Date: Mon, 26 Nov 2018 19:52:59 +0700 From: Victor Sudakov <vas@mpeks.tomsk.su> To: freebsd-questions@freebsd.org Subject: Invalid DKIM signatures in this list Message-ID: <20181126125259.GB86999@admin.sibptus.ru>
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Dear Colleagues, I have noticed that the Mailman which manages this list keeps the sender's "DKIM-Signature:" header intact but modifies the body of the message by adding a footer. This behavior invalidates the sender's digital signature with "dkim=fail (body hash mismatch; body probably modified in transit)". I think, according to the common sense and RFC6377, the Mailman should either remove the "DKIM-Signature:" when modifying the body, or refrain from modifying the body, or add its own valid "DKIM-Signature:" from scratch. What is currently happening does not make sense. Whom do I contact about it? An example of this behaviour can be seen in the message with Message-Id: <20181126081310.026376ddcaad286971909626@sohara.org> and others. -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://vas.tomsk.ru/
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