You can probably just delete and ignore it. It's a non-delivery report from
a server reacting to a message that a virus program sent spoofing your
address as the sender.

Signature
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> I KEEP RECEIVING BACK A REJECT EMAIL IN OUTLOOK
> IT SAY USER NOT LISTED IN PUBLIC NAME AND ADDRESS BOOK