mx.datameck.com has no NS records.
NS records for this zone are defined at datameck.com.
NS records for this zone are defined at datameck.com.
Question and response
Question
dig mx.datameck.com. NS
Answer
The response has no answer records.
Authority
datameck.com. 3600 SOA dns.datameck.com. hostmaster.datameck.com. 1608601374 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0