NXDOMAIN or NODATA and an authority section SOA of
foo.com. 10800 IN SOA dns-rtp2-2-l. >
postmaster.foo.com. 8004725 7200 1800 86
The problem here is that not all DNS caches return the authority record.
Maybe they should, but they don't. This means you're back to a tree walk.
Regards,
John Levine, johnl(_at_)iecc(_dot_)com, Primary Perpetrator of "The Internet for
Dummies",
Information Superhighwayman wanna-be, http://www.johnlevine.com, ex-Mayor
"More Wiener schnitzel, please", said Tom, revealingly.
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