Malware Policy exception for Good Sender

Messaging Gateway-My suggestion would be to allow a good sender exception for a specific email address or domain and apply it to a malware policy. This would be particularly useful for docuemts that are delivered on a regular basis from a specific email address. My understanding from support is that this functionality is not avaialble. This would minimize risk and workload for IT as opposed to allowing all messages that encrypted to pass unscanned.