mx2.obit.ru has no CNAME records.
Question and response
Question
dig mx2.obit.ru. NS
Answer
The response has no answer records.
Authority
obit.ru. 3148 SOA dns1.obit.ru. dns.obit.ru. 2026022201 3600 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0