Better  include  asbestos underwear  too.   You  put your  glutius
maximus in danger when you tell some people to mod their systems ;-)
 
    But seriously, can't LISTSERV just insert the RSCS origin into the
From: field in  such cases?  It already adds the  "Warning -- RSCS tag
indicates an origin  of <user>@<node>", so it knows  roughly where the
file came  from.  With the warning,  all the necessary caveats  are in
place, and  the user ought to  be suspicious of addresses  that aren't
what they seem to be.
 
Ross