On Fri, May 16, 2025 at 06:17:05AM +0200, Marco Moock via mailop wrote:
> Resent, as I sent only to the author...
>
> Am 15.05.2025 um 11:28:10 Uhr schrieb John Levine:
>
> > Forwarding is indeed a pain. but this is confused. If you want SPF to
> > work you need to change the MAIL FROM bounce address but that has no
> > effect on the contents of the message. One of the goals of DKIM was
> > that it works even if the message is forwarded.
>
> Even when SPF and DKIM are valid, the DMARC alignment will fail for
> domains that have DMARC policies.
Yes, but adding another DKIM signature does not change the validity or
otherwise of any origin signature. It is reasonable to sign forwarded
mail, unless it has a non-trivial probability of being spam.
--
Viktor.
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