On 2021-09-20 at 17:10:35 UTC-0400 (Mon, 20 Sep 2021 23:10:35 +0200)
Jaroslaw Rafa via mailop <r...@rafa.eu.org>
is rumored to have said:
Dnia 20.09.2021 o godz. 19:40:24 Peter N. M. Hansteen via mailop
pisze:
if you do reach a human there, could you do us all a favor and ask
them whether they still believe in the tooth
fairy^H^H^H^H^H^H^H^H^H^H^H^HSMTP callbacks and show them
https://bsdly.blogspot.com/2017/08/twenty-plus-years-on-smtp-callbacks-are.html?
I think you're wrong claiming in that article that SMTP callbacks are
"only
verifying in a very limited sense that the domain's mail exchanger was
indeed equipped with a functional SMTP service." They verify much more
than
that, they verify whether the target address actually exists.
Nope.
They verify that one MX for the domain does not reject mail for the
address at RCPT time, given what it knows about the fake attempt at RCPT
time.
--
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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