On 2022-01-17 at 18:08:15 UTC-0500 (17 Jan 2022 18:08:15 -0500)
John Levine via mailop <jo...@taugh.com>
is rumored to have said:
Dunno about you, but where I am, if an IP does not have matching
forward and reverse DNS, that is a very strong signal that it's not
supposed to be hosting a server and you don't want to accept mail from
it.
Well, yes, but Microsoft's gonna Microsoft, so what is one to do?
And yes, it is true that >95% of M365 outbounds DO have matching forward
and reverse DNS.
--
Bill Cole
b...@scconsult.com or billc...@apache.org
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
Not Currently Available For Hire
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