mta.DASHASENDER.RU has no NS records.
NS records for this zone are defined at DASHASENDER.RU.
NS records for this zone are defined at DASHASENDER.RU.
Question and response
Question
dig mta.DASHASENDER.RU. NS
Answer
The response has no answer records.
Authority
DASHASENDER.RU. 7200 SOA ns1.nameself.com. support.regtime.net. 1759846445 300 300 604800 7200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0