August 2010 - dovecot

[Dovecot] Write a c program to access a mailbox as a system user using dovecot version 2 includes/libs
by Jonathan Siegle 06 Aug '10

06 Aug '10

Should this be doable with the current design? Is there a good reference to do this? Thanks, Jonathan

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[Dovecot] dovecot-auth process crashed during pam login
by Elmar Rudigier 06 Aug '10

06 Aug '10

Hello! We experienced crashes of the dovecot-auth process during user verification with pam_ssh. After a little debugging I saw that pam_ssh and dovecot both provide a buffer_free() function. During cleanup of pam_ssh the buffer_free() from dovecot was called. The members of the buffer had all "out of bound" addresses. After rename the buffer_free() in dovecot the pam login works fine. Cheer, Elmar

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[Dovecot] Configure Dovecot to move read mails to another folder?
by Steven Weiß 06 Aug '10

06 Aug '10

Hallo, is it possible (with dovecot sieve?) to deliver incoming mails to the default INBOX and then, when I have read the mail with Thunderbird, automatically move it to another folder? I know I could create filters in my mail client. But that has the disadvantage that I would need to create these filters everywhere: on my office PC, at home, webmail, ... Also moving a mail from one folder to another marks the original mail as deleted, at least in Thunderbird. Maybe other clients finally delete the mail. Therefore that would be really cool. Another related problem for me is: how can I automatically move outgoing mails to another folder? I created sieve-rules but it doesn't work - the mails remain in the folder "sent-mail". For example: if address :domain :is "to" "somedomain.de" { fileinto "sent-mail.Somedomain"; stop; } Greetings, Steven

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[Dovecot] Double logging problem
by Nikolaos Milas 06 Aug '10

06 Aug '10

Hi, I have a relatively new installation with LDAP and Postfix, running smoothly on CentOS but it logs dovecot messages both in /var/log/messages and in /var/log/dovecot.log. I have configured it to log in /var/log/dovecot.log (with syslog_facility: local1 and a respective line in syslog.conf, see below) but it also logs in /var/log/messages. As a result, I would expect it to only log into /var/log/dovecot.log. Can someone suggest why this happens and help me stop logging dovecot messages in /var/log/messages ? Could it be because the following directive (in syslog.conf) does not capture dovecot messages to exclude them? *.info;mail.none;authpriv.none;cron.none /var/log/messages Could I use something like (in syslog.conf): *.info;mail.none;authpriv.none;cron.none;dovecot.none /var/log/messages to capture dovecot messages and *exclude* them from /var/log/messages ? I am not sure if syslog understands "dovecot.none". Please explain how this could be done. Here is the configuration (I've changed real domain name with example.com) # dovecot --version 1.2.11 # dovecot -n # 1.2.11: /etc/dovecot.conf # OS: Linux 2.6.18-194.3.1.el5.centos.plus x86_64 CentOS release 5.5 (Final) syslog_facility: local1 ssl_ca_file: /etc/pki/CA/certs/cert-xxx.pem ssl_cert_file: /etc/pki/CA/certs/cert-xxx.pem ssl_key_file: /etc/pki/CA/private/key-xxx.pem login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login mail_max_userip_connections(default): 10 mail_max_userip_connections(imap): 10 mail_max_userip_connections(pop3): 3 mail_location: maildir:~/Maildir/ mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugin_dir(default): /usr/lib64/dovecot/imap mail_plugin_dir(imap): /usr/lib64/dovecot/imap mail_plugin_dir(pop3): /usr/lib64/dovecot/pop3 imap_client_workarounds(default): delay-newmail outlook-idle netscape-eoh imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh lda: postmaster_address: postmaster(a)example.com auth default: mechanisms: plain login username_format: %Lu verbose: yes debug: yes passdb: driver: ldap args: /etc/dovecot-ldap.conf userdb: driver: static args: uid=500 gid=500 home=/home/vmail/%u socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix plugin: quota: maildir:User quota quota_rule: *:storage=307200 quota_warning: storage=75%% /opt/mail.sh 75 %u # grep -v '^ *$#.*$\?$' /etc/dovecot-ldap.conf hosts = ldap.example.com tls = yes base = ou=people, dc=example, dc=com scope = subtree ldap_version = 3 auth_bind = yes pass_attrs = uid=user,userPassword=password auth_bind_userdn = uid=%u,ou=people,dc=example,dc=com pass_filter = (uid=%u) And the content of /etc/syslog.conf # cat /etc/syslog.conf # Log all kernel messages to the console. # Logging much else clutters up the screen. #kern.* /dev/console # Log anything (except mail) of level info or higher. # Don't log private authentication messages! *.info;mail.none;authpriv.none;cron.none /var/log/messages # The authpriv file has restricted access. authpriv.* /var/log/secure # Log all the mail messages in one place. mail.* -/var/log/maillog # Log cron stuff cron.* /var/log/cron # Everybody gets emergency messages *.emerg * # Save news errors of level crit and higher in a special file. uucp,news.crit /var/log/spooler # Save boot messages also to boot.log local7.* /var/log/boot.log # Dovecot messages will be using local1 local1.* /var/log/dovecot.log #local2.* /var/log/php.log local3.* /var/log/sympa.log Thanks, Nick Milas Greece P.S. I sent this message earlier (a few hours ago), but I didn't see it coming in the dovecot list, so I've decided to send it again.

