intmail.mysecurecloudhost.com has no CNAME records.
Question and response
Question
dig intmail.mysecurecloudhost.com. NS
Answer
The response has no answer records.
Authority
mysecurecloudhost.com. 551 SOA kirk.ns.cloudflare.com. dns.cloudflare.com. 2397188512 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0