91.244.115.236.wirenet.tv has no MX records.
Question and response
Question
dig 91.244.115.236.wirenet.tv. MX
Answer
The response has no answer records.
Authority
wirenet.tv. 900 SOA dns1.yandex.net. dns-hosting.yandex.ru. 31 900 90 86400 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0