ns.ncih.net has no MX records.
Question and response
Question
dig ns.ncih.net. MX
Answer
The response has no answer records.
Authority
ncih.net. 900 SOA edchm1.its.state.nc.us. hostmaster.its.nc.gov. 2011031468 10800 3600 2419200 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0