We are running exchange 2K in an AD environment. There is one person at one of our client's companies that cannot email anyone here in our office; when he attempts to do so, he gets a return message saying, "This is an autoreply. I'll never see your message". As far as I can tell, the addresses he is trying to send to are legitamate.
Could someone please help with the following:
1. How can I track down this error? Is there an Exchange activity log I can check that can show me why this message is being sent out, or something like it?
2. What are the possible causes of this behavior?
Please let me know if there is any more info you need in order to assist with the problem, and thanks!