mx.ludenlives.com has no NS records.
NS records for this zone are defined at ludenlives.com.
NS records for this zone are defined at ludenlives.com.
Question and response
Question
dig mx.ludenlives.com. NS
Answer
The response has no answer records.
Authority
ludenlives.com. 3600 SOA dns.ludenlives.com. hostmaster.ludenlives.com. 1206413477 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0