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[Dovecot] For the record: Postfix+Spamassassin+ClamAV+Dovecot
by James Butler 01 Jun '09

01 Jun '09

Postfix 2.5.5 SpamAssassin 3.2.5 (under Perl 5.10.0) ClamAV 0.95.1 Dovecot 1.2.rc2 works fine on Fedora 10. Installed Dovecot and ClamAV from source and everything else using yum. I'm using the ClamAV plugin for Spamassassin: http://wiki.apache.org/spamassassin/ClamAVPlugin I'm calling Spamassassin with: /etc/postfix/main.cf: mailbox_command = /usr/bin/spamc -f -e /usr/local/libexec/dovecot/deliver Postfix hands off to Spamassassin, which processes ALL mail (not just attachments) through the ClamAV plugin before parsing for spam, and then hands the whole mess off to Dovecot for 'deliver' to handle. How simple is that? Since ClamAV scanns all mail, it might be too processor-intensive for really large mail systems, but it is working great for our 120+ user system with lots of spam coming in. If you're using Procmail or some other preprocessor that can hand off to a pipe, then you could skip the plugin and pipe messages over a certain size (i.e. >1024) to clamd, instead. Enjoy! James

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[Dovecot] uid fetch error with revision 9112:9d634c93d28a
by Jonathan Siegle 01 Jun '09

01 Jun '09

This command fails: 2 uid fetch somevaliduid (BODYSTRUCTURE BODY.PEEK[]) 2 BAD Error in IMAP command UID: Unknown command BODYSTRUCTURE Thanks, Jonathan

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[Dovecot] Namespace delimiter...
by Lenthir 01 Jun '09

01 Jun '09

As RFC3501 (IMAP) say: 'A NIL hierarchy delimiter means that no hierarchy exists; the name is a "flat" name.' How to change delimiter to NIL? We have flat namespaces in our storage. Now I hardcoded this and everything is working, but maybe it is another possibility... -- Konrad

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[Dovecot] namespace problem with dovecot 2.0
by reg9009 01 Jun '09

01 Jun '09

Hi all, I've got some namespace problems with dovecot 2.0 again. If I start dovecot 2.0 with same settings of namespace and maildir layout as dovecot 1.2, I don't see my folders above the Inbox. I see them as "INBOX/xxx" in the same root level as my INBOX. If I try to subscribe to the folders, I see them as "INBOX^xxx" (and cannot subscribe). My namespace settings: namespace private { separator = / prefix = "INBOX/" inbox = yes #hidden = yes list = yes subscriptions = yes } I tried nearly every separator/combination, but it won't work. Any ideas (to get it work like dovecot 1.2)? I've got no shared folders/namespaces, etc. Layout is plain Maildir. Regards, Sebastian

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[Dovecot] Connection queue full on dovecot 1.1.14 and 1.1.15
by Sven Eulberg 01 Jun '09