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[Dovecot] Panic: file ioloop-iolist.c: line 25 (ioloop_iolist_add): assertion failed
by Computer Department (Watchtower South Africa Branch) 06 Aug '10

06 Aug '10

Hi, I receive the following message after running "/etc/init.d/dovecot reload": Aug 06 02:00:11 dovecot: Warning: SIGHUP received - reloading configuration Aug 06 02:00:11 dovecot: Panic: file ioloop-iolist.c: line 25 (ioloop_iolist_add): assertion failed: (list->ios[idx] == NULL) I'm running dovecot version 1.2.13, compiled against uclibc on the Alpine Linux distro, version 1.10.6. This problem started to occur since upgrading to dovecot 1.2.12 from dovecot 1.2.11. No configuration has been changed in between these versions. # 1.2.13: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32.16-grsec i686 rootfs log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot-info.log protocols: imap imaps pop3 pop3s ssl_cert_file: /etc/lighttpd/server-bundle.pem ssl_key_file: /etc/lighttpd/server-bundle.pem disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login mail_location: maildir:/var/mail/domains/%d/%n mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(pop3): /usr/lib/dovecot/pop3 lda: postmaster_address: admin(a)windhoek.zaf.wtbts.net mail_plugins: quota auth_socket_path: /var/run/dovecot/auth-master sendmail_path: /usr/sbin/sendmail auth default: verbose: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen master: path: /var/run/dovecot/auth-master mode: 432 user: vmail group: vmail plugin: quota: dict:user::proxy::quotadict dict: quotadict: pgsql:/etc/dovecot/dovecot-dict-quota.conf The init.d script can be found here: http://git.alpinelinux.org/cgit/aports/tree/main/dovecot/dovecot.initd?h =1.10-stable&id=a3087eff06dff4a69b2914cdc1bbe76dce29b448 Any ideas? Thanks for any help you can provide. Duane Hughes

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Re: [Dovecot] AntiSpam Plugin
by Daryl Richards 06 Aug '10

