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[Dovecot] Reproducable hang caused by IMAP server
by Matthias Scheler 02 Feb '11

02 Feb '11

Hello, I have problems with Dovecot 2.0.9 (and 2.0.8) under NetBSD/amd64 5.1. "mutt" hangs when I try to quit it after accessing a folder via IMAP. I can reproduce the problem with these steps: 1.) I run "mutt -f =foo" to access folder "foo" via IMAP. The folder contains about 10 messages in my case. 2.) I tag two of the messages and then save them to a *non existent* folder. When "mutt" asks whether the folder should be created I confirm the action. 3.) Finally I exit "mutt" and confirm the question whether the messages marked as deleted (by the save in step 2) should be deleted. 4.) "mutt" now hangs indefinitely. I've attached a packet capture of the above steps to this e-mail. As far as I can tell from the packet capture and debugging "mutt" with "gdb" it waits for the IMAP server to confirm the logout which never happens. I've never seen this problem with Dovecot 1.2.16. Here is the requested debugging information: Output of "dovecot --version": 2.0.9 Output of "doveconf -n": # 2.0.9: /etc/pkg/dovecot/dovecot.conf # OS: NetBSD 5.1_STABLE amd64 auth_mechanisms = cram-md5 digest-md5 plain login listen = *, [::] mail_debug = yes mail_location = mbox:~/Mail:INBOX=/var/mail/%u passdb { args = /etc/pkg/dovecot/passwd driver = passwd-file } pop3_uidl_format = %08Xv%08Xu protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } ssl_cert = </etc/openssl/certs/dovecot.pem ssl_key = </etc/openssl/private/dovecot.pem userdb { driver = passwd } Kind regards -- Matthias Scheler http://zhadum.org.uk/

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[Dovecot] Resource temporarily unavailable
by Len7hir 02 Feb '11

02 Feb '11

On very high traffic in POP3 I have flood of messages in my log: Feb 2 16:32:17 pp4 dovecot: pop3: Error: net_connect_unix(/var/run/dovecot/auth-master) failed: Resource temporarily unavailable What a Terrible Failure (WTF)? Can You help me resolve this problem? I've not found any info about auth-master problem :/ My settings: default_process_limit = 2000 default_client_limit = 4096 service pop3-login { service_count = 0 vsz_limit = 128M process_min_avail = 8 } FD limit in system = 32000 8 cpu, 28GB RAM about 50 login per second Different Error messages I've when set service_count = 1. Feb 2 10:21:29 pp4 dovecot: pop3-login: (5052) Disconnected: Connection queue full (no auth attempts) -- Len7hir

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[Dovecot] STARTTLS problem
by Lucas -LandM- 02 Feb '11

