[Dovecot] Dovecot replication, no updates on message deposit

Hi,

I am trying to setup dovecot replication based on:

http://wiki2.dovecot.org/Replication

All mailboxes share the same UNIX userid ('vmail'), and I setup ssh-key based login for this account in both directions. As LDA exim4 is configured to use dovecot deliver LDA. Here is the relevant config from exim:

/usr/lib/dovecot/deliver -d $local_part -f $sender_address -a $original_local_part@$original_domain

When a message is deposited to a mailbox, it does not get replicated. The log is silent:

Mar 25 15:00:20 mx02 dovecot: master: Dovecot v2.2.9 starting up (core dumps disabled) Mar 25 15:01:05 mx02 dovecot: lda(user.name): msgid=unspecified: saved mail to INBOX

The output from doveconf -n is attached.

Any help is appreciated,

Thanks, Milan.