webmail.netangels.ru has no NS records.
NS records for this zone are defined at netangels.ru.
NS records for this zone are defined at netangels.ru.
Question and response
Question
dig webmail.netangels.ru. NS
Answer
The response has no answer records.
Authority
netangels.ru. 300 SOA ns1.netangels.ru. hostmaster.netangels.ru. 1772749518 3600 1800 1209600 3600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0