The comments in the code just mean that in general the "Reply-To:" should
point  to the  list  for  a digest  (as  opposed  to the  -search-request
address, a  couple lines  above, or  the LISTSERV  address). The  lack of
support for the "Reply-to=" keyword was  an oversight, which I have fixed
for 1.8b. For  now the only way to  get the behaviour you need  is to set
the "Sender=" keyword to the value you want.
 
  Eric