mailserver.newoeste.com.br has no NS records.
NS records for this zone are defined at newoeste.com.br.
NS records for this zone are defined at newoeste.com.br.
Question and response
Question
dig mailserver.newoeste.com.br. NS
Answer
The response has no answer records.
Authority
newoeste.com.br. 1800 SOA kayden.ns.cloudflare.com. dns.cloudflare.com. 2397105443 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0