Another possibility would be for DELETE to go to the 'best' (whatever does it
mean to LISTSERV) peer and then act from there as DEL (GLOBAL if not found
until the deleted person is located. A SILENT or suchlike option (meaning
don't send any msg except if the guy is found) would solve the problem of ARPA
people receiving lots of mail in both the LOCAL and GLOBAL case; this could
even be the default, since in most cases you don't want to know where the user
you want to delete is not.
Jose Maria