I have a subscriber who wishes to subscribe
 with just his first name in the name field.
 My system Listserv 15.0 asks for a first and
 last name and won't accept a singe name.

  Any way to get the system to accept a first
 name only?  I know the person, so it's not an
 issue of someone wanting to conceal their
 identity to the list.

  Thanks,
  Ron