ns-sel2.axelname.RU has no MX records.
Question and response
Question
dig ns-sel2.axelname.RU. MX
Answer
The response has no answer records.
Authority
axelname.RU. 3600 SOA ns1.axelname.RU. info.axelname.RU. 2012120701 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0