lost connection after DATA from localhost.localdomain

[Rene]

Hi list.

I setup a Kolab 2.0.1 System using the wiki.
Everything is working fine now but i have a problem after a few days of a
running system:

I changed nothing on the server since last reboot 14 days ago. Suddenly
the the server stoped working with the folling logentry in
/kolab/var/postfix/log

postfix/smtpd[29600]: lost connection after DATA from
localhost.localdomain[127.0.0.1]

After restarting all services everything is fine again.

can you tell me what was wring with the system or where i should start
searching ?


Best Regards
Rene