In article <58713b65-01a4-f07f-5fe4-6876001c20d1(_at_)linuxmagic(_dot_)com> you
Just a thought, is this maybe time to enshrine some of the MAAWG
recommendations surrounding this?
If your email server egress IP has a PTR of:
There SHOULD be a URL that responds to http://example.com, where
information and contact information about the operator can be found..
Can you give us a pointer to the document that says that? I've read a
lot of M3 documents and don't recall seeing it.
Also, some operators still find a need for multiple PTR's for an IP, and
some language around avoiding too many PTR records for the same IP, and
that EACH PTR should have an associated A record and functioning URL.
I don't see the point here. Unless you're doing MTA-STS, which is a
separate spec, an MTA doesn't know what name a client thinks it has.
John Levine, johnl(_at_)taugh(_dot_)com, Primary Perpetrator of "The Internet
Please consider the environment before reading this e-mail. https://jl.ly
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