smtp.samara.svrv.ru has no NS records.
NS records for this zone are defined at samara.svrv.ru.
NS records for this zone are defined at samara.svrv.ru.
Question and response
Question
dig smtp.samara.svrv.ru. NS
Answer
The response has no answer records.
Authority
samara.svrv.ru. 3600 SOA ns1.samara.svrv.ru. support.avantel.ru. 2024073105 3600 600 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0