avms-prod-mail2.adaptavist.cloud has no CNAME records.
Question and response
Question
dig avms-prod-mail2.adaptavist.cloud. NS
Answer
The response has no answer records.
Authority
adaptavist.cloud. 900 SOA ns-34.awsdns-04.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0