I currently have an SMTP connector on an Exchange 2003 server to go to an Ironport spam filter. All of my email goes through that connector. I have a Sharepoint server on my network with SMTP installed. I need to setup a connector to deliver messages from my Exchange server to it, so that those messages don't go to my Ironport box. When I setup a connector it gets queued, but not delivered. Oddly enough, the minute I set that connector up, the Queues view in Exchange System Manager starts showing the domains of external domains I am seding email to. Not sure why.