01 Jun '09

Hello, sometimes we get the following errors on out dovecot proxies: dovecot: May 27 20:06:10 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:06:10 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:06:10 Info: imap-login: Disconnected: Connection queue full (auth failed, 1 attempts): user=<USER>, method=PLAIN, REMOTE=<IP> LOCAL=<IP> dovecot: May 27 20:06:10 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:06:10 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:06:10 Info: imap-login: Disconnected: Connection queue full (auth failed, 1 attempts): user=<USER>, method=PLAIN, REMOTE=<IP> LOCAL=<IP> dovecot: May 27 20:06:10 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:06:10 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS dovecot: May 27 20:06:11 Info: imap-login: Disconnected: Connection queue full (auth failed, 1 attempts): user=<USER>, method=PLAIN, REMOTE=<IP> LOCAL=<IP> TLS dovecot: May 27 20:06:12 Info: imap-login: Disconnected: Connection queue full (auth failed, 1 attempts): user=<USER>, method=PLAIN, REMOTE=<IP> LOCAL=<IP> TLS dovecot: May 27 20:06:15 Info: imap-login: Disconnected: Connection queue full (auth failed, 1 attempts): user=<USER>, method=PLAIN, REMOTE=<IP> LOCAL=<IP> dovecot: May 27 20:09:36 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS dovecot: May 27 20:09:36 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> dovecot: May 27 20:09:36 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:09:36 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:09:36 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:11:18 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS dovecot: May 27 20:11:18 Info: imap-login: Disconnected: Connection queue full (auth failed, 1 attempts): user=<USER>, method=PLAIN, REMOTE=<IP> LOCAL=<IP> TLS dovecot: May 27 20:39:22 Info: imap-login: Disconnected: Connection queue full (no auth attempts): REMOTE=<IP> LOCAL=<IP> TLS handshaking dovecot: May 27 20:39:22 Info: imap-login: Disconnected: Connection queue full (auth failed, 1 attempts): user=<USER>, method=PLAIN, REMOTE=<IP> LOCAL=<IP> TLS dovecot: May 27 20:39:23 Info: imap-login: Disconnected: Connection queue full (auth failed, 1 attempts): user=<USER>, method=PLAIN, REMOTE=<IP> LOCAL=<IP> Our config: ./dovecot -n # 1.1.15: /usr/local/dovecot-1.1.15/etc/dovecot.conf # OS: Linux 2.6.18-6-686 i686 Debian 4.0 base_dir: /usr/local/dovecot/var/run/dovecot/ log_path: /var/log/dovecot-1.1.log protocols: pop3 pop3s imap imaps ssl_ca_file: /usr/local/dovecot/etc/ssl/de.TR_CRT ssl_cert_file: /usr/local/dovecot/etc/ssl/de.CRT ssl_key_file: /usr/local/dovecot/etc/ssl/de.PKEY disable_plaintext_auth: no login_dir: /usr/local/dovecot/var/run/dovecot/login login_executable(default): /usr/local/dovecot-1.1.15/libexec/dovecot/ imap-login login_executable(imap): /usr/local/dovecot-1.1.15/libexec/dovecot/imap- login login_executable(pop3): /usr/local/dovecot-1.1.15/libexec/dovecot/pop3- login login_log_format_elements: user=<%u> method=%m REMOTE=%r LOCAL=%l %c login_process_per_connection: no login_greeting_capability(default): yes login_greeting_capability(imap): yes login_greeting_capability(pop3): no login_processes_count: 10 login_max_processes_count: 256 verbose_proctitle: yes mail_location: maildir:/home/email/%u/Maildir mailbox_idle_check_interval: 60 mmap_disable: yes fsync_disable: yes mail_executable(default): /usr/local/dovecot-1.1.15/libexec/dovecot/imap mail_executable(imap): /usr/local/dovecot-1.1.15/libexec/dovecot/imap mail_executable(pop3): /usr/local/dovecot-1.1.15/libexec/dovecot/pop3 mail_process_size: 512 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugin_dir(default): /usr/local/dovecot-1.1.15/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/dovecot-1.1.15/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/dovecot-1.1.15/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail outlook-idle netscape- eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): pop3_lock_session(default): no pop3_lock_session(imap): no pop3_lock_session(pop3): yes pop3_uidl_format(default): %08Xu%08Xv pop3_uidl_format(imap): %08Xu%08Xv pop3_uidl_format(pop3): %v.%u pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: plain login cache_size: 1024 cache_ttl: 28800 failure_delay: 3 passdb: driver: sql args: /usr/local/dovecot/etc/dovecot-mysql.conf It seems to me the error occurs more often after increasing login_processes_count. This errors exists with version 1.1.14 and 1.1.15 and I guess also in earlier versions. Thanks in advance! Best regards, Sven

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[Dovecot] Feature Missing OUTBOX Folder
by Frank Doege 01 Jun '09

01 Jun '09

Hi Dovecot People, i have switched my system from courier-imap to dovecot and iam quite happy with it, the performance is well and i had nearly no problems. One little feature iam missing is in Courier i had a folder called "Outbox" there i could paste mails which i want to sent out. In some networks its not always available to sent mails via port 21, i know i could just set up my email server to another port but it was a nice feature. Is this a big afford or is it just alittle hack ? could it done via a little plugin ? Thanks Timo & all others for the great work ! Frank

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[Dovecot] imap cann't read the mail that foxmail send
by wallace0615 01 Jun '09

