fmt=0x80e5fec "file %s: line %d (%s): assertion failed: (%s)", args=0xbfb4b1d4 "\017L\017\b?\002") at failures.c:423 #5 0x080d246c in i_panic ( format=0x80e5fec "file %s: line %d (%s): assertion failed: (%s)") at failures.c:190 #6 0x080cc246 in preparsed_parse_next_header_init (ctx=0x812b650, block_r=0xbfb4b24c) at message-parser.c:684 #7 0x080cbc0d in message_parser_parse_next_block (ctx=0x812b650, block_r=0xbfb4b24c) at message-parser.c:753 #8 0x080cbd5e in message_parser_parse_body (ctx=0x812b650, hdr_callback=0x80968a0 <parse_bodystructure_part_header>, context=0x812e658) at message-parser.c:816 #9 0x08097f21 in index_mail_parse_body (mail=0x8122668, field=MAIL_CACHE_IMAP_BODYSTRUCTURE) at index-mail.c:753 #10 0x08098026 in index_mail_parse_bodystructure (mail=0x8122668, field=MAIL_CACHE_IMAP_BODYSTRUCTURE) at index-mail.c:860 #11 0x0809852c in index_mail_get_special (_mail=0x8122668, field=MAIL_FETCH_IMAP_BODYSTRUCTURE, value_r=0xbfb4b370) at index-mail.c:983 #12 0x08078a18 in maildir_mail_get_special (_mail=0x6, field=0, value_r=0xbfb4b370) at maildir-mail.c:437 #13 0x080643f4 in fetch_bodystructure (ctx=0x810b708, mail=0x8122668, context=0x0) at imap-fetch.c:450 #14 0x08064960 in imap_fetch (ctx=0x810b708) at imap-fetch.c:309 #15 0x0805e44e in cmd_fetch (cmd=0x810b670) at cmd-fetch.c:152 #16 0x080625cc in client_command_input (cmd=0x810b670) at client.c:580 #17 0x08062675 in client_command_input (cmd=0x810b670) at client.c:629 #18 0x08062e43 in client_handle_input (client=0x810b418) at client.c:670 #19 0x0806305e in client_input (client=0x810b418) at client.c:725 #20 0x080da4a7 in io_loop_handler_run (ioloop=0x8109a60) at ioloop- epoll.c:201 #21 0x080d9628 in io_loop_run (ioloop=0x8109a60) at ioloop.c:308 #22 0x0806ab5d in main (argc=Cannot access memory at address 0x2acc ) at main.c:293 (gdb) frame 6 #6 0x080cc246 in preparsed_parse_next_header_init (ctx=0x812b650, block_r=0xbfb4b24c) at message-parser.c:684 684 i_assert(ctx->part->physical_pos >= ctx->input->v_offset); (gdb) p ctx $1 = (struct message_parser_ctx *) 0x812b650 (gdb) p ctx->input $2 = (struct istream *) 0x8113618 (gdb) p ctx->part $3 = (struct message_part *) 0x812e7c0 (gdb) p *ctx $4 = {parser_pool = 0x812b638, part_pool = 0x0, input = 0x8113618, parts = 0x812e730, part = 0x812e7c0, hdr_flags = 3, flags = MESSAGE_PARSER_FLAG_SKIP_BODY_BLOCK, last_boundary = 0x0, boundaries = 0x0, skip = 0, last_chr = 0 '\0', want_count = 0, hdr_parser_ctx = 0x0, parse_next_block = 0x80cc1e0 <preparsed_parse_next_header_init>, part_seen_content_type = 0, broken = 1} (gdb) p *ctx->part $5 = {parent = 0x812e778, next = 0x0, children = 0x0, physical_pos = 688, header_size = {physical_size = 90, virtual_size = 93, lines = 0}, body_size = {physical_size = 505, virtual_size = 514, lines = 9}, flags = 72, context = 0x0} (gdb) p *ctx->input $6 = {v_offset = 759, stream_errno = 0, mmaped = 0, blocking = 1, closed = 0, seekable = 1, eof = 0, real_stream = 0x81135f0}

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[Dovecot] mailbox lock
by Thiago Monaco Papageorgiou 30 Aug '08

30 Aug '08

Hello! I need to use my lock method into the dovecot to block a mailbox. I am using maildir format, is there an API that I can implement? I need it because there are others systems which already use my lock method. Best regards. -- Thiago Monaco Papageorgiou <thiago.monaco(a)corp.terra.com.br> ________________________ Terra Networks Brasil S/A Tel: +55 (51) 3284-4274

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[Dovecot] maildir, zlib and mtime/internal date
by Richard Platel 29 Aug '08

29 Aug '08

On the wiki: http://wiki.dovecot.org/Plugins/Zlib I think there should be a step 5.0. along the lines of "get and remember the original message file's mtime" And a step 5.4 like "Using the touch command or some other method, set the now compressed message's mtime back to the mtime of the original message file." To preserve the message's internal time in case the indices ever get rebuilt. Does this sound right?

