On Tue, Mar 7, 2023, at 12:02, Benny Pedersen via Postfix-users wrote:
>
> why is arc invalid ?
My email provider is adding a little more detail:
Authentication-Results: pb-mx20.pobox.com;
arc=invalid
(as.1.list.sys4.de=invalid (public key: does not support hash algorithm
'sha256'), ams.1.list.sys4.de=invalid (public key: does not support hash
algorithm 'sha256'))
smtp.remote-ip=188.68.34.52;
--
Harald Koch
[email protected]
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