mail.localnet.ua has no NS records.
NS records for this zone are defined at localnet.ua.
NS records for this zone are defined at localnet.ua.
Question and response
Question
dig mail.localnet.ua. NS
Answer
The response has no answer records.
Authority
localnet.ua. 900 SOA nsa2.srv53.net. support.dnshosting.org. 1746083959 1800 600 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0