Since the content-type "multipart" must specify a "boundary", I suggest you filter all mail that have the content type "multipart" without "boundary=".
Currently PARMACIA.BIZ sends hundreds of spams daily to our domain and probably to others also. All of them say: Content-Type: multipart/mixed; Content-Transfer-Encoding: 7bit Roger This E-Mail came from the Message Sniffer mailing list. For information and (un)subscription instructions go to http://www.sortmonster.com/MessageSniffer/Help/Help.html
