On Tue, 04 Jan 2011 11:01:52 -0500 Rob McEwen <r...@invaluement.com> wrote:
> I've thought this through and... best case scenario is that spammers > then get 5+ years of play time because it will take at least that time > for those other techniques to catch up. Umm.. no. We have plenty of effective techniques we're using right now that don't rely on DNSBLs. I think if we stopped using DNSBLs completely, a bit more spam would leak through, but it wouldn't be catastrophic. > When we are left with only whitelists and no blacklists, an > interesting problem will happen... there will be extreme prejudice > against ALL new IPs not already whitelisted. Life will become more difficult, but it's not all doom-and-gloom. By default, you should be able to get on the whitelist just by asking. If it turns out you've abused the trust, you get banned for a long time. That's essentially how the Spamhaus Whitelist works. Regards, David.