Ok. Here's the story. We have an AS/400 that, until recently, hosted our Domino software also. The AS/400 would run reports and then, using a 3rd party application (eSend) would SMTP the reports to the Domino server and then the Domino server would deliver the reports to the correct people. We have since moved Domino off the AS/400 to a Win2k3 box and everything works spectacularly except as what I mentioned above. We can send the reports to any external address (not of our domain) but to no one internally. The configurations from the old server to the new have changed very little (in fact, I don't believe anything changed on the SMTP tabs). Any ideas as to why we are having this issue?