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[Dovecot] Sieve fileinto a subfolder fails
by Rich McAllister 29 Aug '08

29 Aug '08

I'm using Dovecot 1.0.10 on Ubuntu 8.04, using the packages from the distro; exim4 is my MTA and it's configured according to the instructions in the wiki, everything is working fine for delivery into the Maildir INBOX via Dovecot's LDA and reading mail via IMAP using Thunderbird. My habit on previous mail systems was to create a Lists folder and subfolders under Lists for each mailing list I subscribe to. I tried to use Dovecot sieve to sort mail into the folders with sieve filters like require "fileinto"; if header :contains "Subject" "[NCCC]" { fileinto "Lists/NCCC"; } else { keep; } I created Lists/NCCC via Thunderbird (so I could set the "check this folder for new mail property") but when Dovecot tries to deliver into the folder, I get the log message msgid=<...>: Couldn't open mailbox Lists/NCCC: Invalid mailbox name If I use just fileinto "NCCC"; it works fine, going into a NCCC folder not in a subfolder as expected. Is there some other syntax for specifying folder/subfolder names in Dovecot sieve, or do I just have to live with the folders all at the top level? Rich dovecot -n shows: # 1.0.10: /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login mail_privileged_group: mail mail_location: maildir:/arda/export/mail/%u/Maildir auth default: passdb: driver: pam userdb: driver: passwd

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Re: [Dovecot] Lots of assertion PANICs in error log
by Yates Ian Mr (ITCS) 29 Aug '08

29 Aug '08

This patch seems to have done the trick! Keep up the good work! Cheers. I.

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[Dovecot] Sieve fileinto a subfolder fails -- more info, possible workaround
by Rich McAllister 29 Aug '08

29 Aug '08

After looking at the way Maildir represents subfolders, I changed the sieve line from fileinto "Lists/NCCC"; to fileinto "Lists.NCCC"; and now it files into the NCCC subfolder of Lists as I wanted. I'm not sure whether this is the expected behavior or just an accident that plugging that string into the file name happens to result in the right name. I haven't tried, but if it's just passing the fileinto argument along with minimal inspection, I'm afraid the answer might be use "Lists/NCCC" if mail is in mbox format but "Lists.NCCC" if mail is in Maildirs, and it certainly seems that users editing their sieve scripts shouldn't have to know that. Rich dovecot -n shows: # 1.0.10: /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login mail_privileged_group: mail mail_location: maildir:/arda/export/mail/%u/Maildir auth default: passdb: driver: pam userdb: driver: passwd

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[Dovecot] Dovecot - T-Bird - RETR command failed
by Calvin Gordon 29 Aug '08

29 Aug '08

I have recently installed new untangle firewalls ( untangle.com) in Bridge mode at two office locations. Both offices collect mail from a Fedora 9, postfix,dovecot server at location #1. Since the install of the untangles i have been plagued by Thunderbird Errors while trying to POP email. The error says "RETR" command failed. If the user logs into the webmail (Squirrelmail) on the mail server and cleans out his inbox by deleting all existing mail, T-Bird starts operating again. This error has repeated itself without a pattern i can identify dozens of time over the last few weeks. No other email client displays errors. T-Bird = 2.0.0.16 on XP or Vista OS UT = 5.3.0~svn20080624r1690release5.3-1sarge Dovecot = Version : 1.0.15, Release : 10.fc9 Postfix = Version : 2.5.1, Release : 2.fc9 Dovecot tail -f maillog | grep 'username' Aug 6 13:37:06 mailserver1 dovecot: pop3-login: Login: user=<username>, method=PLAIN, rip=::ffff:128.1.1.5, lip=::ffff:128.1.1.10 Aug 6 13:37:07 mailserver1 dovecot: POP3(username): Disconnected top=0/0, retr=1/2287, del=0/1, size=2270 Has anyone else seen this issue with T-Bird ? Cal G

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[Dovecot] Online backup with dovecot
by Johan 'yosh' Marklund 29 Aug '08

29 Aug '08

Hi! Do you guys/girls (whichever you prefer) know if it's possible (i.e. in some semitransparent/easy way) to incorporate an online backup system? If the mail is older than a set amount of days it gets compressed. I want my mail storage size to shrink but on the other hand I want to keep the mails I get and have them easily readable :) I'm thinking of symlinks and some kind of gzip fuse filesystem... Please save me ,) /yosh

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