- dovecot - dovecot.org

[Dovecot] imap segfault in mail-cache.c
by Todd Burroughs 08 Apr '05

08 Apr '05

Found an imap crash. I'm using the CVS copy from March 23. This is running under Linux, kernel 2.6.11.something. We use mbox over NFS, everything is on the NFS server. There is currently only one dovecot server accessing the mailbox. Here's the log messages: dovecot: Apr 05 13:11:20 Error: 27911 IMAP(support): UIDVALIDITY changed (1112720886 -> 1112721068) in mbox file /mailhome/new/m/support/mbox dovecot: Apr 05 13:11:20 Error: 27911 IMAP(support): mbox sync: UID inserted in the middle of mailbox /mailhome/new/m/support/mbox (316790 > 316789) dovecot: Apr 05 13:11:20 Error: 27911 IMAP(support): Corrupted index cache file /mailhome/new/m/support/.imap/INBOX/dovecot.index.cache: indexid changed dovecot: Apr 05 13:11:20 Error: child 27911 (imap) killed with signal 11 Here's a backtrace. Note that cache->hdr is NULL. Core was generated by `imap'. Program terminated with signal 11, Segmentation fault. #0 0x080777f9 in mail_cache_lock (cache=0x80c4e20) at mail-cache.c:404 404 cache->hdr_copy = *cache->hdr; (gdb) bt #0 0x080777f9 in mail_cache_lock (cache=0x80c4e20) at mail-cache.c:404 #1 0x0807a1e9 in mail_cache_handler_init (ctx_r=0xbffff3d8, cache=0x80c4e20) at mail-cache-sync-update.c:40 #2 0x0807a3a0 in mail_cache_expunge_handler (sync_ctx=0xbffff520, seq=32, data=0x80cc964, context=0x80c8ce0) at mail-cache-sync-update.c:85 #3 0x08081ba3 in mail_index_sync_record (ctx=0xbffff520, hdr=0x80c5e34, data=0x80cb590) at mail-index-sync-update.c:135 #4 0x080826b9 in mail_index_sync_update_index (sync_ctx=0x80c5d98, sync_only_external=0) at mail-index-sync-update.c:648 #5 0x08080913 in mail_index_sync_commit (ctx=0x80c5d98) at mail-index-sync.c:595 #6 0x0806e432 in mbox_sync (ibox=0x80c3fe0, flags=MBOX_SYNC_REWRITE) at mbox-sync.c:1418 #7 0x08067eb9 in mbox_storage_close (box=0x80c3fe0) at mbox-storage.c:914 #8 0x0808a72d in mailbox_close (box=0xffffff02) at mail-storage.c:299 #9 0x08057efc in _cmd_select_full (cmd=0x80b9050, readonly=0) at cmd-select.c:50 #10 0x08057f31 in cmd_select (cmd=0x80b9050) at cmd-select.c:99 #11 0x080593f5 in _client_input (context=0x80b9010) at client.c:334 #12 0x0809b28a in io_loop_handler_run (ioloop=0x80b79e8) at ioloop-poll.c:184 #13 0x0809a9a9 in io_loop_run (ioloop=0x80b79e8) at ioloop.c:218 #14 0x080602a7 in main (argc=1, argv=0xbffffa34, envp=0xbffffa3c) at main.c:229 (gdb) bt full #0 0x080777f9 in mail_cache_lock (cache=0x80c4e20) at mail-cache.c:404 view = (struct mail_index_view *) 0x80c4748 ext = (const struct mail_index_ext *) 0x80c62c8 i = 0 ret = -1 #1 0x0807a1e9 in mail_cache_handler_init (ctx_r=0xbffff3d8, cache=0x80c4e20) at mail-cache-sync-update.c:40 ctx = (struct mail_cache_sync_context *) 0x80c6958 ret = Variable "ret" is not available. (gdb) p cache->hdr $1 = (const struct mail_cache_header *) 0x0 Todd Burroughs

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[Dovecot] Archiving Dovecot format maildir
by Leslie Viljoen 08 Apr '05

08 Apr '05

Hi! It seems that the Maildir format used by Dovecot is a standard, right? Has anyone written something to archive mail in Dovecot format maildirs? I have a script that seems to be for Cyrus IMAP but it doesn't seem to work. I'll write a Perl program if there is nothing available but I am concerned about dovecot's index files - do I need to do anything to get dovecot to rebuild them? Leslie Viljoen

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[Dovecot] headers don't match message
by Kevin 08 Apr '05

08 Apr '05

the other day i moved all mail functions to a different machine. i copied over my existing maildir's and installed dovecot-stable-20050405. once i had everything moved and dovecot running i checked my mail via imap. all the messages appeared however when i try to read a message the message body doesn't match the header info that's showed in the message list. is this an index problem? or did i corrupt my maildir when i moved it over to another host?

