I don't think upper/lower case matters for the address you SERVE ON/OFF
 to LISTSERV.  Also, the reason interactive messages sometimes don't
 find a mailing list subscription when the same command works when sent
 via mail (or vice versa) is often simply that there is no Internet host
 name listed in BITEARN NODES.  Unless someone registers the fact that
 XXX.someplace.EDU is the same a Bitnet host XXX, LISTSERV will never
 know that user@XXX sending an interactive message is the same as
 [log in to unmask]  That appears to be the case for UMBC2.
 
 If you want to check to see if a Bitnet site has registered a host name
 equivalence, you can send either of the following commands to your
 favorite LISTSERV,
 
     show node XXX /internet
     show alias XXX
 
 where "XXX" is the Bitnet host in question.
 
 -jj