[Mailman-Users] can't subscribe

[Kirk R. Wythers]

I get a undilverable mail message back when I reply to the confirm
message from mailman. 

forestecol-request at x74-47.forestry.umn.edu: 550
<forestecol-request at x74-47.forestry.umn.edu>... User unknown

Reporting-MTA: dns;mhub2.tc.umn.edu

Original-Recipient: rfc822;forestecol-request at x74-47.forestry.umn.edu
Final-Recipient: rfc822;forestecol-request at x74-47.forestry.umn.edu
Action: failed
Status: 5.1.1
Remote-MTA: dns;x74-47.forestry.umn.edu
Diagnostic-Code: smtp;550
<forestecol-request at x74-47.forestry.umn.edu>... User unknown

This is a new list that I just created. I have another list on this
server that are working fine. Anybody have and suggestions as to what is
going on here. 


-- 
Kirk R. Wythers					 University of Minnesota
Email: kwythers at forestry.umn.edu       		 Department of Forest Resources 
Tel: 612.625.22611530                 		 Cleveland Ave. N. 
Fax: 612 625.5212                                Saint Paul,  MN 55108