minbor 0 Newbie Poster

Hello,
I have a problem with one account in MS Exchange. All other accounts are ok, but whenever you try to send external email to this acount a reply like this comes back:

This is an automatically generated Delivery Status Notification.

Delivery to the following recipients failed.

address@mydomain.com


Final-Recipient: rfc822;address@mydomain.com
Action: failed
Status: 5.4.6
X-Display-Name: User Name

If anyone knows about this issue please let me know. I've searched the net, MS knowledge base ans exchange help files, but no luck finding any solutions.

Please help

minbor