I've been hit many times by the same bozos. They almost always use
unsuspecting sites as spam relays, so I've been notifying these sites and
trying to shutdown the relays.
I love the spaminator idea, but isn't your phone bill going to be pretty
high this month? Also, the way spammers retaliate against retaliators is
to include your email address as the return address in their forged
headers, so you get mail-bombed by naive spam haters.
Lawsuits appear to be the only effective weapon so far.
-- Doug