I have been trying to get my blocker set-up in my domain and have been stumbling along. I finally got to the point where the blocker would communicate with the exchange server (by test). I then changed the port forwarding on my firewall so that it forwarded all email to the blocker to be checked. This works but now the blocker will not forward to the exchange server. Am I missing something elso??
When I changed the port forwarding on my firewall back to the original IP address, then email went back to my exchange server and the blocker could communicate with the exchange server again via the test feature in the blocker.