wcarp.hosting.nic.ru has no MX records.
Question and response
Question
dig wcarp.hosting.nic.ru. MX
Answer
The response has no answer records.
Authority
hosting.nic.ru. 600 SOA zdnsb1.nic.ru. admin.hosting.nic.ru. 1756461423 1440 3600 259200 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0