October 2008 - dovecot

[Dovecot] dovecot delivery log
by jalal 22 Oct '08

22 Oct '08

Trying to debug a delivery problem recently (with Postfix) and I realized that Dovecot wasn't logging any of the delivery information. I'm using Postfix to recieve mail, which is passing it on to Dovecot's deliver to actually deliver the emails into the mail boxes. In dovecot.conf, I have: protocol lda { log_path = /var/tmp/dovecot-deliver.log } [root]# dir /var/tmp/ total 2 drwxrwxrwt 2 root root 1024 Oct 22 12:30 . drwxr-xr-x 24 root root 1024 Aug 5 08:03 .. -rw------- 1 vmail vmail 0 Oct 22 12:11 dovecot-deliver.log The log file gets created OK, but then stays at zero size. Using: Postfix 2.3.3 Dovecot 1.1.4 (and previously 1.0.9) Any clues as to how I can have a delivery log?

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[Dovecot] displaying IMAP folders that are in ~/mail/ at same level as inbox
by David London 22 Oct '08

22 Oct '08

Hi, We are moving our current IMAP based system to a new one with dovecot All I can get about the current IMAP (imapd) system is: IMAP4rev1 v12.264 dovecot version is: 1.0.rc15 In the existing system I can see IMAP folders that are in ~/mail/ with many mail clients (e.g. Thunderbird, Outlook, Seamonkey and horde). These folders are presented in the client software as being at the same level as the inbox - i.e. not inside the folder "mail" On the new system, horde webmail shows the other folders in ~/mail/ as being at the same level as the inbox. But ... all the other mail clients above now show a folder (directory) called mail with the imap folders inside. Is there some way to set this up so these other mail clients see the imap folders in ~/mail/ as being at the same level as the inbox as we have on the old server? Thanks, David _________________________________________________________________

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[Dovecot] Dovecot+PostfixAdmin+PostgreSQL on FreeBSD 7
by Erdenebat Guntomor 22 Oct '08

22 Oct '08

Hi dear All, Currently I'm configuring Dovecot+PostfixAdmin+PostgreSQL on FreeBSD 7 Stable and using Dovecot v1.1.3. I hope I've configured everything. But when I run /usr/local/etc/rc.d/dovecot start then dovecot doesn't seems to running. /var/log/maillog is only showing following. Oct 22 13:37:10 mail dovecot: Dovecot v1.1.3 starting up Oct 22 13:37:10 mail dovecot: auth(default): pgsql: Connected to postfix Oct 22 13:37:10 mail dovecot: auth-worker(default): pgsql: Connected to postfix Here is my current dovecot configuration. Please someone help me. What did I do wrong and what is the problem is? Thank you. mail# dovecot -n # 1.1.3: /usr/local/etc/dovecot.conf log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot_info.log log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap pop3 listen(default): x.x.x.x:143 listen(imap): x.x.x.x:143 listen(pop3): x.x.x.x:110 ssl_disable: yes disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login login_greeting_capability(default): yes login_greeting_capability(imap): yes login_greeting_capability(pop3): no verbose_proctitle: yes first_valid_uid: 1983 first_valid_gid: 1983 mail_privileged_group: vmail mail_location: maildir:/var/vmail/%d/%n maildir_copy_preserve_filename: yes mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): pop3_enable_last(default): no pop3_enable_last(imap): no pop3_enable_last(pop3): yes pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login username_format: %Lu passdb: driver: sql args: /usr/local/etc/dovecot-sql.conf userdb: driver: sql args: /usr/local/etc/dovecot-sql.conf socket: type: listen client: path: /var/run/dovecot/auth-client mode: 432 master: path: /var/run/dovecot/auth-master mode: 384

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[Dovecot] Permission issues with subscriptions
by Eric A. Bonney 22 Oct '08

22 Oct '08

I am having some permission issues with my setup and I can't see where to make the change in the configuration files. My users can not create folders at all from their email clients nor from the web interface. I have noticed that each time I try to create a folder the subscriptions files permissions are set to 000. If I go back and reset the permissions to rw-r--r-- then everything is fine until I try to add another folder. running dovecot -n produces the following: # 1.0.10: /etc/dovecot/dovecot.conf listen: [::] login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login verbose_proctitle: yes first_valid_uid: 1000 default_mail_env: maildir:/mnt/hd4/MailBoxes/%d/%n mail_location: maildir:/mnt/hd4/MailBoxes/%d/%n umask: 511 auth default: user: nobody passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch I am guessing that Dovecot is the actual process that is creating the folders on the IMAP server, so where inside the configuration file do I set the permissions for the new folders along with the user and groups? Thanks, -Eric

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[Dovecot] Proxying pop3 sessions into an imap one.
by Diego Liziero 22 Oct '08

22 Oct '08

I know it seems at least unusual. But I would like to know if someone knows a software that can proxy multiple pop3 and imap connections to the same account and use only imap connections to the real server. I need it because I've to deal with two pieces of software that are out of my control: - 1 - A certified mail provider that states something that I would like to know if it's really true, or if it's worth keeping like a funny signature: "multiple imap sessions are possible. When an imap session is active, no pop3 connections are possible on the same account; when no imap connection is active, only one pop3 connection at a time is possible on the same account. This is a limitation of the pop3 protocol." - 2 - A software written to deal with certified mails that supports only pop3 used by many people on the same account, (and the same account is used also by multiple imap mail readers). Regards, Diego.

