On Wed, 1 Sep 2004 15:45:14 -0400, Nef Perez <nperez@xxxxxxxxxxxxxxx> wrote: > Chris - > I think you're right on the money. When I go to the badmail directory on > my Exchange server, I have thousands of badmail and when I view them > they are addressed to unknown users. The emails are small in size. This might be of assistance: http://hellomate.typepad.com/exchange/2003/07/dealing_with_ba.html > How do I prevent this? Is it as simple as installing a spam guard > software? What was the "long" post titled, so I can research it? What anti-virus and anti-spam software do you run right now? So, you have ruled out your server is not an open relay, and is virus free? On-top of what Chris Wall said about GFI, I would personally recommend TrendMicro's ScanMail. XWall http://www.xwall.us/ is another popular one. Sybari Anti-Gen... etc... ...D P.S. I was called to other duties, so I did not get a chance to append to my first reply and then compliment what Chris said, and continue on with other suggestions.