h.mchost.ru has no MX records.
Question and response
Question
dig h.mchost.ru. MX
Answer
The response has no answer records.
Authority
h.mchost.ru. 600 SOA nserver1.mchost.ru. info.mchost.ru. 2022071601 10800 3600 172800 600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0