February 2008 - dovecot

[Dovecot] Dovecot auth-master socket as postfix table lookup source.
by Uldis Pakuls 11 Feb '08

11 Feb '08

Hi all. Intro: Timo has already done great job providing patch which allows postfix to authenticate directly against dovecot (included in latest postfix sorce code/release). Now I'm looking around for one more thing. I want to use dovecot's user db as source for postfix lookup tables. In particular: virtual_mailbox_maps Main reason is - postfix access rules and fighting against spam. This will allow to look up dovecot dovecot's user-db and check status of user. If user not exist mail is rejected at SMTP protocol level (instead of accepting mail and later getting bounce for dovecot's deliver). Rules I use looks like: smtpd_recipient_restrictions = permit_sasl_authenticated, permit_auth_destination, reject Of course I can write simple script which duplicates dovect's user-db information in format usable by postfix's postmap (this is way in all may mail systems works now). What I want is implement lookups directly against dovecot. Such table can be used for postfix virtual deliver too. It seems implement Dovecot authentication protocol for use in postfix table lookup mechanism is relative easy. Also there is no need to patch complete postfix source code. Postfix allow to create pugins (external dynamically loadable libraries) for such task. recent postfix source code already includes such plugins for mysql, ldap etc.. My question is - my be some one has already made such plugin or my be someone is interested to cooperate in such job. [my be Timo itsef?:))] Uldis

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[Dovecot] OT: Skins for Squirrelmail - looking for a reminder
by Mike Brudenell 09 Feb '08

09 Feb '08

Greetings - On one of the mailing lists I'm on there was a recent-ish discussion about webmail clients, and someone mentioned a site selling sets of skins for SquirrelMail... the entire set was about $300. I'm trying to track down the site but seem to have deleted the message I'd carefully been keeping. I recall an off-topic discussion along these lines here recently, but can't locate anything about skins in the archives. Can anyone recall this? Or am I mis-remembering it as being here on this list? Confused, but then it is Friday... :-) Cheers, Mike B-) -- The Computing Service, University of York, Heslington, York Yo10 5DD, UK Tel:+44-1904-433811 FAX:+44-1904-433740 * Unsolicited commercial e-mail is NOT welcome at this e-mail address. *

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[Dovecot] replacement for IMAP_EMPTYTRASH=Trash:7
by Rody 08 Feb '08

08 Feb '08

While running dovecot on debian etch using version 1.0.rc15-2etch3, i wonder the following: If i read the config files correctly, dovecot seems to have no equivalent of courier's IMAP_EMPTYTRASH=Trash:7 setting. Therefore, i wrote a script that dives into the user's directories and their maildirs. It looks like this: ============================================= #!/bin/bash for pad1 in $(ls /home) do if [ -e "/home/$pad1/Maildir/.Prullenbak" ] then find "/home/$pad1/Maildir/.Prullenbak/cur" -mtime +2 -type f -delete find "/home/$pad1/Maildir/.Prullenbak/new" -mtime +2 -type f -delete fi if [ -e "/home/$pad1/Maildir/.Allerlei.Spam" ] then find "/home/$pad1/Maildir/.Allerlei.Spam/cur" -mtime +2 -type f -delete find "/home/$pad1/Maildir/.Allerlei.Spam/new" -mtime +2 -type f -delete fi done ============================================ Now, can i just put a script like this in /etc/hourly or do i have to add things like stopping the dovecot deamon (i sure hope not!) in order to prevent file-corruption? Or has dovecot in the meantime got a config option that does this just like courier does? Rody

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[Dovecot] location of .subscriptions
by Jochen 08 Feb '08

08 Feb '08

Hello, I just installed dovecot (1.0.10) to replace UW-IMAP. So far almost everything works. But I need shared folders (mbox format). I hope I've set up everything but when a user subscribes to one of the shared folders a file .subscriptions with perm 600 is created in the parent directory of the shared mailboxes ("namespace public" below). As I understand the docs that file should go to the user's home directory, right? What did I wrong? Thank you in advance. Here is my dovecot.conf (comments and blank lines stripped): ---- snip ---- protocols = imap imaps pop3 disable_plaintext_auth = no ssl_disable = yes mail_location = mbox:~/mbox:INBOX=/var/mail/%u:INDEX=/var/mailindexes/%u namespace private { inbox = yes } namespace public { prefix = Public/ location = mbox:/var/spool/imap:INDEX=/var/mailindexes hidden = no } mail_full_filesystem_access = yes mbox_read_locks = fcntl mbox_write_locks = fcntl protocol imap { } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } protocol lda { } auth default { mechanisms = plain passdb shadow { } userdb passwd { } user = root } dict { } plugin { } ---- snip ---- --

