- dovecot - dovecot.org

[Dovecot] need help
by Gabriele Fergola 14 May '08

14 May '08

I tried to migrate from a server courier to dovecot with imapsync but i get this errore: Couldn't append msg #15 (Subject:[Registrazione]) to folder INBOX: Error sending command '16 APPEND INBOX (\Answered \Seen) "" {3478} ': 16 BAD Invalid internal date. thk you in advance Workino

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[Dovecot] Problem with virtual mail user login users uid not permitted
by Neil Muller 14 May '08

14 May '08

Hello, I am trying to run exim 4.68 and dovecot 1.0.13 on Solaris 10 x86 5/08 using dovecot lda and sieve with virtual users and domains, tls and ssl. At the moment certificates are from my internal CA Exim and Dovecot, dovecot lda and dovecot sieve were downloaded and installed from Blastwave. Mail delivery (ie from Exim to dovecot via dovecot lda) is working correctly but when I try to access mail using imap from a client (eg. Thunderbird) the login fails. My mail user for accessing virtual user mail is vmail (uid=954, gid=954). I have attached the messages from dovecot.log and the output of dovecot -n below as well as contents from the passdb file. Can anyone point me to where I've gone wrong, I've had this working fine on Linux but Solaris just doesn't seem to want to play :-) Thanks, Neil -- E neil(a)neologix.net My passdb file contents: lothar# cat /opt/csw/etc/vmail/comms.neologix/passwd neil:{MD5-CRYPT}$1$Lik.5MFj$PJKYoXEfADgTiK1PI6aa01:954:954::/export/ home/vmail/comms.neologix/users/ neil::userdb_quota=maildir:storage=10240 mail_plugins=cmusieve,quota,imap_quota sieve=.dovecot.sieve Contents of dovecot.log: dovecot: May 12 15:13:45 Info: auth(default): passwd-file /opt/csw/etc/ vmail/comms.neologix/passwd: Read 2 users dovecot: May 12 15:13:45 Info: auth(default): passwd-file(neil(a)comms.neologix ,192.168.1.100): lookup: user=neil file=/opt/csw/etc/vmail/ comms.neologix/passwd dovecot: May 12 15:13:45 Info: auth(default): client out: OK 1 user=neil(a)comms.neologix mail_plugins=cmusieve,quota,imap_quota sieve=.dovecot.sieve dovecot: May 12 15:13:45 Error: user neil(a)comms.neologix: Logins with login_user's UID 954 not permitted (see http://wiki.dovecot.org/ UserIds). dovecot: May 12 15:13:45 Info: auth(default): master in: REQUEST 1 16850 1 dovecot: May 12 15:13:45 Info: auth(default): passwd(neil(a)comms.neologix,192.168.1.100): lookup dovecot: May 12 15:13:45 Info: auth(default): passwd(neil(a)comms.neologix,192.168.1.100): unknown user dovecot: May 12 15:13:45 Info: auth(default): passwd-file(neil(a)comms.neologix ,192.168.1.100): lookup: user=neil file=/opt/csw/etc/vmail/ comms.neologix/passwd dovecot: May 12 15:13:45 Info: auth(default): master out: USER 1 neil(a)comms.neologix uid=954 gid=954 home=/export/home/ vmail/comms.neologix/users/neil quota=maildir:storage=10240 dovecot: May 12 15:13:45 Info: imap-login: Internal login failure: user=<neil(a)comms.neologix>, method=PLAIN, rip=192.168.1.100, lip=192.168.1.229, TLS The output from dovecot -n is: lothar# dovecot -n # 1.0.13: /opt/csw/etc/dovecot.conf base_dir: /opt/csw/var/run/dovecot/ log_path: /opt/csw/var/log/dovecot.log ssl_cert_file: /opt/csw/ssl/certs/dovecot-cert.pem ssl_key_file: /opt/csw/ssl/private/dovecot-key-np.pem verbose_ssl: yes login_dir: /opt/csw/var/run/dovecot//login login_executable: /opt/csw/libexec/dovecot/imap-login login_user: vmail first_valid_uid: 900 last_valid_uid: 1900 first_valid_gid: 900 last_valid_gid: 1900 mail_location: maildir:%h/Maildir mail_debug: yes auth default: username_format: %Lu verbose: yes debug: yes debug_passwords: yes passdb: driver: passwd-file args: /opt/csw/etc/vmail/%d/passwd userdb: driver: passwd userdb: driver: passwd-file args: /opt/csw/etc/vmail/%d/passwd socket: type: listen client: path: /opt/csw/var/run/dovecot/auth-client mode: 432 master: path: /opt/csw/var/run/dovecot/auth-master mode: 384 user: vmail group: vmail plugin: sieve: %h/.dovecot.sieve quota: maildir

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[Dovecot] Time moved backwards
by Eugene 13 May '08

13 May '08

Hello, I would like to suggest a change in handling of 'Time moved backwards' problem. Right now dovecot just dies. So, the scenario: 1) Colocation server is shut down for some reason. The internal time drifts. 2) Server is started again. 3) Dovecot starts successfully. 4) In about a minute, NTP daemon feels confident about adjusting the system time. 5) Dovecot sees the changed time and dies. 6) Admin has to notice that, login and restart Dovecot manually. I suggest that Dovecot simply terminate the current connections (causing the client to reconnect) or -- if the time change is really that much of a problem -- to restart itself automatically. Maybe a config option could be introduced. Best wishes Eugene

