Indeed; bounces are sadly very necessary for legitimate email. Email in
general is really broken :-/, thanks a lot to the Kings of Spam.
I'm open to all suggestions to limit spam traffic; Gerrit suggested once
that we drop subscriptions and simply introduce a confirm-per-message
approach. How does that sound?
I still think putting ClamAV on the SMTP server will kill a lot of the scams
and viruses.
-- Spam is a little harder to identify. In our clusters a machine is
dedicated just for doing spam rules.
Spam costs the Internet Billions of dollars every year, from bandwidth to
dedicated hardware to the
labor of keeping rules and programs up-to-date. Money I'd rather be
investing on our other services.
--We've spent over $30k this past year in spam control.
One option (a little complex) would be to register your IP with Binc. Setup
a DynaDNS type system
thus you can lock specific senders to certain IP's, a web interface could be
used to update a profile.
Limit damage:
Have senders build credits. New users can only send 1 message a day, after a
week they can send more.
The longer the member the more they can send per day. That should limit,
fly-by registration senders.
If a 'long time' user starts spamming, knock them back down to a new user.
Just a suggestion,
Ken Lyons