February 2011 - dovecot

[Dovecot] Improving lmtp performance
by Joseba Torre 04 Feb '11

04 Feb '11

Hi, yesterday I migrated and old version with sendmail + courier to a virtual machine (vmware) with postfix and dovecot 2.0.9. Everything worked fine, but with a more or less default setup for both dovecot and postfix, lmtp performance was pretty bad: a message was written to an inbox every 2 or 3 seconds. With that rate and a 5000+ and growing mail queue mail delivery was really slow. After searching both the wiki and this list I didn't find anything related to this. I tried a couple … [View More]

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[Dovecot] disabling outgoing mail ?
by Per Jessen 03 Feb '11

03 Feb '11

We're using roundcube as a method of access to a read-only email archive served via imap/dovecot. I was thinking of disabling outgoing mails by fiddling with the roundcube code, but thought it might be possible to disable the outgoing functionality from dovecot? /Per Jessen, Zürich

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[Dovecot] Quota ignore issue
by Tim Traver 03 Feb '11

03 Feb '11

Hi Timo, ok, in my dovecot setup, I have a setting to ignore messages in the Spam folder (I will put my dovecot -n at the end of the message), and a strange thing appears to be happening. If I do a quota recalc on an account, It creates the maildirsize file correctly, without the contents of the Spam folder calculated into the total used. But, it looks like when a new spam email is delivered, before the sieve rules in the lda can move it into the spam folder, it is added to the maildirsize … [View More]file. Then, once it is moved into the Spam folder, if it is directly expunged from the folder, it isn't subtracted from maildirsize file. I am using roundcube as a webmail solution, and it recognizes the Spam folder and lets users directly empty the Spam folder instead of moving it to the trash, and then removing it. If I do move the mail from the Spam folder to the Trash folder, and then empty the trash, it then puts the subtraction in the maildirsize folder. So, either it shouldn't add it in the first place, or even though it is deleted directly from the Spam folder, it should be subtracted from the maildirsize folder, right? Hmmm...maybe its the structure of the default sieve command that I have that is making it want to add it? here is the default sieve script that I use in the sieve_after field : require "fileinto"; # rule:[Spam and Virus Tag] if anyof (header :contains "Subject" "[VIRUS-TAG]", header :contains "Subject" "[SPAM-TAG]") { fileinto "Spam"; stop; } Essentially, what is happening is that users are getting their quota filled up for messages that were in their Spam folder... Thanks, Tim. and here is my dovecot -n output : # 2.0.7: /usr/local/etc/dovecot/dovecot.conf # OS: FreeBSD 8.1-STABLE i386 auth_username_format = %Lu auth_username_translation = %@ auth_verbose = yes disable_plaintext_auth = no dotlock_use_excl = yes first_valid_uid = 100 listen = * lock_method = dotlock log_path = /local/logs/dovecot.errors mail_fsync = always mail_gid = 100 mail_location = maildir:%h/Maildir mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = " quota" mail_uid = 100 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date imapflags notify mmap_disable = yes passdb { args = /bin/checkpassword_dovecot_auth driver = checkpassword } plugin { quota = maildir:User quota quota_rule = Trash:storage=+100M quota_rule2 = Spam:ignore sieve = ~/.dovecot.sieve sieve_after = /home/mailboxes/sieve/to_spam_folder.sieve sieve_dir = ~/Maildir/sieve sieve_extensions = +notify +imapflags } protocols = imap pop3 sieve service auth { unix_listener auth-userdb { group = sn mode = 0600 user = sn } } ssl_cert = </etc/ssl/certs/dovecot.pem ssl_key = </etc/ssl/private/dovecot.pem userdb { driver = prefetch } userdb { args = /bin/checkpassword_dovecot_deliver driver = checkpassword } verbose_proctitle = yes verbose_ssl = yes protocol pop3 { pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol lda { info_log_path = /local/logs/dovecot-deliver.log log_path = /local/logs/dovecot-deliver-errors.log mail_plugins = " quota sieve" } protocol imap { mail_plugins = " quota imap_quota" } protocol sieve { managesieve_sieve_capability = comparator-i;ascii-numeric fileinto reject vacation imap4flags notify include envelope body relational regex subaddress copy } [View Less]

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[Dovecot] Reproducable hang caused by IMAP server
by Matthias Scheler 03 Feb '11

03 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 … [View More]

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[Dovecot] Resource temporarily unavailable
by Len7hir 03 Feb '11

03 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 … [View More]

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[Dovecot] STARTTLS problem
by Lucas -LandM- 03 Feb '11

03 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:… [View More] 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 [View Less]

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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: "/… [View More]

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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-… [View More]

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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 … [View More]

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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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