phoenix.quintex.com has no CNAME records.
Question and response
Question
dig phoenix.quintex.com. NS
Answer
The response has no answer records.
Authority
quintex.com. 3600 SOA phoenix.quintex.com. john.quintex.com. 2023126623 60 60 60 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0