mx.ortonspeedandperformance.com has no NS records.
NS records for this zone are defined at ortonspeedandperformance.com.
NS records for this zone are defined at ortonspeedandperformance.com.
Question and response
Question
dig mx.ortonspeedandperformance.com. NS
Answer
The response has no answer records.
Authority
ortonspeedandperformance.com. 3600 SOA dns.ortonspeedandperformance.com. hostmaster.ortonspeedandperformance.com. 1850560903 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0