mx4.cloudhostafrica.com has no CNAME records.
Question and response
Question
dig mx4.cloudhostafrica.com. NS
Answer
The response has no answer records.
Authority
cloudhostafrica.com. 3 SOA ns1.host-h.net. postmaster.cloudhostafrica.com. 20251020 86400 1800 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0