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[Dovecot] Unknown internal error
by Martin Preen 13 May '08

13 May '08

Hello, I just found this message in our dovecot logfiles: "Disconnected: BUG: Unknown internal error" Should I worry about this ? There are no complaints yet (although it is not limited to one user). It seems to occur with different clients (Apple/MacOS mail, Windows/Thunderbird, Pine). We're running dovecot 1.0.10 on Solaris 10 with mboxes (NFS) and local index storage. There are no such messages before the upgrade (from version 1.0.5). Regards. Martin --------------------------------------------------------------- Martin Preen, Universität Freiburg, Institut für Informatik Georges-Koehler-Allee 52, Raum 00-006, 79110 Freiburg, Germany phone: ++49 761 203-8250 preen(a)informatik.uni-freiburg.de fax: ++49 761 203-8242 www.informatik.uni-freiburg.de

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[Dovecot] Mailbox problem
by Sadiq Walji 13 May '08

13 May '08

Greetings, I am using dovecot as our POP3 and IMAP server and Squirrelmail for the Webmail. Some of our users get the error message below when trying to access the mailbox using Webmail: "ERROR: Could not complete request. Query: SELECT "INBOX" Reason Given: Internal error occurred. Error report written to server log. [2008-05-12 09:08:39] To resolve this issue, I need to open the /var/spool/mail/<username> (mailbox of the user) and delete an empty line that is inserted at the top of the mailbox file. I am running dovecot-0.99.11-8.EL4 on CentOS release 4.6 (Final). Kindly provide suggestions on how to resolve this issue. Thank you, Sadiq

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[Dovecot] how add size (, S=size) and virtual size (, W=vsize) fields to a maildir filename ?
by Marco Giunta 13 May '08

13 May '08

Hi to all, I'm a sys admin in a college, and we're using Dovecot as IMAP/POP3 server and delivery; we're also patch dovecot to add managesieve capability. I've a question: I've read on dovecot's wiki, that is possible improve the performance on maildir files by adding ,S=<size>,W=<vsize> fields on filename. How is possible to do that ? I've search on all the wiki and on the mailing list, but I didn't find nothing about modify the maildir file name. Someone can help me ? Best regards, Marco

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[Dovecot] Access to the root of a shared mailbox
by RIOTTEAU Gwénaël 13 May '08

13 May '08

I have an issue with shares mailboxes Example : I have 2 users A and B. A must have an access to all mail of B So i create a public namespace namespace public { separator = / prefix = Public/ location = maildir:/home/users/B/Maildir } It's OK for the subfolders, but not for the root (B's inbox, the most important !) it's seems to be like http://www.dovecot.org/list/dovecot/2007-October/025965.html it's the only feature that prevents me to migrate from Courier-IMAP !

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[Dovecot] Dovecot - MySQL Virtual User Virtual Domains
by Evaggelos Balaskas 12 May '08

12 May '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 i wrote a mini quick and dirty how to install dovecot from mercurial with mysql support to use virtual users and virtual domains. The tutorial doesnt cover much, but still someone could find some help at this. http://ebalaskas.gr/wk/dovecot/dovecotsqlauth any comments (good or bad) can addressed to my email address Evaggelos Balaskas - http://ebalaskas.gr/wk Unix System Engineer Informatics Engineer Technological Education -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFIKKTqWIK+Pe9twhoRAgPiAJ0drcy9TYkCYyNY+5cHh+H/If1RJQCgt4bX JZs12hgvVyBrkQq3PTtFAy8= =Tafd -----END PGP SIGNATURE-----

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[Dovecot] imapsync
by Lars Stavholm 12 May '08

12 May '08

Hi All, I'm trying out the imapsync migration tool, migrating user mails from cyrus IMAP to Dovecot IMAP. In order to avoid knowing about each of the users password, I use the cyrus admin user in the cyrus end. Is there such a thing as the dovecot admin user, or is that simply the root user? Any input appreciated /Lars

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[Dovecot] imap memory footprint rather large
by martin f krafft 12 May '08

12 May '08

Dear list, I am experimenting with a new mail handling setup and it involves a single IMAP folder with just under 70'000 messages. When OfflineIMAP connects to the server, the imap process starts to eat up a lot of memory: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 15607 madduck 35 19 283m 244m 239m D 16.9 49.3 0:09.96 imap On the contrary, when "online" client, such as Thunderbird connect, memory usage is around 10m, which is entirely acceptable. The way offlineimap reads may is by FETCHing metadata, then APPENDing new local mail, SEARCHing for the UIDs of each uploaded mail, and finally FETCHing new remote mail. Memory use seems to be O(n) in the size of the folder. On the folder with 70k messages, dovecot seems to allocate 280m of memory, which it then fills to about 70% during the metadata FETCH, and then keeps growing while APPEND/SEARCHing the new local messages. The 70k mailbox is just short of 600Mb in size on disk. Dovecot uses 280Mb to serve it. Is it possible that dovecot is reading too much into memory, or over-optimising? Can I somehow tweak this to lower the memory footprint? Cheers, -- martin; (greetings from the heart of the sun.) \____ echo mailto: !#^."<*>"|tr "<*> mailto:" net@madduck "the unexamined life is not worth living" -- platon spamtraps: madduck.bogus(a)madduck.net

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