Distributed spam attack.

[Matt <mlist@cmcflex.com>]

So I've searched around but haven't found any real solutions (in fact,
there may not be any solutions).  For the past week one of my virtual
domains has been slammed by what appears to be a distributed spam
attack.  I have the validrcptto patch
(http://qmail.jms1.net/patches/combined-6c5.shtml)
installed - so at least I don't have 80,000 messages trying to bounce.
At first it was a big deal because it assisted in maxing out my remote
concurrency, but that has subsided quite a bit now - so now it's just
annoying me.  Is there any real solutions to deal with this?  I could
add the ip addresses to my iptables . . . but boy would that be a lot of
ip's.

Any insight would be appreciated,

Matt