Block all outbound port 25 on your firewall, except for your mail server.
From: Holstrom, Don [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 30, 2008 10:52 AM To: NT System Admin Issues Subject: blacklisted PSBL says they have received spamtrap mail from our IP address. How do I check all my PCs to see which ones are responsible? I have anti-virus on all workstations and servers, anti-spam on the e-mail server, and anti-spyware on the workstations. All is updated regularly. What else do I need to do? Any places anyone can point me? ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
