mx1.ch.govorit.ru has no CNAME records.
Question and response
Question
dig mx1.ch.govorit.ru. NS
Answer
The response has no answer records.
Authority
ch.govorit.ru. 1709 SOA mx1.ch.govorit.ru. support.govorit.ru. 2026021006 10800 3600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0