mail.cloud4box.ru has no NS records.
NS records for this zone are defined at cloud4box.ru.
NS records for this zone are defined at cloud4box.ru.
Question and response
Question
dig mail.cloud4box.ru. NS
Answer
The response has no answer records.
Authority
cloud4box.ru. 3600 SOA ns1.contell.ru. tech.contell.ru. 2021140737 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0