We are receiving a bunch of "irsxxxx.doc" attachments with x = random numbers.  (example:  irs62662.doc) I've tried setting several filters to strip and quarantine these attachments, but it: * either doesn't work at all * strips any attachment with t...

We currently have a filter setup for "malicious file extensions", with several conditions/actions entries that works. The issue is it is very cumbersome to manage/add additional extensions. I also read that this setup is a CPU hog due to the amount o...