[dmarc-ietf] AD review draft-ietf-dmarc-eaiauth-02

Alexey Melnikov <alexey.melnikov@isode.com> Wed, 27 February 2019 13:56 UTC

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To: dmarc@ietf.org
From: Alexey Melnikov <alexey.melnikov@isode.com>
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Date: Wed, 27 Feb 2019 13:56:25 +0000
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Subject: [dmarc-ietf] AD review draft-ietf-dmarc-eaiauth-02
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Hi all,

This document is in a good shape, but I have a couple of minor things 
that I would like to see fixed before initiating IETF LC:

4.  SPF and internationalized mail

    SPF macros %s and %l expand the local-part of the sender's mailbox.
    If the local-part contains non-ASCII characters, terms that include
    %s or %l do not match anything.  (Note that unlike U-labels, there is
    no way to rewrite non-ASCII local parts into ASCII.)

The SPF RFC is using %{s} and %{p}, so I appreciate if the text above is 
updated appropriately.

5.  DKIM and internationalized mail

    dkim-safe-char        =  %x21-3A / %x3C / %x3E-7E / %x80-FF
                         ; '!' - ':', '<', '>' - '~', non-ASCII

Addition of UTF-8 is not precise enough and will encourage buggy 
implementations. So please replace the last alternative "%x80-FF" with:

  UTF8-2 / UTF8-3 / UTF8-4

UTF8-2          = <Defined in Section 4 of RFC 3629>

UTF8-3          = <Defined in Section 4 of RFC 3629>

UTF8-4          = <Defined in Section 4 of RFC 3629>

So RFC 3629 would be another normative reference.

Thank you,