mail.PHQholding.com has no CNAME records.
Question and response
Question
dig mail.PHQholding.com. NS
Answer
The response has no answer records.
Authority
PHQholding.com. 245 SOA ns35.domaincontrol.com. dns.jomax.net. 2023100602 28800 7200 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0