Problems with zone wal-mart.com

[Hermann Strassner]

I am having problems with this zone. I am sitting inside a corporate network
and i have three DNS servers running under NT 4.0 SP6a.  If i go to them
with nslookup from my workstation i get only the authority records and the
A-records for the nameservers. nothing else. If i go to other nameservers
outside the network, i get the correct A-records, but with a short TTL of
some minutes.

Is there anything wrong with this zone?

Hermann