mail.ezydomain.com has no CNAME records.
Question and response
Question
dig mail.ezydomain.com. NS
Answer
The response has no answer records.
Authority
ezydomain.com. 300 SOA ns7.ezydomain.com. technical.webnic.cc. 2025091700 10000 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0