01 Jun '09

Hi everyone: I use dovecot only as the imap server, For smtp and pop3, I use apache james. The dovecot version: 1.1.14 And the configuration is : protocols: imap ssl_disable: yes login_dir: /var/run/dovecot/login login_executable: /usr/libexec/dovecot/imap-login mail_location: mbox:/usr/local/edupass/mail/repo/%u:INBOX=/usr/local/edupass/mail/%u auth default: passdb: driver: sql args: /etc/dovecot-sql.conf userdb: driver: sql args: /etc/dovecot-sql.conf I have no porblems to login. When I use "telent host 25" to send a email, dovecot read it no problems. But when I use outlook and foxmail to send a email, dovecot cann't read the email data. I compared the data that using the two way to send, and found the reason: use outlook and foxmail: at the beginning of the eamil data is "From zxjteacher_SP_LZU <zxjteacher_SP_LZU@myserver>"; and if I telnet host 25 to send the mail: at the beginning of the eamil data is "From <zxjteacher_SP_LZU@myserver>", so I delete "zxjteacher_SP_LZU", dovecot read it out. "zxjteacher_SP_LZU" is because that outlook and foxmail need an account name to represent the eamil address. So, anyone ever confront with this situation? Any helps appreciate. Thx.

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[Dovecot] Expire Plug-in stopped
by Matt Rude 01 Jun '09

01 Jun '09

Good evening, While working with Dovecot 1.2rc4 on Fedora 10, I have been trying to get the Expire plug-in to auto delete messages for us. When I run the plug-in with the test flag, I receive the following message: /usr/local/sbin/dovecot --exec-mail ext /usr/local/libexec/dovecot/expire-tool --test Info: amy(a)example.com/Trash: stop, expire time in future: 1242953758 All messages were deleted before the expire plug-in was added. I understand that dovecot will only expire messages after they have been in the trash or junk longer then the time in dovecot.conf. So I have let this fail since Monday, but continue to receive the same error. A quick grep for expire from my Dovecot logs doesn't show any output. Also, when I look up this error on google, I see other peaple who's output shows a real date (not 1242953758), how do I know when this date is? Thanks -Matt # 1.2.rc4: /usr/local/etc/dovecot.conf # OS: Linux 2.6.27.21-170.2.56.fc10.i686 i686 Fedora release 10 (Cambridge) ext3 listen: *:143 ssl_listen: *:993 ssl_cert_file: /etc/postfix/SSL/mail.mattrude.com.cert ssl_key_file: /etc/postfix/SSL/mail.mattrude.com.key login_dir: /usr/local/var/run/dovecot/login login_executable: /usr/local/libexec/dovecot/imap-login login_user: postfix mail_location: maildir:/var/spool/virtualmailboxes/%d/%u/:INDEX=/var/spool/virtualmailboxes/.Index/%d/%u/ mail_plugins: autocreate expire quota imap_quota zlib trash auth default: mechanisms: plain login cram-md5 cache_size: 128 cache_ttl: 600 passdb: driver: sql args: /etc/dovecot-mysql.conf userdb: driver: sql args: /etc/dovecot-mysql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: virtualmail group: virtualmail plugin: autocreate: Drafts autocreate2: Sent autocreate3: Trash autocreate4: Junk autocreate5: Junk.IsSpam autocreate6: Junk.IsNotSpam autocreate7: Save autosubscribe: Drafts autosubscribe2: Sent autosubscribe3: Trash autosubscribe4: Junk autosubscribe5: Junk.IsSpam autosubscribe6: Junk.IsNotSpam autosubscribe7: Save auth_socket_path: /var/run/dovecot/auth-master expire: Trash 1 Junk 3 expire_dict: proxy::expire quota: maildir:User quota quota_rule: *:storage=10M quota_rule2: Trash:storage=10%% quota_rule3: Junk:storage=20%% sieve: /var/spool/virtualmailboxes/%d/%u/dovecot.sieve sieve_storage: = /var/spool/virtualmailboxes/%d/%u/ trash: /etc/dovecot-trash.conf dict: expire: db:/var/spool/imap/expire.db

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[Dovecot] Assertion failure in maildir-mail.c for gzipped maildir files in 1.1.15
by David S. Madole 01 Jun '09

