Bull*hit (Score 1)

I've been blacklisting / whitelisting for over a year now with detail logs. >95% of spam is now comming from virus infected bots. 5% are serial spammers, or 'opt-in' idiots. - these are pretty easy to pick up and blacklist these days. Open relays, and Some idiot sending mail via their ISP's (eg. Forwarders) are such a small percentage of spam that it's not even worth the time of day blocking them. (eg. nigerian) The defer greylisting method of spam reduction, along with smart white/blacklisting, is really the only solution to the problem. - SA, Is probably more hastle than it's worth.