Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!maverick.ksu.ksu.edu!hoss!news
From: james@engrs.unl.edu (James Nau)
Newsgroups: comp.unix.aix
Subject: mail to unknown user in AIX 3.1
Keywords: mail unknown user permission denied
Message-ID: <1990Sep05.220859.18408@hoss.unl.edu>
Date: 5 Sep 90 22:08:59 GMT
Sender: james@engrs.unl.edu
Distribution: usa
Organization: College of Engineering, University of Nebraska--Lincoln
Lines: 10
Originator: james@engrss2.unl.edu

Has anyone an idea why I would get the following message when I 
tried mailing to an unknown user:

   ----- Transcript of session follows -----
550 xuser... User unknown: Permission denied

Permission denied for what?

Thanks
James