From: "Geo." 

"John Beckett"  wrote
in message news:40028dff.22917123{at}216.144.1.254...


> The client would have to apply a fair bit of intelligence to work out the
> difference between these two responses...

NSlookup has no problem telling the difference, it responds "non
authorative" even if it gets a response from an NA server.

I should also mention that I've never seen this documented, it's just
something I have observed when tracking dns issues.

Geo.

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