Incoming SMTP in the year 2017 and absence of DKIM

Bjørn Mork bjorn at mork.no
Thu Nov 30 09:22:40 CST 2017


"John Levine" <johnl at iecc.com> writes:

> Broken rDNS is just broken, since there's approximately no reason ever
> to send from a host that doesn't know its own name.

rDNS is not a host attribute, and will therefore tell you exactly
nothing about the host.


Bjørn



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