mail.netbrasil.app.br has no NS records.
NS records for this zone are defined at netbrasil.app.br.
NS records for this zone are defined at netbrasil.app.br.
Question and response
Question
dig mail.netbrasil.app.br. NS
Answer
The response has no answer records.
Authority
netbrasil.app.br. 300 SOA ns1.netbrasil.app.br. hostmaster.netbrasil.app.br. 2026012577 14400 3600 2419200 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0