mail.neicon.ru has no NS records.
NS records for this zone are defined at neicon.ru.
NS records for this zone are defined at neicon.ru.
Question and response
Question
dig mail.neicon.ru. NS
Answer
The response has no answer records.
Authority
neicon.ru. 3600 SOA ns1.dns2b.ru. hostmaster.neicon.ru. 2026031202 10800 3600 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0