msa.cobmail2.com.br has no NS records.
NS records for this zone are defined at cobmail2.com.br.
NS records for this zone are defined at cobmail2.com.br.
Question and response
Question
dig msa.cobmail2.com.br. NS
Answer
The response has no answer records.
Authority
cobmail2.com.br. 1800 SOA kim.ns.cloudflare.com. dns.cloudflare.com. 2395816226 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0