On Wed, 27 Nov 2002, Raymond Norton wrote: > They all have different mail servers, 20 servers, on 20 different > networks. All have to go through my gateway to get out to the > Internet. You'd want to set up a router to direct anything outbound on port 25 to your local mail server, which would scan the messages for viruses, and bounce it if it did contain viruses. Getting the traffic to redirect is left as an exercise to you; if it's Linux with iptables or Cisco, should be pretty easy. As far as the mail server goes, I'd personally set up a Sendmail box with Mimedefang. If you just want to scan for the most common viruses, you can use clamd (free anti-virus); otherwise, I'd probably lean towards going Sophos, because you can use Sophie to get daemonized scanning (IE, the system doesn't launch a new instance of a virus scanner for each message; it just connects to a socket on the local machine and tells the already-running scanner 'scan this!'). -- Nate Carlson <natecars at real-time.com> | Phone : (952)943-8700 http://www.real-time.com | Fax : (952)943-8500