mx.globalngonetwork.com has no NS records.
NS records for this zone are defined at globalngonetwork.com.
NS records for this zone are defined at globalngonetwork.com.
Question and response
Question
dig mx.globalngonetwork.com. NS
Answer
The response has no answer records.
Authority
globalngonetwork.com. 3600 SOA dns.globalngonetwork.com. hostmaster.globalngonetwork.com. 1249265808 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0