Dnia 18.05.2022 o godz. 16:21:22 Benny Pedersen pisze:
> 
> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=rafa.eu.org;
> s=mail;
>       t=1652875528; bh=2fTe0Wku2vEr5oV7KaSVl+ydxyUkYkt3D6wPpZSAsOM=;
>       h=Date:From:To:Subject:From;
>       b=jaku+8LqSXgkpDyvaFSDHyVZr4qLEbQKETvzwz2Y0c89MHpnWFCPNdb/jakWt1v4X
>        eSjnEeYyVdE4zeHKxszhegTnUe5YquhWJ/OCkZFSQ1v05K6qam/Hdebd+VmI7yZLBM
>        ejVU7qLz/Y/AzPYA+Rt8vG8OPlncfY6uusyDMWSE=
> 
> have 2 From header in h= tag, what software make this sillyness ?
> 
> if google track this, it could matter, but reason i say it is that
> From header must not be temprary or removed before dkim signing, it
> can remove dkim valid auth
> 
> is it software that create a psydo header in that case ?
> 
> find a nother dkim signer would solve it imho

I use OpenDKIM. This may be because of the following in /etc/opendkim.conf:

# Always oversign From (sign using actual From and a null From to prevent
# malicious signatures header fields (From and/or others) between the signer
# and the verifier.  From is oversigned by default in the Debian pacakge
# because it is often the identity key used by reputation systems and thus
# somewhat security sensitive.
OversignHeaders         From

I understand this is a default and recommended setting.
-- 
Regards,
   Jaroslaw Rafa
   r...@rafa.eu.org
--
"In a million years, when kids go to school, they're gonna know: once there
was a Hushpuppy, and she lived with her daddy in the Bathtub."

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