ns2.meganameservers.com has no MX records.
Question and response
Question
dig ns2.meganameservers.com. MX
Answer
The response has no answer records.
Authority
meganameservers.com. 86400 SOA ns1.meganameservers.com. admin.meganameservers.com. 11558 86400 3600 3600000 345600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0