mail.ngwebsolutions.net has no CNAME records.
Question and response
Question
dig mail.ngwebsolutions.net. NS
Answer
The response has no answer records.
Authority
ngwebsolutions.net. 600 SOA ns27.domaincontrol.com. dns.jomax.net. 2023091900 28800 7200 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0