mx.saniyyah.com has no NS records.
NS records for this zone are defined at saniyyah.com.
NS records for this zone are defined at saniyyah.com.
Question and response
Question
dig mx.saniyyah.com. NS
Answer
The response has no answer records.
Authority
saniyyah.com. 3600 SOA dns.saniyyah.com. hostmaster.saniyyah.com. 1163056589 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0