On 2026-01-11 at 13:55:49 UTC-0500 (Sun, 11 Jan 2026 10:55:49 -0800)
Randy Bush via Postfix-users <[email protected]>
is rumored to have said:
two MX targets where i am trying to redirect detedted spam from one to
be accumulated on the other. the detector (m1) rspamd adds X-Spam:
header, and the receiver sees that header and postfix rejects because
of
header_checks = regexp:{ {/^X-Spam(-Flag)?:[[:blank:]]*YES/ REJECT}
}
[ ghu knows where i got that complex regexp ]
how do i hack that to accept iff recipient is local user named `spam`
or
semantic equivalent?
You switch to a milter or a policy filter.
The Postfix header_checks facility is (as documented) not able to do
anything other than evaluate a single header at a time.
--
Bill Cole
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