[anti-abuse-wg] Reverse DNS delegations

Fri Apr 5 20:19:59 CEST 2024

It appears that Alessandro Vesely <vesely at tana.it> said:
>Why isn't it possible to gain a delegation by proving number assignment?

Because your ISP can't be bothered.

I have a free /48 from Hurricane and they delegated the rDNS as part
of the setup so it's not like it's unusual or difficult. Delegating
IPv6 rDNS is much easier than IPv4 because the delegation point is
always between two labels in the rDNS, no funky CNAMEs needed.

As you have noticed, you won't have much success sending mail from a
host without rDNS.

R's,
John