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[Dovecot] (message_parse_header_next): assertion failed:, +(IS_LWSP(line->value[0])) 1.1beta14
by Adam McDougall 08 Feb '08

08 Feb '08

I noticed these happen when one of my users searches his Trash folder which he doesn't empty. He uses thunderbird and it is reproducable. Feb 5 22:47:39 boomhauer dovecot: IMAP(username): file message-header-parser.c: line 350 (message_parse_header_next): assertion failed: +(IS_LWSP(line->value[0])) Feb 5 22:47:41 boomhauer dovecot: child 8022 (imap) killed with signal 6 Feb 5 22:48:21 boomhauer dovecot: IMAP(username): file message-header-parser.c: line 350 (message_parse_header_next): assertion failed: +(IS_LWSP(line->value[0])) Feb 5 22:48:24 boomhauer dovecot: child 8121 (imap) killed with signal 6 Feb 5 22:49:13 boomhauer dovecot: IMAP(username): file message-header-parser.c: line 350 (message_parse_header_next): assertion failed: +(IS_LWSP(line->value[0])) Feb 5 22:49:15 boomhauer dovecot: child 8171 (imap) killed with signal 6 I hope this is enough of a backtrace, let me know if not: GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-marcel-freebsd"... Core was generated by `imap'. Program terminated with signal 6, Aborted. Reading symbols from /usr/local/lib/libiconv.so.3...done. Loaded symbols for /usr/local/lib/libiconv.so.3 Reading symbols from /lib/libc.so.6...done. Loaded symbols for /lib/libc.so.6 Reading symbols from /usr/local/lib/dovecot/imap/lib01_acl_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib01_acl_plugin.so Reading symbols from /usr/local/lib/dovecot/imap/lib20_fts_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib20_fts_plugin.so Reading symbols from /usr/local/lib/dovecot/imap/lib21_fts_squat_plugin.so...done. Loaded symbols for /usr/local/lib/dovecot/imap/lib21_fts_squat_plugin.so Reading symbols from /libexec/ld-elf.so.1...done. Loaded symbols for /libexec/ld-elf.so.1 #0 0x00000000109d54ac in __res_pquery () from /lib/libc.so.6 (gdb) bt #0 0x00000000109d54ac in __res_pquery () from /lib/libc.so.6 #1 0x00000000004a8e1b in i_panic (format=0x4d60e0 "Tue") at failures.c:191 #2 0x00000000004a0149 in message_parse_header_next (ctx=0x18c3f00, hdr_r=0x7fffffffdff0) at message-header-parser.c:341 #3 0x00000000004a11e9 in parse_content_type (ctx=0x600180, hdr=0x0) at message-parser.c:441 #4 0x00000000004a1bb6 in message_parser_init_from_parts (parts=0x450f848, input=0x7fffffffe0c0, hdr_flags=32767, flags=16769184) at message-parser.c:718 #5 0x0000000010c2355d in fts_mailbox_search_next_nonblock () from /usr/local/lib/dovecot/imap/lib20_fts_plugin.so #6 0x000000000046b353 in mailbox_search_deinit (_ctx=0xc42200) at mail-storage.c:624 #7 0x0000000000418f2f in imap_search_deinit (cmd=0x60c300, ctx=0x61d048) at cmd-search.c:64 #8 0x000000000041916e in cmd_search_more (cmd=0x4b2216) at cmd-search.c:119 #9 0x00000000004b25ef in io_loop_handle_timeouts_real (ioloop=0x5ff240) at ioloop.c:257 #10 0x00000000004b263d in io_loop_handle_timeouts_real (ioloop=0x5ff240) at ioloop.c:267 #11 0x00000000004b351e in io_loop_handler_run (ioloop=0x5ff240) at ioloop-kqueue.c:123 #12 0x00000000004b2690 in io_loop_handle_timeouts_real (ioloop=0x5ff240) at ioloop.c:280 #13 0x00000000004265de in main_deinit () at main.c:269 #14 0x000000000041418e in _start (ap=0x0, cleanup=0x7fffffffe6ad) at /usr/src/lib/csu/amd64/crt1.c:69 #15 0x00007fffffffe6ca in ?? () #16 0x00007fffffffe6dd in ?? () #17 0x00007fffffffe6f8 in ?? () #18 0x00007fffffffe709 in ?? () #19 0x00007fffffffe71a in ?? () #20 0x00007fffffffe733 in ?? () #21 0x00007fffffffe747 in ?? () # 1.1.beta14: /usr/local/etc/dovecot.conf ssl_cert_file: /usr/local/etc/apache2/ssl/mail.pem ssl_key_file: /usr/local/etc/apache2/ssl/mail.pem login_dir: /var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login mail_max_userip_connections: 25 verbose_proctitle: yes first_valid_uid: 1000 first_valid_gid: 1000 mail_extra_groups: postlocal mail_location: maildir:%h/Maildir:CONTROL=%h/Maildir/dovecot/private/control:INDEX=%h/Maildir/dovecot/private/indexes mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes mail_drop_priv_before_exec: yes mail_plugins: acl fts fts_squat mail_log_max_lines_per_sec: 0 imap_client_workarounds: delay-newmail netscape-eoh tb-extra-mailbox-sep namespace: type: private separator: / inbox: yes list: yes subscriptions: yes namespace: type: private separator: / prefix: mail/ hidden: yes subscriptions: yes namespace: type: private separator: / prefix: Mail/ hidden: yes subscriptions: yes namespace: type: public separator: / prefix: #shared/decs/ location: maildir:/egr/mail/shared/decs:CONTROL=%h/Maildir/dovecot/public/control/decs:INDEX=%h/Maildir/dovecot/public/indexes/decs list: yes subscriptions: yes auth default: passdb: driver: pam userdb: driver: passwd args: system_user= socket: type: listen client: path: /var/spool/postfix/private/auth mode: 384 user: postfix group: postfix plugin: acl: vfile:/usr/local/etc/dovecot-acls:cache_secs=10 fts: squat

