mail2.netronixcorp.com has no CNAME records.
Question and response
Question
dig mail2.netronixcorp.com. NS
Answer
The response has no answer records.
Authority
netronixcorp.com. 600 SOA pdns03.domaincontrol.com. dns.jomax.net. 2025120807 28800 7200 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0