The Apache Software Foundation lists work pretty well. Members can
automatically post, and non-member posts go to a moderator where they
have to be approved. Moderation takes nothing more than hitting
'reply to', usually. And if you reply to the correct address, that
person has posting rights in the future, automatically. We use ezmlm
to do this.
I volunteer to moderate, if someone is needed - I already do it for a
Thanks for the offer, but I don't think the problem is bad enough to
require moderation.