Amavis (10024: Connection refused) no transport

i hate plesk every day little bit more.

every day i have any issue with my mailserver..

Now i have a problem with a fresh install server.

First:

I install Plesk

Plesk ist perfectly running

- mails going out, mail coming in everything is fine

now i will install kolab, i buy a licence a install kolab. after i install kolab i cant become emails.



########################### Log from a incoming mail ##################################

Feb 23 11:59:32 w6 postfix/smtpd[22476]: connect...

Amavis (10024: Connection refused) no transport