cannot resolve oppedahl.com from uspto.gov domain

[Florian Weimer]

* Karen Lear:

> Beginning sometime within the past few days, uspto.gov domain cannot
> resolve oppedahl.com domain, but can resolve it from almost everywhere
> else. 

These nameservers:

dns2.oppedahl.com.      172800  IN      A       208.109.255.50
dns1.oppedahl.com.      172800  IN      A       216.69.185.50

return SERVFAIL for EDNS0 queries.  COM contains a signed delegation.
This configuration is not supported.  It seems that BIND produces
a failure even if DNSSEC validation is not enabled for the view.

-- 
Florian Weimer                <fweimer at bfk.de>
BFK edv-consulting GmbH       http://www.bfk.de/
Kriegsstraße 100              tel: +49-721-96201-1
D-76133 Karlsruhe             fax: +49-721-96201-99