In article <CABa8R6s6_-htTh5jpGn4x7Ji_yJVoqXCXV=evxenwdrlkcw...@mail.gmail.com> you write: >Isn't the simplest way to handle this is to treat IPv6 at the /64 or >smaller level?
That's what Spamhaus does. They made rbldnsd serve v6 CIDRs like it serves v4. Apropos of Steve's comment about blowing caches, I did some simulations a while ago of various ways to publish v6 DNSBLs. I was surprised to find that even v4 BL queries aren't cached much. There's a handful of heavily used cache entries for hosts that send lots of mail, and a long tail of IPs that are hit once or twice and then never again. Also, anyone who uses BLs at scale has local mirrors, and querying a local mirror is as fast as querying a local cache. R's, John _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
