ns2.centralinfo.net has no MX records.
Question and response
Question
dig ns2.centralinfo.net. MX
Answer
The response has no answer records.
Authority
centralinfo.net. 86400 SOA ns1.meganameservers.com. postmaster.meganameservers.com. 2025020113 86400 86400 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0