Troubles with bind resolving zip4.usps.com

[Kerry Thompson]

spork.sporkman at gmail.com said:
> This one's got me stumped.  I've had no problems resolving this on
> boxes that run dnscache locally, but my bind boxes are giving me no
> answers, nothing in the logs.
>

DNSReport is your friend:

http://www.dnsreport.com/tools/dnsreport.ch?domain=zip4.usps.com

It reports that one of your servers ( 56.0.65.232 ) isn't responding,
along with a whole list of other problems.

-- 
Kerry