Re: [exim] Signed header list in DKIM headers

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Author: Jeremy Harris
Date:  
To: exim-users
New-Topics: Re: [exim] Signed header list in DKIM headers
Subject: Re: [exim] Signed header list in DKIM headers
On 26/01/2020 12:16, exim-users--- via Exim-users wrote:
> however in case of mailing list posts, I get DKIM errors as the Exim-generated DKIM signature contains headers, which are not in my original
> mail (those get inserted by mailing list software afterwards).


Yes. DKIM breaks mailing lists. The proponents of DKIM do
not care about this.

This Exim behavior is fully compliant with the relevant RFCs but somewhat
> annoying. Is there any chance to tell Exim only to list existing headers in DKIM signature (would be a feature request) instead of limiting
> the headers which are DKIM signed in general (I could do this on a rule basis, however that config will be incomplete and would need constant
> adaption).


I'm not clear on exactly which headers you want to sign the existence
and content of, what headers you want to sign the non-existence of,
and what headers you do not want to sign. Can you clarify?
--
Cheers,
Jeremy