mx.cqqj.net has no CNAME records.
Question and response
Question
dig mx.cqqj.net. NS
Answer
The response has no answer records.
Authority
cqqj.net. 3538 SOA dns.cqqj.net. hostmaster.cqqj.net. 1140805300 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0