Re: [dmarc-ietf] Definition of "value" in RFC8601

Damian Lukowski <rfc@arcsin.de> Wed, 01 April 2020 06:21 UTC

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From: Damian Lukowski <rfc@arcsin.de>
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Date: Wed, 1 Apr 2020 08:21:43 +0200
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Subject: Re: [dmarc-ietf] Definition of "value" in RFC8601
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> authserv-id = sub-domain *("." sub-domain)
>    ;  Where sub-domain is imported from 5321 for
>    ; ASCII mail and 6531 for EAI mail
> As a close approximation, any message which has an x80 bit set in a
> character in the header is an EAI message.

As the authserv-id is part of the header, this boils down to:

"If the authserv-id is UTF-8, then it might be UTF-8"

This seems equivalent to

> authserv-id = sub-domain *("." sub-domain)
>    ; Where sub-domain is imported from 6531 for
>    ; any mail