On Mon, Mar 30, 2020 at 2:23 PM John Levine <[email protected]> wrote:

> In article <
> caba8r6ttpateyprsgbwkafzvz4u8v8sn1vptpmlqcia2_+5...@mail.gmail.com> you
> write:
> >-=-=-=-=-=-
> >
> >Hmm, we didn't include this in RFC 8616 either, I could imagine that it
> >should be punycoded also, though it really depends on whether in 6532 or
> >5322.
>
> This is another mistake in the ABNF in 8601.  The point of 6532 is
> that with the exception of Message-IDs, any header fields that used to
> be limited to ASCII can now contain UTF-8 printable characters.
>

Does someone have a fix in mind that could be submitted as an erratum?  The
intent was indeed to make the authserv-id either a plain old ASCII domain
name or an A-label which doesn't need quoting.  I missed that RFC 6532
didn't update "value", unfortunately.

-MSK
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