a detour DANE, was A Deep Dive on the Recent Widespread DNS Hijacking
John R. Levine
johnl at iecc.com
Thu Feb 28 02:13:05 UTC 2019
> SMTP transitioned from A to MX.
No, it didn't. A surprising number of real mail hosts only publish an A,
and I lost the battle to say that MX shouldn't fall back to AAAA. It
> SPF could have been the same except people were impatient and had
> unrealistic expectations of how long it would take.
Perhaps it's a generational thing. I'm not very interested in transitions
that won't happen until after I'm dead.
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