mx.thebestsandwichfranchise.com has no NS records.
NS records for this zone are defined at thebestsandwichfranchise.com.
NS records for this zone are defined at thebestsandwichfranchise.com.
Question and response
Question
dig mx.thebestsandwichfranchise.com. NS
Answer
The response has no answer records.
Authority
thebestsandwichfranchise.com. 3600 SOA dns.thebestsandwichfranchise.com. hostmaster.thebestsandwichfranchise.com. 1958136932 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0