We've just recently reload IIS on our server and have noticed that our Exchange will not process email sent from within the domain. The domain clients have no problem receiving emails from outside our domain, but any replies or such are not sent. I've tried to test the email connectivity (under tools->email accounts->test message) and we receive the test message from the server but if we send an actual message the message is not sent. We are running SBS 2003. Thanks!