Help with internal address

[David Lewis]

I've an internal network on the 10 range with one Linux box connected to the
internet and registered with internic.  It acts as my webserver as well as DNS
and mail host.  But I actually have all mail going to by NT server, which is not
connected to the internet at all.  The way I did this was to simply designate in
my zone the NT server as the primary MX.  Then, another Linux DNS server that
knows internal addresses only can resolve the address for my main DNS.

This works except that I get an error message in my log:
sysquery: findns error (NXDOMAIN) on nt01.wejit.com?

Any way to eliminate that?