it4smtp01.vhostingcloud.com has no CNAME records.
Question and response
Question
dig it4smtp01.vhostingcloud.com. NS
Answer
The response has no answer records.
Authority
vhostingcloud.com. 1587 SOA daisy.ns.cloudflare.com. dns.cloudflare.com. 2397262376 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0