ns.centric.net has no MX records.
Question and response
Question
dig ns.centric.net. MX
Answer
The response has no answer records.
Authority
centric.net. 1800 SOA ns.centric.net. admin.centric.net. 2026013001 1800 1800 1814400 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0