06 Aug '10

On 05/08/10 10:37 AM, Leander S. wrote: > Am 28.07.2010 21:34, schrieb Daryl Richards: >> I've also had this problem in the past. I wrote a wrapper script to >> try to log what is happening. Funny thing is, when run through this >> script it works fine. Without the script it fails. Not sure where to >> look next, I've just kept the script. >> >> #!/usr/local/bin/bash >> >> ( >> id -a >> echo $@ >> /usr/local/bin/sa-learn $@ >> rc=$? >> echo "exit code $rc" >> exit $rc >> ) > /tmp/antispam.out.$$ 2> /tmp/antispam.err.$$ >> >> On 7/28/2010 3:12 PM, Leander S. wrote: >>> >>> >>> >>> >>> >>> On 07/28/2010 07:24 PM Leander S. wrote: >>> >>>> > … >>>> > Jul 28 18:51:40 server imap: antispam: running mailtrain backend >>>> program >>>> > /usr/local/bin/sa-learn >>>> > Jul 28 18:51:40 server imap: antispam: running mailtrain backend >>>> program >>>> > /usr/local/bin/sa-learn >>>> > Jul 28 18:51:41 server imap: antispam: run program failed with exit >>>> code 9 >>>> > > > > "run program failed with exit code 9" --> unfortunately is >>>> nothing >>>> > mentioned in the dovecot antspam man. >>>> > Antispam >>>> manual:http://johannes.sipsolutions.net/files/antispam.html#lbAL >>>> > > > > > > Could anybody give me a hint where to look up this exit >>>> code? Or is >>>> > there a general meaning for exit codes? >>>> > i.e.: 0 means normal ; 5 internal error ; and 9 maybe means syntax >>>> issue >>>> > ... or whatever ?! >>> /usr/local/bin/sa-learn returned exit code 9. So, check the fine >>> spamassassin documentation. >>> >>> ^^ I did - there is nothing mentioned about exit codes at all - except >>> in the spamc manual. But the spamc manual doesn't represent exit code 9. >>> >>> Do you guys maybe have any idea what this could mean? How does your >>> config for antispam looks like - but I doubt there could be anything >>> wrong in mine. >>> >>> ... very weired ... >>> >>> >>> >>> Regards, >>> Leander >>> >>> >>> >>> >>> >>> Regards, >>> Pascal >>> -- The trapper recommends today: f007ba11.1020919(a)localdomain.org >>> >>> > Thanks for the script hint - exactly the same on my side - I also use a > script now - but mine is more simple than yours: > > server [~]# cat /script.sh > #!/usr/local/bin/bash > > /usr/local/bin/sa-learn $1 $2 $3 $4 &> /DoveDamnAntispam.log > exit 0 ; > server [~]# > > > > > Antispam part of dovecot.conf: > > ### Dovecot AntiSpam ### > # mail signature (used with any backend requiring a signature) > #antispam_signature = X-Spam-Status > #antispam_signature_missing = move > > antispam_mail_sendmail = /script.sh > #antispam_mail_sendmail = /usr/local/bin/sa-learn > antispam_mail_sendmail_args = --username=%u;--debug;all > antispam_mail_spam = --spam > antispam_mail_notspam = --ham > antispam_mail_tmpdir = /tmp > antispam_spam = Spam > antispam_unsure = Virus > antispam_trash = Trash > > > Works fine for me now - but it's really weired ... > > Anyway - lots of thx, hey! ;) > > regards I added the extra debugging to show exactly what was happening - what user was calling sa-learn, what the exit code was, etc... But, as I said, it didn't help as it runs perfectly through that script! -- Daryl Richards Isle Technical Services Inc.

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[Dovecot] Cyrus to Dovecot migration (OS X Server): Backup + restore messages, live "standby server" and delayed expunge and…
by Thomas von Eyben 05 Aug '10

