On Thu, 2001-10-25 at 11:15, Norbert Nemec wrote: > Hey, what about that simple idea: > > Anybody who is subscribed to any of the debian lists is automatically added > to one global list of permitted senders. Addresses are never removed from > there unless they are abused for spam.
Some of the spammers I've seen will subscribe to a list, post, and immediately unsubscribe. The Bangalore LUG [1] mailing list moderators tackle this breed by requiring all new subscribers to be moderated for a few days. [1] http://www.linux-bangalore.org -- Kiran Jonnalagadda http://www.pobox.com/~jace
