mail.MYSINT.RU has no NS records.
NS records for this zone are defined at MYSINT.RU.
NS records for this zone are defined at MYSINT.RU.
Question and response
Question
dig mail.MYSINT.RU. NS
Answer
The response has no answer records.
Authority
MYSINT.RU. 10800 SOA ns1.reg.RU. hostmaster.ns1.reg.RU. 1769501548 14400 3600 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0