05 Aug '10

Hi List, I am very close to migrating from Cyrus to Dovecot (to be more precise from Mac OS X Server 10.5.8 to 10.6.4). The latter is reporting the dovecotd version to be 1.1.20apple0.5. All I have read about dovecot is extremely positive so I am exited to make the switch. BACKUP: BUT I would like to be sure that I can make a sound backup strategy. For Cyrus i used topicdesk's mailbfr (a script that stops the mailservice and then rsync's the mailstore to a backup location incrementing daily and restarting a complete backup weekly). This script is not yet ready for Dovecot, but from what I have read it should be as easy as "just" backing up the mail-data (/var/spool/imap/dovecot/mail in OS X), eg. with rsync. Our current setup is requiring ca. 11 hours for a full (200+ GB) backup (weekly) this is not good for uptime… RESTORE: Restore should be the same (well reverse) "just" restoring the files and making sure the get the correct permissions. What I am not sure about is the (cyrus specific) need for reconstructing the database, as I have read (on this list) it seems that dovecot is designed better and will "automatically" recognised the restored messages without the need to reconstruct any databases or stopping+restarting the service. Is this really true ,-)? NB.: For restores I plan to always restore to a specific subfolder for the user (eg RESTORED MAIL) as opposed to placing the mails within the folder hierachy LIVE BACKUP SERVER I have been told, that dovecot provides clever mechanisms for making it possible to synchronise the data to a "hot-spare" server. Both for being able to provide access to the data during breakdown or planned maintenance, but perhaps also to make backups easier (perhaps not needed?) DELAYED DELETION OF MESSAGES I believe that the feature is called "delayed expunge", a way of not deleting the messages until after an additional delay from the time the user deletes the message. Is this possible in dovecot? DOCUMENTATION Where would the best FAQ/KB for getting to know dovecot better be, perhaps there have even been written good books (I know old fashioned, but I really like the physical hands on a real book provides ;-) It's a lot of questions and I hope for good pointers to where I can find more documentation and good feedback from the list. BR Thomas von Eyben

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[Dovecot] v2.0.rc4 released
by Timo Sirainen 05 Aug '10

05 Aug '10

http://dovecot.org/releases/2.0/rc/dovecot-2.0.rc4.tar.gz http://dovecot.org/releases/2.0/rc/dovecot-2.0.rc4.tar.gz.sig I'm planning to release rc5 maybe this Friday or weekend, and if there are no serious bugs just change the version number to v2.0.0 a day or two later. Largest changes since rc3: + director: Added director_doveadm_port for accepting doveadm TCP connections. + doveadm: Added client/server architecture support for running mail commands. Enable this by setting doveadm_worker_count to non-zero. + mail-log: Added support for mailbox_create event. + imap_capability = +XFOO BAR can be used to add capabilities instead of replacing the whole capability string. + virtual storage: Added support for IDLE notifications. - doveadm mailbox status: Fixed listing non-ASCII mailbox names. - doveadm fetch: Fixed output when fetching message header or body - doveadm director map/add/remove: Fixed handling IP address as parameter. - dsync: A few more fixes

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[Dovecot] "listen=*, ::" broken?
by Peer Heinlein 05 Aug '10

05 Aug '10

Hi, the default: listen = *, :: should work and should open port 143 on IPv4 and IPv6. In my setup it looks broken: root@mail-archiv:/etc/dovecot# doveconf | grep ^listen listen = *, :: root@mail-archiv:/etc/dovecot# /etc/init.d/dovecot restart Restarting mail server: dovecotError: service(imap-login): listen(::, 143) failed: Address already in use Fatal: Failed to start listeners root@mail-archiv:/etc/dovecot# But it's working with "listen = *": root@mail-archiv:/etc/dovecot# doveconf | grep ^listen listen = * root@mail-archiv:/etc/dovecot# /etc/init.d/dovecot restart Restarting mail server: dovecot. root@mail-archiv:/etc/dovecot# Peer Heinlein -- Heinlein Professional Linux Support GmbH Linux: Akademie - Support - Hosting http://www.heinlein-support.de Tel: 030-405051-42 Fax: 030-405051-19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin

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[Dovecot] 2.0...
by Ralf Hildebrandt 05 Aug '10

05 Aug '10

Hi I'm running 1.2.13 with sieve & managesieve; no problems whatsoever, but the patching & compilation process is a PITA. So I thought, why not try out 2.0rc4 for a change. But: I don't find sieve & managesieve mentioned there - what do I need to enable those? -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt(a)charite.de | http://www.charite.de

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