mx.freecnacertificationtraining.com has no NS records.
NS records for this zone are defined at freecnacertificationtraining.com.
NS records for this zone are defined at freecnacertificationtraining.com.
Question and response
Question
dig mx.freecnacertificationtraining.com. NS
Answer
The response has no answer records.
Authority
freecnacertificationtraining.com. 3600 SOA dns.freecnacertificationtraining.com. hostmaster.freecnacertificationtraining.com. 1223289890 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0