01 Jun '09

I attempted an upgrade from 1.1.7 to 1.1.15 and encountered an apparent regression in handling gzipped maildir files. I have tried to narrow down the conditions under which it happens and reproduce it with as simple a case as possible. The actual mail application that exposed this problem is Squirrelmail. Starting off with the index files removed from the "Folder" maildir directory: * OK Dovecot ready. 1 login x y 1 OK Logged in. 2 select Folder * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 13 EXISTS * 0 RECENT * OK [UIDVALIDITY 1220278111] UIDs valid * OK [UIDNEXT 14] Predicted next UID 2 OK [READ-WRITE] Select completed. 3 UID FETCH 3 (RFC822.SIZE INTERNALDATE) * 3 FETCH (UID 3 RFC822.SIZE 1085 INTERNALDATE "04-Jan-2004 09:23:45 -0500") 3 OK Fetch completed. 4 UID FETCH 4 (RFC822.SIZE INTERNALDATE) Connection closed by foreign host. The fetch of message 3, which is not gzipped succeeds, but the fetch of message 4, which is gzipped, fails with the following assertion in the log: Panic: imap: user=x, Status: file maildir-mail.c: line 85 (maildir_mail_stat): assertion failed: (fd != -1) Repeating, but first fetching only INTERNALDATE from the gzipped message succeeds, and once that value is cached in the index files, the same query that causes the failure before will now succeed, as it doesn't need to read the gzipped file any more to get INTERNALDATE: * OK Dovecot ready. 1 login x y 1 OK Logged in. 2 select Folder * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 13 EXISTS * 0 RECENT * OK [UIDVALIDITY 1220278111] UIDs valid * OK [UIDNEXT 14] Predicted next UID 2 OK [READ-WRITE] Select completed. 3 UID FETCH 4 (INTERNALDATE) * 4 FETCH (UID 4 INTERNALDATE "02-Dec-2003 10:39:18 -0500") 3 OK Fetch completed. 4 UID FETCH 4 (RFC822.SIZE INTERNALDATE) * 4 FETCH (UID 4 RFC822.SIZE 6035 INTERNALDATE "02-Dec-2003 10:39:18 -0500") 4 OK Fetch completed. 5 logout * BYE Logging out 5 OK Logout completed. Connection closed by foreign host. Now that the value is cached, the same previously failing query will continue to execute fine, as long as the indexes remain in place: * OK Dovecot ready. 1 login x y 1 OK Logged in. 2 select Folder * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 13 EXISTS * 0 RECENT * OK [UIDVALIDITY 1220278111] UIDs valid * OK [UIDNEXT 14] Predicted next UID 2 OK [READ-WRITE] Select completed. 3 UID FETCH 4 (RFC822.SIZE INTERNALDATE) * 4 FETCH (UID 4 RFC822.SIZE 6035 INTERNALDATE "02-Dec-2003 10:39:18 -0500") 3 OK Fetch completed. 4 logout * BYE Logging out 4 OK Logout completed. Connection closed by foreign host. Removing the indexes again, and this time first fetching just RFC822.SIZE first: * OK Dovecot ready. 1 login x y 1 OK Logged in. 2 select Folder * FLAGS (\Answered \Flagged \Deleted \Seen \Draft) * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags permitted. * 13 EXISTS * 0 RECENT * OK [UIDVALIDITY 1220278111] UIDs valid * OK [UIDNEXT 14] Predicted next UID 2 OK [READ-WRITE] Select completed. 3 UID FETCH 4 (RFC822.SIZE) * 4 FETCH (UID 4 RFC822.SIZE 6035) 3 OK Fetch completed. 4 UID FETCH 4 (RFC822.SIZE INTERNALDATE) Connection closed by foreign host. In this case, the assertion fails again. Fetching RFC822.SIZE alone does not populate the indexes in a way that then allows RFC822.SIZE and INTERNALDATE to be fetched, as fetching INTERNALDATE alone does. It's all confusing to me, hopefully this make some sense to others. Let me know if there is other testing I can help with. I'm running on Slackware 12.1 and have reproduced the same issue with both kernel 2.6.24.4 and 2.6.27.7. The filesystem is XFS. The content of the gzipped message does not seem to matter. David

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Re: [Dovecot] Missing IMAP folders after Server reboot
by punit_j 31 May '09

31 May '09

Did you try looking for the folders by connecting to IMAP using command line. telnet servername 143 a1 login username pass a2 list "" * Check if you could see anything.

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