August 2012 - dovecot

[Dovecot] Running spamc during LMTP delivery
by martin f krafft 12 Aug '12

12 Aug '12

Hello list, we are using dovecot-lmtp for delivery to virtual users, and vmm[1] to manage them. 1. http://vmm.localdomain.org/ One nice feature of vmm is that every virtual user has their own UID/GID on the UNIX filesystem. There is no passwd entry, so no shell login, but each user effectively has a home directory and can run commands in isolation and with lowered privileges. This requires dovecot-lmtp because only the LMTP LDA runs with root rights and can drop privileges to become the specific user for which it is delivering mail. We would now like to run SpamAssassin with the possibility of using the antispam plugin to enable virtual users to train their databases. Do you have an idea how I could let dovecot-lmtp invoke spamc? Or an external command as a filter, to be run by the final user? Thanks, -- martin | http://madduck.net/ | http://two.sentenc.es/ "truth is stranger than fiction, but it is because fiction is obliged to stick to possibilities; truth isnt." -- mark twain spamtraps: madduck.bogus(a)madduck.net

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[Dovecot] Exim and Dovecot
by Rafael Nathan 11 Aug '12

11 Aug '12

Hi, I am installing Exim and Dovecot through yum on my Centos 5 x86_64 machine. Exim is unable to find the virtual users. Is there a full-fledged guide to get the two working. Any help is highly appreciated. Regards, Rafael

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[Dovecot] looking for information on Vacation auto-reply
by rob 11 Aug '12

11 Aug '12

Hello We are looking for information on how to use Vacation auto-reply . I've read http://wiki2.dovecot.org/Pigeonhole/Sieve/Usage and a few other pages, but have not found how to set it up. We use sogo and thunderbird . Is there a how to or document for this somewhere? This is our configuration information: dovecot -n # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-2-amd64 x86_64 Debian wheezy/sid auth_mechanisms = plain login auth_username_format = %Ln lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_location = maildir:%h/Maildir mail_plugins = " quota" maildir_very_dirty_syncs = yes 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 ihave namespace { inbox = yes location = prefix = INBOX. separator = . type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { mail_plugins = quota sieve quota = fs:user quota_warning = storage=95%% quota-warning 95 %u quota_warning2 = storage=80%% quota-warning 80 %u quota_warning3 = storage=60%% quota-warning 60 %u quota_warning4 = storage=40%% quota-warning 40 %u sieve = ~/.dovecot.sieve sieve_before = /etc/dovecot/sieve/spam.sieve sieve_dir = ~/sieve sieve_global_dir = /etc/dovecot/sieve/ } postmaster_address = fbcadmin(a)fantinibakery.com protocols = " imap lmtp sieve" quota_full_tempfail = yes service auth-worker { user = $default_internal_user } service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } unix_listener auth-userdb { group = postfix mode = 0600 user = postfix } } service imap-login { service_count = 0 vsz_limit = 128 M } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 1 service_count = 0 vsz_limit = 256 M } service quota-warning { executable = script /fbc/bin/mail/quota-warning.sh user = dovecot } ssl = required ssl_ca = </etc/postfix/ssl/gd_bundle.crt ssl_cert = </etc/postfix/ssl/mail.fantinibakery.com.crt ssl_key = </etc/postfix/ssl/mail.fantinibakery.com.key userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol lmtp { mail_plugins = quota sieve } protocol imap { mail_max_userip_connections = 30 mail_plugins = " quota imap_quota" plugin { antispam_backend = spool2dir antispam_signature = X-DSPAM-Signature antispam_spam = Junk antispam_spool2dir_notspam = /var/spamtrain/not-spam/%%020lu-%u-%%05 antispam_spool2dir_spam = /var/spamtrain/spam/%%020lu-%u-%%05 antispam_trash = Trash antispam_verbose_debug = 1 } } protocol sieve { mail_debug = yes managesieve_implementation_string = Dovecot Pigeonhole }

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[Dovecot] lmtp: Error: mmap failed with file ... dovecot.index.cache: Cannot allocate memory
by David Jonas 10 Aug '12

10 Aug '12

Hello, I have a mailbox with an ungodly number of small messages in it. When new messages are delivered lmtp kicks up an error like the one below. I tried raising the vsz_limit for lmtp but that didn't see to help. Any ideas (besides deleting 400k messages)? Thanks! dovecot: lmtp(6068, user(a)example.com) Error: mmap() failed with file /home/vmail/domains/example.com/user/Maildir/dovecot.index.cache: Cannot allocate memory # ls -lah dovecot.index.cache -rw------- 1 vmail vmail 128M Jul 29 20:16 dovecot.index.cache # doveadm mailbox status -u user(a)example.com all inbox INBOX messages=434118 recent=59848 uidnext=434119 uidvalidity=1293568548 unseen=432625 highestmodseq=14023 vsize=1329486283 guid=f8d48232244a1a4dfe2e0000cb0ad7e0 # doveconf -n ... default_vsz_limit = 256 M service lmtp { inet_listener lmtp { port = 24 } vsz_limit = 256 M }

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[Dovecot] postfix mysql quota map to dovecot dict in mysql
by Benny Pedersen 10 Aug '12

10 Aug '12

currently dovecot dict is CREATE TABLE IF NOT EXISTS `quota` ( `username` varchar(100) COLLATE latin1_general_ci NOT NULL, `bytes` bigint(20) NOT NULL DEFAULT '0', `messages` int(11) NOT NULL DEFAULT '0', PRIMARY KEY (`username`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; there is not field that says how much quota each user have, so one cant make a query on how much its left pr user how can i resolve this in dovecot dict ? i like to do an postfix mysql map to temp reject if quota is out of limit -- Benny Pedersen

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[Dovecot] Server side Sieve with virtual users
by Luigi Rosa 10 Aug '12

10 Aug '12

Is there a way to implement server-side filters with Dovecot configured with virtual users (userbase in mysql, a single *NIX user account that owns /var/spool/mail and its content)? Thanks Ciao, luigi -- / +--[Luigi Rosa]-- \ A generation which ignores history has no past... and no future.

