mail.hyper.hosting has no CNAME records.
Question and response
Question
dig mail.hyper.hosting. NS
Answer
The response has no answer records.
Authority
hyper.hosting. 642 SOA bailey.ns.cloudflare.com. dns.cloudflare.com. 2396407686 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0