It appears that Scott Kitterman <skl...@kitterman.com> said:
>The PSD definition is probably overlong already:
>
>> 3.2.8. Public Suffix Domain (PSD)
>>
>> The global Internet Domain Name System (DNS) is documented in
>> numerous RFCs. It defines a tree of names starting with root, ".",
>> immediately below which are Top-Level Domain names such as ".com" and
>> ".us". The domain name structure consists of a tree of names, each
>> of which is made of a sequence of words ("labels") separated by
>> period characters. The root of the tree is simply called ".". The
>> Internet community at large, through processes and policies external
>> to this work, selects points in this tree at which to register domain
>> names "owned" by independent organizations. Real-world examples of
>> these points are ".com", ".org", ".us", and ".gov.uk". Names at
>> which such registrations occur are called "Public Suffix Domains
>> (PSDs)", and a registration consists of a label selected by the
>> registrant to which a desirable PSD is appended. For example,
>> "ietf.org" is a registered domain name, and ".org" is its PSD.
I would chop a lot of that out. If people don't already know how DNS names
work, they're not going to be able to use DMARC.
>My thought is to add text based on the above mail to the paragraph:
>
>PSDs are important to DMARC because subdomains of a PSD are different
>organizations and subdomains of non-PSDs are part of the same organization.
That seems OK.
R's,
John
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