Alternative suggestion: set your list keyword as
 
* DEFAULT-OPTIONS= REVIEW
 
which you reverse (NOREVIEW) on the first posting
by new user IF the user made a legitimate request.
 
--  co-owner:   INFOSYS, TQM-L, CPARK-L, ERAPPA-L, JANITORS, LDBASE-L, et -L
URL:mailto:[log in to unmask]                "I get paid by the millisecond"