>So, ISPs not doing reverse DNS for IPv6, like my current ISP, are making it >impossible to use your own mail server to deliver mail over IPv6. I think >they are doing a serious disservice to the open internet.
Aw, c'mon. This argument was over a decade ago. If your ISP is like most other ISPs, retail connections have port 25 blocked, the IP ranges are listed in the MAPS DUL and Spamhaus PBL, and the IPv4 addresses have rDNS with names that say don't connect to me. (The patterns that Richard derides work surprisingly well in practice.) The reason, as we all know, is that about 99% of mail from retail connections is botnet spam, and it's sheer self defense. You don't have to like it, but it's not going to change, and it's a waste of time to argue about it. There are plenty of hosting providers that will rent you a VPS for $5/mo with static v4 and v6 addresses and rDNS that matches whatever forward DNS you point at it. If it's not worth $5/mo, well, OK. R's, John _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
