mx.anokpe.com has no NS records.
NS records for this zone are defined at anokpe.com.
NS records for this zone are defined at anokpe.com.
Question and response
Question
dig mx.anokpe.com. NS
Answer
The response has no answer records.
Authority
anokpe.com. 3600 SOA dns.anokpe.com. hostmaster.anokpe.com. 1622731737 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0