mx.hanger69.com has no NS records.
NS records for this zone are defined at hanger69.com.
NS records for this zone are defined at hanger69.com.
Question and response
Question
dig mx.hanger69.com. NS
Answer
The response has no answer records.
Authority
hanger69.com. 3600 SOA dns.hanger69.com. hostmaster.hanger69.com. 1531463696 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0