mx03.whmpanels.com has no CNAME records.
Question and response
Question
dig mx03.whmpanels.com. NS
Answer
The response has no answer records.
Authority
whmpanels.com. 30 SOA ns1.romarg.com. support.wdp.ro. 2026022613 1200 7200 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0