mx1.infra.agarik.com has no CNAME records.
Question and response
Question
dig mx1.infra.agarik.com. NS
Answer
The response has no answer records.
Authority
infra.agarik.com. 4935 SOA ns2.agarik.com. dns-admin.agarik.com. 2025021901 86400 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0