ns.asp-promotion.ru has no MX records.
Question and response
Question
dig ns.asp-promotion.ru. MX
Answer
The response has no answer records.
Authority
asp-promotion.ru. 1440 SOA ns.asp-promotion.ru. admin.asp-promotion.ru. 90220251 3600 3600 3600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0