mx.tulsairparts.com has no NS records.
NS records for this zone are defined at tulsairparts.com.
NS records for this zone are defined at tulsairparts.com.
Question and response
Question
dig mx.tulsairparts.com. NS
Answer
The response has no answer records.
Authority
tulsairparts.com. 3600 SOA dns.tulsairparts.com. hostmaster.tulsairparts.com. 1506654596 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0