02 Feb '11

Hi, We try to configure dovecot as usual (all our servers have dovecot+vpopmail+qmail or postfix). We set up dovecot with the next outcome: - imap ok - imaps ok - imap STARTTLS NOT OK Debug: root@s13:/home/lucas# gnutls-cli --starttls -p 143 ip Resolving 'ip'... Connecting to 'ip'... - Simple Client Mode: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS AUTH=PLAIN AUTH=LOGIN AUTH=CRAM-MD5] Dovecot ready. *** Starting TLS handshake *** Non fatal error: Resource temporarily unavailable, try again. *** Fatal error: A TLS packet with unexpected length was received. *** Handshake has failed Same result with thunderbird and openssl. Log: Feb 2 20:26:58 s13 dovecot: imap-login: Warning: SSL: where=0x10, ret=1: before/accept initialization [83.61.13.57] Feb 2 20:26:58 s13 dovecot: imap-login: Warning: SSL: where=0x2001, ret=1: before/accept initialization [83.61.13.57] Feb 2 20:26:58 s13 dovecot: imap-login: Warning: SSL: where=0x2002, ret=-1: SSLv2/v3 read client hello A [83.61.13.57] Feb 2 20:26:58 s13 dovecot: imap-login: Warning: SSL: where=0x2001, ret=1: SSLv3 read client hello A [83.61.13.57] Feb 2 20:26:58 s13 dovecot: imap-login: Warning: SSL: where=0x2001, ret=1: SSLv3 write server hello A [83.61.13.57] Feb 2 20:26:58 s13 dovecot: imap-login: Warning: SSL: where=0x2001, ret=1: SSLv3 write certificate A [83.61.13.57] Feb 2 20:26:58 s13 dovecot: imap-login: Warning: SSL: where=0x2001, ret=1: SSLv3 write server done A [83.61.13.57] Feb 2 20:26:58 s13 dovecot: imap-login: Warning: SSL: where=0x2001, ret=1: SSLv3 flush data [83.61.13.57] Feb 2 20:26:58 s13 dovecot: imap-login: Warning: SSL: where=0x2002, ret=-1: SSLv3 read client certificate A [83.61.13.57] Feb 2 20:26:58 s13 dovecot: imap-login: Warning: SSL: where=0x2002, ret=-1: SSLv3 read client certificate A [83.61.13.57] Feb 2 20:27:34 s13 dovecot: imap-login: Warning: SSL failed: where=0x2002: SSLv3 read client certificate A [83.61.13.57] Feb 2 20:27:34 s13 dovecot: imap-login: Disconnected (no auth attempts): rip=83.61.13.57, lip=109.200.5.221, TLS handshaking: Disconnected My config: # 2.0.9: /opt/dovecot/etc/dovecot/dovecot.conf # OS: Linux 2.6.32-27-server x86_64 Ubuntu 8.04 auth_mechanisms = plain login cram-md5 default_login_user = vpopmail disable_plaintext_auth = no first_valid_gid = 89 first_valid_uid = 89 last_valid_gid = 89 last_valid_uid = 89 listen = ip mail_debug = yes mail_gid = 89 mail_uid = 89 passdb { driver = vpopmail } plugin { quota = maildir:User quota quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u setting_name = quota, trash } protocols = imap pop3 service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } } service imap { process_limit = 1024 } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } service pop3 { process_limit = 1024 } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = vpopmail } verbose_ssl = yes protocol imap { imap_client_workarounds = delay-newmail tb-extra-mailbox-sep } protocol pop3 { mail_max_userip_connections = 3 pop3_client_workarounds = outlook-no-nuls ,oe-ns-eoh pop3_uidl_format = %08Xu%08Xv } Any clue? Thank you in advanced, Lucas

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[Dovecot] Signal 11 on deliver
by Matt 02 Feb '11

02 Feb '11

I just installed Postfix, MySQL, and Dovecot. Everything is working great (IMAP, POP, SMTP) except that I can't get incoming mail to deliver properly. Incoming mail logs the following: Feb 2 13:23:52 mail postfix/qmgr[2187]: CE0D41F0263: from=<mhoppes@[redacted]>, size=650, nrcpt=1 (queue active) Feb 2 13:23:52 mail postfix/pipe[3594]: CE0D41F0263: to=<mhoppes@[redacted]>, relay=dovecot, delay=0.32, delays=0.3/0/0/0.01, dsn=5.3.0, status=bounced (Command died with signal 11: "/usr/libexec/dovecot/deliver") Running /usr/libexec/dovecot/deliver -d mhoppes@[redacted] results in an e-mail being delivered to the recipient. Any thoughts on what my issue is?

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[Dovecot] Can´t move folders in Outlook
by Mult´Moldes - Informatica 02 Feb '11

02 Feb '11

Hi, this is my first time in a mailing list, so I don´t know if I´m doing it right. My problem is that I cannot move a folder into another one, I can create them, move messages, etc, but I can´t move a folder, no matter what folder. It works fine With Thunderbird, but in Outlook Express or WLive Mail2009 it just doesn´t go! Must be something wrong with my .conf. I hope someone can help me please. dovecot --version 1.0.15 dovecot -n # 1.0.15: /etc/dovecot/dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap listen: 192.168.10.2:210 disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login mail_privileged_group: mail mail_location: maildir:/var/mail/%u auth default: passdb: driver: pam userdb: driver: passwd

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[Dovecot] override not working
by Paul A 02 Feb '11

