Domain Registration and MX Records [Was: Re: Discovering policy ]

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Do not depend upon applications not to resolve addresses for root

names, even when a convention is explicit. Depending upon root
answers to support a protocol feature unrelated to DNS is normally
considered a design mistake isn't it?

Subject line changed to reflect reality.

If this issue has strayed into the field of DNS issues, please,
let's mark it as such.

The initial thread started on the issue of domain tasting, and
perhaps it has morphed here.

- - ferg