ns4.NETANGELS.RU has no MX records.
Question and response
Question
dig ns4.NETANGELS.RU. MX
Answer
The response has no answer records.
Authority
ns4.netangels.ru. 3600 SOA ns1.netangels.ru. info.netangels.ru. 2021112216 3600 600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0