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[Dovecot] public or shared folders
by Richard Stegman 08 Apr '05

08 Apr '05

Hello I would like to setup a public namespace with folders under it that are accessiable by certain users. Something like this: Projects---- | |-----03060 | |-----04579 Users should be able to move emails from their inbox to the shared folders, and all user can see the moved email. Here is what I have done so far: 1. I installed dovecot-1.0-0 4 stable20050221.rhf3.at.i386.rpm to a Fedora core 3 machine with Postfix and procmail. 2. Tested mail server - both pop and imap work. 3. Modified dovecot conf. file with the following entry: namespace private { separator = / prefix = inbox = yes hidden = no } namespace public { separator = . prefix = Projects. location = maildir:/var/mail/Projects inbox = no hidden = no } 4. Restart dovecot. Test - imap and pop work. 5. Create group imapu. Add email users to group imapu 6. Create (as root) /var/mail/Projects. Change group to imapu. Change mode 770 7. Touch file dovecot-shared to /var/mail/Projects. Change group to imapu. Change mode 770 8. Make directory /var/mail/Projects/.03060. Change group to imapu. Change mode 770 9. Touch file dovecot-shared to /var/mail/Projects/.03060. Change group to imapu. Change mode to 770 10. Restart dovecot. I start up thunderbird and the Project namespace shows up. I then subscribe to 03060 and get this error: The current command did not succeed. The mail server responded: Error in IMAP command UID: Invalid BODY[..] parameter: Missing '>' <10240.-1357>'. I click ok and I can move email from the inbox to 03060. The mail shows up in 03060. No other user can then subscribe to 03060. What am I doing wrong? Thanks Rick

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[Dovecot] pam problems
by Matthieu Imbert 07 Apr '05

07 Apr '05

Hi, i'm quite new to dovecot. i built it from the stable-1.0 sources. i have the following error messages in syslog when trying to launch dovecot: dovecot: Dovecot v1.0-stable starting up dovecot: auth(default): Unknown passdb type 'pam' dovecot: Auth process died too early - shutting down dovecot: child 373 (auth) returned error 89 i googled a bit, and found some posts on this mailing list describing the same problem, and the answer is that pam support is not compiled in. So i tried to ensure pam support would be compiled: i made sure that i have the proper libs. I work on debian so i did: apt-get install libpam-runtime libpam-modules apt-show-version tells me the version numbers installed: ... libpam-modules/testing uptodate 0.76-22 libpam0g/testing uptodate 0.76-22 libpam-runtime/testing uptodate 0.76-22 libpam-ldap/stable uptodate 140-1 ... my configure line is as follows: ./configure --sysconfdir=/etc --localstatedir=/var --with-ssl=openssl --with-pam when running configure, the only line related to pam is the following: checking for pam_start in -lpam... no and at the end of the configure script i get the following summary: Building with user database modules : static passwd passwd-file checkpassword (modules) Building with password lookup modules : passwd passwd-file shadow checkpassword (modules) So it seems that pam support is not built in. What is the lib i am missing ? Any help appreciated, thanks -- \|||/ (o o) Matthieu Imbert ooO-(_)-Ooo------------------------------------------ équipe administration réseau et systèmes Ecole normale superieure lettres et sciences humaines 15, Parvis René Descartes BP 7000 69342 LYON cedex 07 tél 0437376127, secrétariat 0437376122 fax 0437376123 contact équipe réseau et systèmes <reseau(a)ens-lsh.fr> contact personnel <matthieu.imbert(a)ens-lsh.fr> -----------------------------------------------------

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Re: [Dovecot] Dovecot 1.0 POP3 login but no mail
by david＠stpenable.com 06 Apr '05

