mail.wtinet.net has no CNAME records.
Question and response
Question
dig mail.wtinet.net. NS
Answer
The response has no answer records.
Authority
wtinet.net. 476 SOA ns1.wtinet.net. info.wiretech-inc.com. 2022080410 3600 600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0