Majordomo

[Bill Ott]

>From the Majordomo FAQ
Q: How can I restrict a list such that only subscribers can send mail to
the list?
    http://www.greatcircle.com/majordomo/majordomo-faq.html#3.6

>From the list of Majordomo features:
    Written in Perl - easily customizable and expandable

need I say more...

--
Bill Ott      bott at grpl.org