John,
 
  That's exactly what Send=  Editor does, and that's the best  way to create a
loop. It never  works besides. The reason  is very simple: there is  no way to
identify  the mail  origin.  Even a  human reader  (your  truly) has  problems
determining the  origin of some  ARPA mailfiles  from some SIGs.  Whenever you
have to look  into the BODY of  the mailfile and use your  brain to understand
what it is about, it's just not usable and you'd better not try to do anything
with it.
 
  Eric