Based on your delete criteria, it would be much easier to filter out unwanted mail messages on an incoming relay mailer in your DMZ. You could do other things there such as filtering out mail with MIME attachments beyond a certain size limit, or just nuking the attachemnts. You should not have to deal with the problem post facto.
-tristram -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]