ns.densky.ru has no MX records.
Question and response
Question
dig ns.densky.ru. MX
Answer
The response has no answer records.
Authority
densky.ru. 86400 SOA densky.ru. den.densky.ru. 2024031720 10800 900 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0