Mail Monitor v1.5 beta - has been released

First of all you can add rule that mark messages as Approved. By default this rule is named Friends. In the Filtering conditions write all GOOD domains or email. Also be sure that the rule is on the top of rules list. By default I've added domain @tsoftcentral.com into this rule. So all messages from me will be Approved

The other way is to use AND button when you create new filtering condition:
subject Starts with FW [AND]
From Does not contain @domain1.com [AND]
From Does not contain @domain2.com [AND]
.....
.....
From Does not contain @domainN.com [AND]
[OK]