hosted-by.IHC.ru has no MX records.
Question and response
Question
dig hosted-by.IHC.ru. MX
Answer
The response has no answer records.
Authority
IHC.ru. 600 SOA ns1.IHC.ru. support.IHC.ru. 2010083101 28800 7200 604800 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0