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[Dovecot] Thunderbird can't see a maildir named .Inbox (yeah I know, poor name)
by Adam McDougall 08 Feb '08

08 Feb '08

I discovered by chance while migrating some user email to dovecot, one of them had a mailbox called "Inbox" and my script migrated it to a Maildir called .Inbox but Thunderbird could not see it at all, even in subscription lists. I tested with my account and it looks like mutt CAN see it. This seems like a client issue so I'll just make my migration script rename anything called Inbox to avoid it, but I thought I would send a note incase anyone else trips on it.

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[Dovecot] Can't get apop to work.
by Greg Lorriman 07 Feb '08

07 Feb '08

Hi Folks, I'm fairly new to linux so this message may reflect that. dovecot info (running on CentOS 5.0): protocols: pop3s listen: ssl_cert_file: /etc/pki/dovecot/certs/dovecot.pem ssl_key_file: /etc/pki/dovecot/private/dovecot.pem login_dir: /usr/local/var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/pop3-login mail_executable: /usr/local/libexec/dovecot/pop3 mail_plugin_dir: /usr/local/lib/dovecot/pop3 pop3_uidl_format: %v.%u auth default: debug: yes debug_passwords: yes passdb: driver: pam userdb: driver: passwd If I select apop as one of the allowed protocols (in order to avoid having to use ssl) I get this error message in the mail log : "APOP mechanism can't be supported with given passdbs" I tried fiddling with PAM by adding an /etc/pam.d/apop file with these contents : auth required pam_unix.so nullok account required pam_unix.so makes no difference, in anycase as much reading as I;ve done to understand PAM I still have not much clue: the docs are quite obscure. My /etc/pam.d/dovecot file looks like this : #%PAM-1.0 auth required pam_nologin.so auth include system-auth account include system-auth session include system-auth At this point I seem to be out of options. I've been through the docs, and trawled the internet. Anyone know what I'm doing wrong? Thanks, Greg --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.

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[Dovecot] Editing sieve scripts via webmail?
by Tobias Balle-Petersen 07 Feb '08

07 Feb '08

Hello... I have dovecot 1.0.10 running with the sieve plugin and virtual users (LDAP). My webmail is squirrelmail. I want to allow the users to create sieve-scripts via a squirrelmail-plugin. The plugins seems to require that the IMAP-server is cyrus. What are the options for dovecot? Thanks, Tobias

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[Dovecot] backup strategy
by Jochen Kaechelin 07 Feb '08

07 Feb '08

what's the prefered way to backup users mail? i use doevcot shipping with debian/etch an maildir. thanx -- jochen

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[Dovecot] Static list of users with passdb pam
by Koen Vermeer 07 Feb '08

07 Feb '08

Hi, On my system, I want to provide imap access for some of the users listed in /etc/passwd. The list of users should be provided by me, and should just be a list in a text file. All the userdb options are static (uid, gid, home directory). Unfortunately, I cannot think of a way to configure Dovecot to do this. The closest I get is with: passdb pam {} userdb passwd-file { args = /path/to/passwd-file } However, the passwd-file is now more complex than it really needs to be, as it includes fields for password, uid, gid and home directory as well. Is there some way to handle this? Or am I trying to do something stupid? Thanks! Koen

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