dmx1.absa.doximapps.com has no CNAME records.
Question and response
Question
dig dmx1.absa.doximapps.com. NS
Answer
The response has no answer records.
Authority
doximapps.com. 1684 SOA ivan.ns.cloudflare.com. dns.cloudflare.com. 2398586976 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0