pmx4.dluxe.com.ph has no CNAME records.
Question and response
Question
dig pmx4.dluxe.com.ph. NS
Answer
The response has no answer records.
Authority
dluxe.com.ph. 5529 SOA ns1.metroconnect.com.ph. sysdev.convergeict.com. 2026020809 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0