[Dovecot] Problem with dovecot-lda

[Jef Driesen]

I have installed the dovecot 1.0 beta3 (package included with Ubuntu 
Dapper Drake) and everything is working very well. Next I wanted to try 
the dovecot lda (for sieve filtering).

In postfix I have "mailbox_command = /usr/lib/dovecot/deliver" and I 
followed the instructions from http://wiki.dovecot.org/LDA. I only 
changed "postmaster_address = postmaster at localdomain.local" and "user = 
dovecot" from the example configuration.

With this configuration, no mail is delivered (discarded?) and in the 
logfile there is this error:

Jun  5 18:10:08 localhost postfix/local[9630]: BFA6D5A403: 
to=<jef at localdomain.local>, relay=local, delay=0, status=bounced (local 
configuration error. Command output: Fatal: 
open(/etc/dovecot/dovecot.conf) failed: Permission denied )

Changing permissions on /etc/dovecot/dovecot.conf to 644 fixes the 
problem, but I think this is not the best solution. Any ideas?