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

Damian Lukowski <rfc@arcsin.de> Tue, 31 March 2020 17:56 UTC

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From: Damian Lukowski <rfc@arcsin.de>
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Date: Tue, 31 Mar 2020 19:55:36 +0200
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Subject: Re: [dmarc-ietf] Definition of "value" in RFC8601
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> I don't see any reason to exclude them.  We could do this:
>
>       autbserv-id     = sub-domain *("." sub-domain)
>
> Where sub-domain is imported from 5321 for ASCII mail and 6531 for EAI mail.

Does this mean that a parser would need to know if the message has been
sent with SMTPUTF8 in order to pass or refute U-labels?