02 Feb '11

Hi, I'm using dovecot 2.x and I'm using override so that only certain domains are allowed to use ACLs, however it does seem to be working even though I see the mail_plugins override in the logs. In the config file I have protocol imap { mail_plugins = quota imap_quota trash expire autocreate } Using the following password/user queries: password_query = SELECT username as user, password, if('%d'='virttest2.xxx.net', 'acl imap_acl',null) as mail_plugins, concat('/var/vmail/%d/', maildir) as userdb_home, concat('maildir:/var/vmail/%d/', maildir) as userdb_mail, 101 as userdb_uid, 502 as userdb_gid, CONCAT('*:bytes=', CAST(quota AS CHAR)) AS quota_rule FROM mailbox WHERE username = '%u' user_query = SELECT maildir, if('%d'='virttest2.xxx.net', 'acl imap_acl',null) as mail_plugins, 101 AS uid, 502 AS gid, CONCAT('*:bytes=', CAST(quota AS CHAR)) AS quota_rule FROM mailbox WHERE username = '%u' AND active = '1' Now in n the log I do see the mail_plugins override but for some reason I get an IMAP error when trying to share folders. out: OK 1 user=user20(a)virttest2.xxx.net mail_plugins=acl imap_acl quota_rule=*:bytes=512000000 ERROR: IMAP server does not support the ACL capability, sorry.

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[Dovecot] UIDPLUS in the wiki
by Peter Mogensen 02 Feb '11

02 Feb '11

Hi, Isn't the stuff in the wiki about UIDPLUS being disabled because of maildir outdated? http://wiki.dovecot.org/FeatUIDPLUS http://wiki2.dovecot.org/FeatUIDPLUS /Peter

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[Dovecot] Logging on syslog and selected dovecot files at the sametime
by Antonio Perez-Aranda 02 Feb '11

02 Feb '11

Is it possible to send logs to syslog and files set by log_path and log_info_path on config? Just two logs at the same time (not realtime). -- Antonio Pérez-Aranda Alcaide aperezaranda(a)yaco.es Yaco Sistemas S.L. http://www.yaco.es/ C/ Rioja 5, 41001 Sevilla Teléfono +34 954 50 00 57 Fax +34 954 50 09 29

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[Dovecot] automated mailbox trimming?
by Monique Y. Mudama 02 Feb '11

02 Feb '11

Hello all, If this is answered in the wiki, I apologize. Please point me to it and I'll be on my way ... This may be more of a MailDir-generic question, except that as I understand it there's some wiggle room in the naming of the message files. I've just switched from an mbox-based mail system to Dovecot with MailDir. With mbox, I used logrotate to keep some of my mailboxes (spam, sent, stuff like that) down to only the most recent messages. What's the best way to go about mailbox trimming with dovecot's implementation of maildir? I was thinking of writing a script to simply move or delete old files, but would I mess up dovecot's expectations for directory/file structure that way? My mail directories are in my user's home directory. I'm fine with writing a script or application (time permitting, of course), but before I do so, is there already a solution out there? In case it's relevant: $ dovecot --version 1.2.15 $ dovecot -n # 1.2.15: /etc/dovecot/dovecot.conf # OS: Linux 2.6.37 x86_64 Debian 6.0 log_timestamp: %Y-%m-%d %H:%M:%S ssl: required login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login mail_privileged_group: mail mbox_write_locks: fcntl dotlock auth default: passdb: driver: passwd-file args: /etc/dovecot/passwords userdb: driver: passwd userdb: driver: passwd-file args: /etc/dovecot/passwords

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[Dovecot] Plugin delete-to-trash on Dovecot 2.0
by Antonio Perez-Aranda 01 Feb '11

01 Feb '11

There are some body using delete-to-trash on any version of Dovecot 2.0? -- Antonio Pérez-Aranda Alcaide aperezaranda(a)yaco.es Yaco Sistemas S.L. http://www.yaco.es/ C/ Rioja 5, 41001 Sevilla Teléfono +34 954 50 00 57 Fax +34 954 50 09 29

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