mxaws2.rozee.pk has no CNAME records.
Question and response
Question
dig mxaws2.rozee.pk. NS
Answer
The response has no answer records.
Authority
rozee.pk. 1405 SOA greg.ns.cloudflare.com. dns.cloudflare.com. 2397329527 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0