ns2.VPSVILLE.RU has no MX records.
Question and response
Question
dig ns2.VPSVILLE.RU. MX
Answer
The response has no answer records.
Authority
VPSVILLE.RU. 3600 SOA ns1.VPSVILLE.RU. admin.VPSVILLE.RU. 2980448937 10800 900 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0