Re: what happens when you put a typo in a DNSBL server?

JL> If only. I am constantly amazed at the bozos who misconfigure their JL> DNSBL lookups and don't notice.

Part of the problem is that the protocol is designed to overlay an existing protocol without providing a valid positive response. In this case, lame ISP configures a typo and goes for ages without noticing that it didn't help them at all because every query was getting a NXDOMAIN back

Uh, not quite. Try looking up 2.0.0.127.abuse.net, and then explain to me why people keep hammering on it. Regards, John Levine, johnl@iecc.com, Primary Perpetrator of "The Internet for Dummies", Information Superhighwayman wanna-be, http://johnlevine.com, Mayor "I dropped the toothpaste", said Tom, crestfallenly.