[ietf-dkim] New issue: Upward query vs. wildcard publication

[John L]

>>> 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.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.