This is my first experience trying to setup a LISTSERV.  I followed the install instructions but there must be more to the configuration because when I try to send the test message I get the following NDR from the exchange server:
               There was a SMTP communication problem with the recipient's email server.  Please contact your system administrator.
            <t #5.5.0 smtp;550 No such list.>

Can somebody give me any suggestions?

Thank you.