I think this note DOES trigger the  "this is a nastygram" tests (it comes
from 'daemon'  and is returned  to you with  a message saying  this looks
like a delivery error). So I guess the problem is that the 'From:' userid
does not  accept mail,  and some  bug is  causing LISTSERV  to send  it a
nastygram anyway (should get served out after 10 iterations).
 
  Eric