On 02/12/2022 16:54, Victor Sudakov via Exim-users wrote:
I have an exim 4.95 installation sending DKIM-signed mails to two
other exim servers. On one of the receiving servers (FreeBSD,exim-4.95_5),
I see that the DKIM check is successful:

Authentication-Results: XXXXXX;
         iprev=pass (www.library.tomsk.ru) smtp.remote-ip=95.170.141.50;
         spf=pass smtp.mailfrom=library.tomsk.ru;
         dkim=pass header.d=library.tomsk.ru header.s=20221203 
header.a=rsa-sha256

On the other receiving server (Debian, exim4 4.94.2-7), the very same
mail (sent simultaneously to two recipients on XXXXXX and YYYYYY) is
reported as having an unsuccessful DKIM check:

Authentication-Results: YYYYYY;
         iprev=pass (www.library.tomsk.ru) smtp.remote-ip=95.170.141.50;
         dkim=fail (body hash mismatch; body probably modified in transit)
         header.d=library.tomsk.ru header.s=20221203 header.a=rsa-sha256

Is this consistent for all messages sent to the pair of hosts?
Or only occasional?

What libraries do 'exim -d -bV' report for each host?
--
Cheers,
  Jeremy


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