Domain addressing problem solved.
 
By:
 
1. Making sure RSCSDOMAIN parm for SMTP config file is set
   to Bitnet
2. Setting Sender= and Reply-To= fields to domain name of my
   choice (Vm1.Ferris.Edu) for all lists
3. Installing SMTP RULES file available from several sources
   in place of defaults.
4. Running a little prog that changes smtp@interbit in
   DOMAIN NAMES file to my local smtp gateway.
 
It now appears that all my listserv stuff now has a valid
domain style address and I have lost the .Bitnet which seems
to be such a point of contention.
 
I don't see any problems so far and subscribers' reply "buttons"
now serve up a working address no matter where they are.
 
Thanks for your help.
Regards,
Trevor C Poole
Tech Person and general dogs-body
Ferris State University