06 Apr '05

I followed Geralds' instructions and dovecot returns "0 0" to stat cmd and "0 messages:" to list. So it thinks there are zero when there are over 40 in "%h/.maildir". I had not changed my config file before reboot so how can this happen? It worked prior to reboot and not after. I get no maillog errors, what next? Thx. David "David Wynter" <david(a)stpenable.com> wrote .. > Dovecot is installed on the hosted FC1 server I have, it was working fine > until yesterday when they had to bounce the server. I can login fine from > Outlook or connect telnet <hostname> 110. But even though I can see sendmail > has received mail into my %h/.maildir (via webmail's user mail facility) > when I log into dovecot via Outlook it does not retrieve any of it. > > I tried from W2K "telnet <hostname> 110", it connects "+OK dovecot ready.", > then I typed "LOGIN <username> <password>" and i get "-ERR Unknown > command.". However with Outlook it logs in fine I see in maillog the result, > no other errors in maillog. Cannot see what is wrong. Here are the important > bits of my dovecot.conf, everything else is std. i.e. commented out > > protocols = pop3 > login = imap > login = pop3 > default_mail_env = maildir:%h/.maildir > client_workarounds = outlook-idle > mbox_locks = fcntl > auth = default > auth_userdb = passwd > auth_passdb = pam > auth_user = root > auth_verbose = yes > > Ideas on where to look next? > > Thx > > David

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[Dovecot] Delimiter of mailbox changes in response to STATUS command...
by Lawrence Katz 06 Apr '05

06 Apr '05

Hi - I've been using Hastymail with my Dovecot server for awhile now. However, I have noticed that at some point Hastymail stopped showing the number of unseen messages in its folder drop down list, it just shows 0 for the folders that I have it checking for unseen messages. I'm not sure when it broke, but I think it's when I went to one of the testing builds several months ago. I just upgraded to Hastymail 1.3 and Dovecot testing66 today just to see if the issue would go away and it hasn't. So I did some digging and I think I found the cause of the issue... If I send a STATUS command, like the one shown below, Dovecot changes the mailbox delimiter in the result from a "/" to a "."... 2 STATUS "Misc/Spam" (UNSEEN) * STATUS "Misc.Spam" (UNSEEN 3) 2 OK Status completed. I was able to work around this in Hastymail by substituting a "/" for a "." when the result comes back, but it's not that elegant. Any thoughts on why this might be happening in Dovecot? Is it a configuration issue on my part, or a bug? The private namespace in my dovecot.conf has the following: separator = / Thanks, Lawrence

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[Dovecot] dovecot crashes
by Geo Carncross 06 Apr '05

06 Apr '05

I'm getting these over and over again in my dovecot [CVS] logs. I'm using PAM for authentication- something that worked a few weeks ago. Apr 6 15:22:11 [PAM-env] Unknown PAM_ITEM: <XAUTHORITY> Apr 6 15:22:11 [dovecot-auth] PAM pam_putenv: delete non-existent entry; XAUTHORITY dovecot: Apr 06 15:22:16 Warning: Killed with signal 2 dovecot: Apr 06 15:22:16 Error: child 25731 (imap) killed with signal 2 dovecot: Apr 06 15:22:16 Error: child 27545 (login) killed with signal 2 dovecot: Apr 06 15:22:16 Error: child 20320 (login) killed with signal 2 -- Internet Connection High Quality Web Hosting http://www.internetconnection.net/

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[Dovecot] Dovecot 1.0 POP3 login but no mail
by David Wynter 06 Apr '05

06 Apr '05

Dovecot is installed on the hosted FC1 server I have, it was working fine until yesterday when they had to bounce the server. I can login fine from Outlook or connect telnet <hostname> 110. But even though I can see sendmail has received mail into my %h/.maildir (via webmail's user mail facility) when I log into dovecot via Outlook it does not retrieve any of it. I tried from W2K "telnet <hostname> 110", it connects "+OK dovecot ready.", then I typed "LOGIN <username> <password>" and i get "-ERR Unknown command.". However with Outlook it logs in fine I see in maillog the result, no other errors in maillog. Cannot see what is wrong. Here are the important bits of my dovecot.conf, everything else is std. i.e. commented out protocols = pop3 login = imap login = pop3 default_mail_env = maildir:%h/.maildir client_workarounds = outlook-idle mbox_locks = fcntl auth = default auth_userdb = passwd auth_passdb = pam auth_user = root auth_verbose = yes Ideas on where to look next? Thx David

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[Dovecot] change POP3 default prompt
by Ing. Alejandro Rodriguez 06 Apr '05

06 Apr '05

ppl for security reasons I'dont want that the default prompt for the POP3 be +OK Dovecot ready. don't want an attacker can guess my POP3 server easily, any idea?? want something like +OK mydomain.com ready. regards A

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