We are getting reports from someone trying to email us that any messages they send us are bouncing back to them. We are trying to determine if this is a restriction on their outgoing SMTP server, or if it's a problem with our incoming SMTP server. Here is the message they receive when they try to send us mail:
Sent: Monday, September 27, 2004 1:33 PM
Subject: Delivery Status Notification (Failure)
This is an automatically generated Delivery Status Notification.