- dovecot - dovecot.org

[Dovecot] imap abort after upgrade from 2.2.4 to 2.2.7
by morrison 17 Jan '14

17 Jan '14

Hi, I used to use dovecot 2.2.4. I saw lots of warnings saying 'Extension header update points outside header size'. I upgraded to dovecot 2.2.7, based on the discussion in mail list. Now, I see lots of imap aborts around: src/lib-index/mail-index-transaction-export.c:203: i_assert(u32.offset + u32.size <= ext_hdr_size); I also noticed, in some mailbox, imap process kept abort until all index files in the mailbox were manually deleted. Did someone run into the same problem and any solution to this? Thanks,

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[Dovecot] Dovecot IMAP proxy for gmail IMAP server
by CM Reddy 17 Jan '14

17 Jan '14

Hi All, I am experimenting to use Dovecot as an IMAP proxy to GMAIL server. I would like configure my localhost as an Dovecot IMAP proxy and trying to access my GMAIL using the Thunderbird email client. Please share the steps to configure and access my mails from GMAIL server. - Thanks CM Reddy

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[Dovecot] Use dovecot for enterprise
by ♥ NiNJA ♂ 17 Jan '14

17 Jan '14

Hi guys I like to know is it possible to create Unlimited number of email accounts with Unlimited Storage in each email ? Does anybody do it ? Does dovecot good enough for having more than millions of users ? Thanks :-)

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[Dovecot] Changing user specific configs one at a time using userdb text file to override defaults...
by Charles Marcus 17 Jan '14

17 Jan '14

Hi all, Ok, I'm now interested in testing converting users one at a time to mdbox+SIS, but want to make sure I understand how to do this. It appears the best way - for smaller installations at least - is to just use a simple text file userdb to override the defaults, then once all of the users have been converted, change the defaults and remove the userdb txt file overrides. So, would love to hear details from others who have done something like this. Thx! -- Best regards, Charles

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[Dovecot] Getting more out of the %w variable.
by Julian PG 17 Jan '14

17 Jan '14

Hello Dovecot community, I have a backend database application that handles all system wide user authentication (from web to mail and more). Passwords are not stored in plain text. So I would like to support more than PLAIN. Perhaps at least CRAM-MD5 or DIGEST-MD5 for example. Even though connections over TLS are encouraged (and even enforced). Some MUA and users still think its a better idea than PLAIN (even sent over an encrypted session). I have a vague memory of getting some warnings with thunderbird in regards to the use of PLAIN. Of course the %w variable would have to include the challenge as well as the response. Or perhaps even a seperate variable for the challenge? Or course at the moment the %w variable is an empty string for anything other than PLAIN. This would make some users and MUAs happy (even though pointless over TLS - I agree). Your thoughts would be appreciated. Regards, Julian. -- Not time for sigs!

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[Dovecot] Received: header showing 127.0.0.1 after switch to dovecot LDA?
by Charles Marcus 16 Jan '14

16 Jan '14

Hi all, I'm guessing this is correct behavior, but wanted to make sure... I noticed that for locally delivered messages (between 2 local users inside our domain, so they never leave the server), the first Received: header line content changed after I switched to the dovecot LDA. Before, using postfix/virtual for delivery, the header looked like this: Received: from [192.168.1.25] (client.example.com [192.168.1.25]) by smtp.example.com (Postfix) with ESMTPSA id 67E33A20542; Wed, 6 Jun 2012 10:55:55 -0400 (EDT) But now it looks like this: Received: from [127.0.0.1] (client.example.com.com [192.168.1.14]) by smtp.example.com (Postfix) with ESMTPSA id 4EEF7802AF325 for <me(a)example.com>; Wed, 15 Jan 2014 18:29:17 -0500 (EST) so, 2 questions... 1. Why does it show 127.0.0.1 instead of the client IP, and 2. Why did postfix/virtual include the "for <me(a)example.com>;" but the dovecot LDA doesn't? Thanks, -- Best regards, Charles

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[Dovecot] Replication file sizes
by IT geek 31 16 Jan '14

