On 2022-06-29 10:25, Matus UHLAR - fantomas wrote:
Since SpamAssassin does deep header scanning, it's more effective than
just use incoming IP at MTA level.
On 29.06.22 10:58, Benny Pedersen wrote:
this is not good, its a sign of forwarding that forwards spam in the
first place, that make the forwarding ip grey, not white/wellcommed,
same shit as sendgrid does
SA does this for years and it works perfectly.
SA can detect from which IP was mail delivered to your network (not just to
direct server that uses SA) and check that IP in DNSBLs, instead of only
checking IP of nearest mailserver.
not all headers are checked in all DNSBLs, but SA can check much more than
MTA.
--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
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