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[Dovecot] Too many open files
by Antonio Casado Rodríguez 22 Oct '08

22 Oct '08

Hi, other error in "open files": dovecot: Oct 20 10:52:36 Fatal: execv(/usr/local/sbin/post-login-imap-dovecot) failed: Too many open files dovecot: Oct 20 10:52:36 Error: child 1038 (imap) returned error 84 (exec() failed) dovecot: Oct 20 10:55:51 Fatal: execv(/usr/local/sbin/post-login-imap-dovecot) failed: Too many open files dovecot: Oct 20 10:55:51 Error: child 4853 (imap) returned error 84 (exec() failed) dovecot: Oct 20 10:55:53 Fatal: execv(/usr/local/sbin/post-login-imap-dovecot) failed: Too many open files dovecot: Oct 20 10:55:53 Error: child 4898 (imap) returned error 84 (exec() failed) dovecot: Oct 20 10:55:54 Fatal: execv(/usr/local/sbin/post-login-imap-dovecot) failed: Too many open files dovecot: Oct 20 10:55:54 Error: child 4906 (imap) returned error 84 (exec() failed) # ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 81919 max locked memory (kbytes, -l) 32 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 81919 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited We work in "High-performance mode" with login_max_processes_count = 256 Our script "post-login-imap-dovecot" is: #!/bin/sh touch ~/.last_login exec /usr/libexec/dovecot/imap Now, we have this: # lsof -p `cat /var/run/dovecot/master.pid` | wc -l 1018 ¿Any idea? Thanks a lot. Bye.

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[Dovecot] ACL plugin: Is CVE-2008-4578 going to be fixed in 1.0 branch?
by Michal Hlavinka 21 Oct '08

21 Oct '08

Hi! I would like to know if there is a plan to fix CVE-2008-4578 bug (ACL vs. "parent/child/child" mailboxes) in 1.0 branch? I've tried to backport patch from 1.1.4 but with no success. Thanks Michal

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[Dovecot] quota-warning.sh mail from
by Proskurin Kirill 21 Oct '08

21 Oct '08

Hello all How Dovecot 1.1.3 quota script understand to who send a mail? In try to do this: In conf: quota_warning = storage=80%% /usr/local/bin/quota-warning.sh 80 %u@%d In logs: IQuota warning: bytes=168611020 (80%) messages=0 (0%) command=/usr/local/bin/quota-warning.sh 80 dump-capability@ *what is dump-capability@ ? OS related user?...* #cat quota-warning.sh #!/bin/sh PERCENT=$1 TO=$2 echo "Your mailbox is $PERCENT% full. If it overfill - you will can not get new email. Please clean up your mailbox. -- Mail Administator" | /usr/bin/mail -s "Email mailbox is $PERCENT% full" $TO -f postmaster(a)domain.off exit 0 --- Im thinking in wrong way? -- Best regards, Proskurin Kirill

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[Dovecot] 1.2: Bug in listing of shared mailboxes with dot in user id
by Sascha Wilde 21 Oct '08

21 Oct '08

In dovecot 1.2 I can create a shared name space like this: namespace shared { separator = / prefix = users/%%u/ location = Maildir:/PATH/TO/spool/%%u/maildir:INDEX=/PATH/TO/spool/%u/maildir/shared_idx subscriptions = no } now, when I subscribe to a shared mailbox of another user with an dot in the users id, like: users/2(a)example.com/INBOX/foo and I list my subscribed mailboxes I get: l001 lsub "" "*" * LSUB () "/" "users/2@example/com/INBOX/foo" as you can see the dot in the user-id got normalized to the hierarchy seperator `/' -- which of cause is wrong. ;-) cheers sascha -- Sascha Wilde OpenPGP key: 4BB86568 http://www.intevation.de/~wilde/ http://www.intevation.de/ Intevation GmbH, Neuer Graben 17, 49074 Osnabrück; AG Osnabrück, HR B 18998 Geschäftsführer: Frank Koormann, Bernhard Reiter, Dr. Jan-Oliver Wagner

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[Dovecot] Reporting NFS quotas via IMAP
by Edgar Fuß 21 Oct '08

21 Oct '08

I'm confident that the question has been asked before, but I can't remember the answer. I have -- dovecot 1.1.2 -- Mail storage (maildir format) on NFS -- Quotas on that file system -- A working rquotad -- mail_plugins = quota imap_quota in the protocol imap section -- quota=fs in the plugin section I get (using Apple Mail as a client) -- Notification that the account supports quotas -- No information about the size of the quota nor the usage I probably do something stupidly wrong. The WIKI tells me that fs quota support RPC (i.e., rquotad), so I'd expect my client to report the quota to me. Using quota(1) on the mail server works as expected.

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