mx2.axelname.ru has no CNAME records.
Question and response
Question
dig mx2.axelname.ru. NS
Answer
The response has no answer records.
Authority
axelname.ru. 300 SOA ns1.selectel.ru. support.axelname.ru. 2023050409 10800 3600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0