John Levine wrote:
A list needs to be either all domains or all
e-mail addresses. Do we need to call that out?
You could remove the concept of "e-mail" lists,
I wouldn't miss it for a second. Twisting local
parts into DNS labels is black magic, and with
quoted-strings it gets surreal.
Half of the SPF-EAI draft argues non-stop why
this is a bad idea, a security issue, won't work
with some less capapable DNS APIs designed for
(roughly) LDH + underscore, an interoperability
nightmare (e.g., semantic content of quoted-pair,
embedded dots), and generally the worst part in
SMTP, EAI, and SPF.
Frank
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