mx.win-crickethub.com has no CNAME records.
Question and response
Question
dig mx.win-crickethub.com. NS
Answer
The response has no answer records.
Authority
win-crickethub.com. 3561 SOA dns.win-crickethub.com. hostmaster.win-crickethub.com. 1998017584 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0