We recently installed Listserv for Unix, and we're seeing some sub-optimal
header re-writing from someplace.  The headers for one list in particular
used to appear as:
  To: Multiple recipients of list INFOSERV <[log in to unmask]>
but now that some of the distribute load is sent to listserv.vt.edu for
handling, those recipients are getting headers with:
 To: Multiple recipients of list INFOSERV <[log in to unmask]>
instead.
 
I have not been able to track down yet whether the re-writing is happening
in the VM SMTP, the RS6000 sendmail on the way in, Listserv on the RS6000,
or sendmail on the way out.  Any suggestions where to start looking?
 
                                Valdis Kletnieks
                                Computer Systems Engineer
                                Virginia Tech