mx.kingsdomian.com has no NS records.
NS records for this zone are defined at kingsdomian.com.
NS records for this zone are defined at kingsdomian.com.
Question and response
Question
dig mx.kingsdomian.com. NS
Answer
The response has no answer records.
Authority
kingsdomian.com. 3600 SOA dns.kingsdomian.com. hostmaster.kingsdomian.com. 1436607157 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0