I'm having a problem with an Exchange 2000 server on SP4. All services are responding to control functions (stops/starts) but no messages are being delivered. The SMTP server is listening and reports successful submission of messages & says they're queued for delivery but they never show up. Even internal users sending to each other are having a problem. All sent messages are being stuck in the Outbox and not being delivered. I ran eseutil and isinteg to check for any errors to no avail. I'm not sure what could be causing this problem. As a side note, in System Manager, I can't get the properties of the SMTP server under Protocols. When I try, it hangs Exchange SM. --cm **** Chris Maher Senior Network Engineer Applied Data Solutions, Inc. 825 Springdale Drive Whiteland Business Center Exton, PA 19341 e: cmaher@xxxxxxxxxx p: 484.713.1000 f: 484.713.0077