16 Jan '14

Hi, I'm using Dovecot 2.2.9 to replicate my mailbox to a remote server. My mailbox on ServerA is 235Mb, but on ServerB it ends up being 358Mb. Does anyone know why this is? Shouldn't they be the same size? doveconf -n from ServerA: # 2.2.9: /usr/pkg/etc/dovecot/dovecot.conf # OS: NetBSD 5.2 cobalt auth_mechanisms = plain login doveadm_password = secret doveadm_port = 12345 first_valid_uid = 1003 last_valid_uid = 1020 listen = 192.168.1.1 mail_location = mbox:~/mail:INBOX=/var/mail/%u mail_plugins = " notify replication" passdb { driver = passwd } plugin { mail_replica = tcp:serverb.test.com } protocols = imap service aggregator { fifo_listener replication-notify-fifo { mode = 0666 } unix_listener replication-notify { mode = 0600 } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service doveadm { inet_listener { port = 12345 } } service imap-login { inet_listener imap { port = 0 } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0600 } } ssl_cert = </etc/openssl/certs/servera.test.com.crt ssl_key = </etc/openssl/private/serverb.test.com.key userdb { driver = passwd } protocol lda { postmaster_address = postmaster(a)test.com

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[Dovecot] Dovecot 2 separate login for POP3 connections ?
by BONNET, Frank 16 Jan '14

16 Jan '14

Hello Is it possible to configure a separate logfile for incoming POP3 connections ( dovecot 2.2.9 ) thanks

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[Dovecot] mail-filter always results in corrupted indexes
by martijn.list 16 Jan '14

16 Jan '14

Hi, I'm experimenting with the mail-filter plugin but whenever I add anything to a message, it always results in an corrupted cache: from the logs: Dec 14 16:09:55 ciphermail-webmail dovecot: imap(martijn=djigzo.com(a)ciphermail.private): Error: Corrupted index cache file /var/vmail/martijn=djigzo.com(a)ciphermail.private/dovecot.index.cache: Broken physical size for mail UID 76 Dec 14 16:09:55 ciphermail-webmail dovecot: imap(martijn=djigzo.com(a)ciphermail.private): Error: read() failed: Invalid argument Dec 14 16:10:02 ciphermail-webmail dovecot: imap(martijn=djigzo.com(a)ciphermail.private): Error: Cached message size smaller than expected (773 < 777) Dec 14 16:10:02 ciphermail-webmail dovecot: imap(martijn=djigzo.com(a)ciphermail.private): Error: Maildir filename has wrong S value, renamed the file from /var/vmail/martijn=djigzo.com@ciphermail.private/cur/1387033802.M114583P9631.ciphermail-webmail,S=773,W=791:2, t A do-nothing filter that just sends the input to the output works but whenever I add something trivial to the message, the cache is always corrupted. I using Dovecot 2.2.9.1 (from the deb archives). I use the following trivial test to add some XXX chars and and later remove them. In mail-filter.sh I append some chars and in mail-filter-out I filter these chars out (this is just a test) cat > /tmp/dovecot-in.txt echo "XXX" >> /tmp/dovecot-in.txt cat /tmp/dovecot-in.txt mail-filter-out: cat > /tmp/dovecot-out.txt sed -i /XXX/d /tmp/dovecot-out.txt cat /tmp/dovecot-out.txt Any idea what I'm doing wrong? Kind regards, Martijn Brinkers

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Re: [Dovecot] Couldn't drop privileges
by Joseph Tam 16 Jan '14

16 Jan '14

From: CM Reddy <cmreddy(a)armor5.com> > userdb { > args = username_format=%u /etc/dovecot/users > driver = passwd-file > } > ... > Log information: > ... > Jan 13 16:42:44 cmreddy-Lenovo-G500s dovecot: imap(armor5): Error: user > armor5: Couldn't drop privileges: User is missing GID (see mail_gid setting) Fairly self-explanatory, isn't it? It appears your userdb does not specify GID for a user. Either define it, or ... In share/doc/dovecot/example-config/conf.d/10-mail.conf: # System user and group used to access mails. If you use multiple, userdb # can override these by returning uid or gid fields. You can use either numbers # or names. <doc/wiki/UserIds.txt> #mail_uid = ... if all your users share the the same GID, set it here. Joseph Tam <jtam.home(a)gmail.com>

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