I had Symantec Endpoint installed on my SBS 2003. This past weekend it started blocking port 25. I can no longer send mail from my exchange server to my remote smarthost. I have tried to telnet to the remote host onport 25 but it is blocked. I can connect to it throughport 25 from home though. Anyway I called my ISP, they advised they weren't blocking it but had had a number of calls about symantec putting out something recently that caused it to be blocked. I have removed symantec endpoint from my server but it is still blocked. I have had my fill with Symantec.
How can I completely remove this from my server and restore access to port 25.