April 2014 - dovecot - dovecot.org

[Dovecot] Deduplicate not processing all messages - bug?
by Jiri Bourek 01 Apr '14

01 Apr '14

Hello, I'm trying to create automated backup recovery using "doveadm import" and "doveadm deduplicate". During testing I noticed that deduplicate only deletes some duplicates and has to be called multiple times to find them all. Here's what I've been trying (in shell commands): First, expunge inbox (the end result is the same even if you delete only some messages): # doveadm expunge -u test mailbox inbox all # ls /home/mailboxes/test/cur | wc -l 0 Then import data from backup - twice, so duplicates are created (again, if you don't delete all messages and call import only once, resulting behaviour is the same.) # doveadm import -u test maildir:/home/test "" mailbox INBOX # doveadm import -u test maildir:/home/test "" mailbox INBOX # ls /home/mailboxes/test/cur | wc -l 1046 Then try to deduplicate # doveadm deduplicate -u test mailbox INBOX # ls /home/mailboxes/test/cur | wc -l 1040 And again # doveadm deduplicate -u test mailbox INBOX # ls /home/mailboxes/test/cur | wc -l 1029 And so on until the message count holds on 523 Each repetition removes 10 - 30 duplicates so eventually all duplicates are removed if "doveadm deduplicate" is called enough times in a row. I also noticed that when I repeat the test, import the backup again and call deduplicate, the steps - how many messages are removed at one time - are the same. That is I start with 1046 messages in the mailbox, after first run there's 1040, then 1029 and so on. My guess would be the behaviour depends on what is stored in the mailbox, but that's pretty much all I can figure out on my own at this time. My question is - is this intended behaviour, ie. are you supposed to run doveadm deduplicate as long as the number of messages in the mailbox keeps changing? Or is it a bug? Tried to Google for the answer but no luck, so thanks for any answers. Tested on Dovecot version 2.2.9 and 2.2.12 (both from Debian repositories.)

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[Dovecot] [Bug] doveadm pw Fatal: open(/etc/dovecot/dovecot.conf) failed: Permission denied
by Dwain Blazej 01 Apr '14

01 Apr '14

dovecot --version => 2.1.7 When I as a normal user the command: doveadm pw -s sha512-crypt -p example_password the command exit with return code 89 and the message doveconf: Fatal: open(/etc/dovecot/dovecot.conf) failed: Permission denied If I make Dovecot's configuration files world readable the error goes away. Please remove configuration file dependencies from "doveadm pw".

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[Dovecot] Specifying passwd-file with virtual domains?
by Jeffrey Walton 01 Apr '14

01 Apr '14

I'm trying to use virtual domains and I'm suffering a disconnect. I have two domains - foo.com and bar.com. On the filesystem, they are located at /var/mail/foo.com/ and /var/mail/bar.com/. Users are located at /var/mail/foo.com/john/, /var/mail/bar.com/jane/, etc. There are two password files with <user>:<scheme><password> entries. The scheme is {PLAIN}. They are located at /var/mail/foo.com/users and /var/mail/bar.com/users. According to the wiki, these are passwd-file databases (http://wiki2.dovecot.org/AuthDatabase/PasswdFile) I specified the following in my dovecot.conf. passdb { args = /var/mail/%d/users driver = passwd-file } Attempts to use the configuration result in an authentication failure. Here's an entry from dovecot.log when the failure happens: Mar 31 16:04:12 imap-login: Info: Disconnected (auth failed, 1 attempts in 5 secs): user=<jeff(a)foo.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.1.1, secured, session=<n5/ajez1FgB/AAAB> What exactly goes where to have Dovecot use the 'users' files to authenticate users? Thanks in advance and my apologies for the question. Two days of blog posts, mini-HowTo's and mailing lists has only help me discover ways to do things incorrectly. ********** # dovecot --version 2.1.7 # doveconf -n # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-686-pae i686 Debian 7.4 disable_plaintext_auth = no log_path = /var/log/dovecot.log login_trusted_networks = 127.0.0.1 mail_location = mbox:~/mail:INBOX=/var/mail/%u namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } ... prefix = } passdb { args = /var/mail/%d/users driver = passwd-file } passdb { driver = pam } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = " imap pop3" ssl_cert = </etc/dovecot/dovecot.pem ssl_key = </etc/dovecot/private/dovecot.pem userdb { driver = passwd }

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Re: [Dovecot] Dovecot not honoring configuration settings (auth failure)
by Joseph Tam 01 Apr '14

01 Apr '14

Jeffrey Walton <noloader(a)gmail.com> writes: > I specified the following in my dovecot.conf. > > passdb { > args = /var/mail/%d/users > driver = passwd-file > } > > Attempts to use the configuration result in an authentication failure. > Here's an entry from dovecot.log when the failure happens: > > Mar 31 16:04:12 imap-login: Info: Disconnected (auth failed, 1 > attempts in 5 secs): user=<jeff(a)foo.com>, method=PLAIN, rip=127.0.0.1, > lip=127.0.1.1, secured, session=<n5/ajez1FgB/AAAB> Just to confirm, your <user> specified in the passdb corresponds to what is being authenticated (i.e. client is authenticating as "jeff(a)foo.com", not "jeff")? Otherwise, you'll need to add domains to your passdb, or configure "username_format=%n" Joseph Tam <jtam.home(a)gmail.com>

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