On 24.03.25 15:19, Andreas Haumer wrote:
Recently I noticed a (at least for me) very strange problem
with a mailserver running sendmail + SpamAssassin: sometimes
(not always!) the Received: header inserted by sendmail is completely wrong,
triggering SpamAssassin rules like "T_DATE_IN_FUTURE_96_Q"
More details: this is an internet-facing mail MX, currently running Debian 10
with sendmail 8.15.2 and spamass-milter 0.4.0
note that with milter, current Received: header is NOT the one produced by
MTA but by spamass-milter. The milter protocol provides message exactly as it came
without local additions like Received: header.
This also means that Received: header spamd sees as mail is being received
is diferent than the one you see later.
looking at logs I've had similar problem years ago:
https://marc.info/?l=spamassassin-users&m=139282758624769&w=2
without success:
https://marc.info/?l=spamassassin-users&m=139410750008972&w=2
and IIRC the working solution was to avoid sending 'b' macro at all, so
spamass-milter generates its own.
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