nanog mailing list archives

Re: is it just me or...


From: Bjørn Mork via NANOG <nanog () lists nanog org>
Date: Sun, 25 May 2025 22:34:13 +0200

Tom Ivar Helbekkmo <tih () hamartun priv no> writes:

Well, no.  If the forwarder specifies a proxy envelope sender, and
doesn't change the "From:" header, SPF will not be aligned, but the
original DKIM signature will be valid, so DMARC verification will pass.

True.  It doesn't have to break DKIM if it treats messages with a valid
DKIM signature differently.  Not sure that helps much.



Bjørn
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