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Re: [Dovecot] Server side Sieve with virtual users
by Adrian Minta 09 Aug '12

09 Aug '12

On 08/09/12 20:10, Luigi Rosa wrote: > Adrian Minta said the following on 09/08/2012 18:33: > >>> Is there a way to implement server-side filters with Dovecot >>> configured with >>> virtual users (userbase in mysql, a single *NIX user account that owns >>> /var/spool/mail and its content)? > >> Yes ! > > :) > > And the webpage/wikipage with documentation about this is.... ? > > > Ciao, > luigi > First step is to have a mail system that works without sieve. This is the hard part. Depending on your preferred distro here are two nice webpages for this: http://wiki.mediatemple.net/w/(ve):Install_Postfix_with_Dovecot_on_CentOS http://workaround.org/ispmail Second step is to enable sieve, for witch you only need to uncomment the specific lines from dovecot.conf. For dovecot 1.2, you will have something like: protocols = pop3 pop3s imap imaps managesieve protocol lda { ... mail_plugins: quota sieve } protocol managesieve { } plugin { ... sieve=~/.dovecot.sieve sieve_dir=~/sieve } -- Best regards, Adrian Minta

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[Dovecot] Dovecot LMTP - Delivered-To header weirdness
by Daniel Piddock 09 Aug '12

09 Aug '12

Hi, I'm not sure if this is a deliberate design decision or a technical limitation that I've missed. Please briefly explain if so :). Or a bug or feature request? When LMTP receives a mail with a single recipient it adds a Delivered-To header. However if the message is delivered in a batch that header isn't added. At first I thought maybe the LMTP was doing something with hardlinks but that doesn't appear to be the case (for rather obvious reasons.) Sample headers (single recipient): Return-Path: <user(a)domain.test> Delivered-To: <user(a)domain.test> Received: from mx.domain.test ([127.0.0.1]) by domain.test (Dovecot) with LMTP id ZNTPFX2NI1CcCwAAVMeomg for <user(a)domain.test>; Thu, 09 Aug 2012 11:14:21 +0100 Envelope-to: user(a)domain.test Delivery-date: Thu, 09 Aug 2012 11:14:21 +0100 Received: from host.domain.test ([172.16.252.1]:44058) by relay.domain.test ([172.16.252.120]:25) with esmtp id 1SzPkz-0000lz-7v (Exim 4.80) for user(a)domain.test (return-path <user(a)domain.test>); Thu, 09 Aug 2012 11:14:21 +0100 Message-ID: <50238D7D.2000707(a)domain.test> Date: Thu, 09 Aug 2012 11:14:21 +0100 From: User <user(a)domain.test> To: User <user(a)domain.test> Subject: test And an expansion list: Return-Path: <user(a)domain.test> Received: from mx.domain.test ([127.0.0.1]) by domain.test (Dovecot) with LMTP id Gf+yBmiNI1CECwAAVMeomg ; Thu, 09 Aug 2012 11:14:00 +0100 Envelope-to: expansion(a)domain.test Delivery-date: Thu, 09 Aug 2012 11:14:00 +0100 Received: from host.domain.test ([172.16.252.1]:44053) by relay.domain.test ([172.16.252.120]:25) with esmtp id 1SzPkd-0000ls-Qr (Exim 4.80) for expansion(a)domain.test (return-path <user(a)domain.test>); Thu, 09 Aug 2012 11:13:59 +0100 Message-ID: <50238D67.3090802(a)domain.test> Date: Thu, 09 Aug 2012 11:13:59 +0100 From: User <user(a)domain.test> To: Expansion <expansion(a)domain.test> Subject: test At the moment we've turned off batch delivery in the exim smtp transport (max_rcpt=1). Cheers, Dan -- Daniel Piddock, Systems Administrator, CoreFiling Limited http://www.corefiling.com

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[Dovecot] dovecot rpm packages for CentOS ?
by Spyros Tsiolis 09 Aug '12

09 Aug '12

Hello all again, Has anyone any idea how to get the latest dovecot version for CentOS 5.8 or 6.2 32-bit OS ? I did a quick search and found out that the official version of dovecot for CentOS v5.8 is 1.0.2 (!!). Any repos ? Any ideas :-) ? Thank you all, spyros ---- "I merely function as a channel that filters music through the chaos of noise" - Vangelis

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Re: [Dovecot] dovecot rpm packages for CentOS ?
by Vladimir Bukov 09 Aug '12

09 Aug '12

On Thu, August 9, 2012 4:31 pm, Spyros Tsiolis wrote: > > Hello all again, > > Has anyone any idea how to get the latest dovecot version for CentOS > > 5.8 or 6.2 32-bit OS ? > > I did a quick search and found out that the official version of dovecot > > for CentOS v5.8 is 1.0.2 (!!). > > > > Any repos ? Any ideas :-) ? > http://www.city-fan.org/ftp/contrib/mail/

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