it caused a lot of mail to bounce. (all mail that would otherwise have been received by that RBL's subscribers, in fact.) it did however have the effect of causing the subscribers to reconfigure their mailers to stop querying the now-dead RBL in question. what's the current thinking on this?
I know the guy, in fact was talking to him on the phone earlier this afternoon and it wasn't as effective as you might hope. He may have had to abandon the domain. A probably not surprising number of people have decided that my abuse.net is a DNSBL, and nothing I've been able to do makes a serious dent. Look up the TXT record for any n.n.n.n.abuse.net where the n's are decimal numbers.
2208 68.216.187.10
This is Integrity On Line, which purports to be a "filtered solution provider", which I presume means a big thick firewall that keeps out anything that might upset their subscribers. It might be illuminating to give them a call, express concern that a computer in their center is sending 400 unwanted messages a minute to you, and see if you can find anyone who has any idea how the mail servers are configured. I realize they're only a tiny percentage of your junk traffic, but their clue level is probably typical. Regards, John Levine, johnl@iecc.com, Primary Perpetrator of "The Internet for Dummies", Information Superhighwayman wanna-be, http://www.johnlevine.com, Mayor "More Wiener schnitzel, please", said Tom, revealingly.