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