mail.mojsite.com has no CNAME records.
Question and response
Question
dig mail.mojsite.com. NS
Answer
The response has no answer records.
Authority
mojsite.com. 3600 SOA ns1.phg.hr. server.plus.hr. 2026030907 3600 7200 3600000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0