“The problem arises when one of the DNSBLs [#DNS black lists against spam] wants to shut down. Running one competently is a lot of work, and it’s not surprising that people run out of time, retire, or otherwise can’t do it any more. The goal is to get all of the people who are querying the DNSBL to stop. How do you do that?”
Executive summary: many sites on the Internet runs on autopilot. Once setup, they are never touched. Years after their demise, DNSBL are still queried. Besides the case of DNSBLs, this article is a very interesting glimpse in the real world of system and network administration.
