mx.notification.cse360.com.br has no NS records.
NS records for this zone are defined at cse360.com.br.
NS records for this zone are defined at cse360.com.br.
Question and response
Question
dig mx.notification.cse360.com.br. NS
Answer
The response has no answer records.
Authority
cse360.com.br. 1800 SOA amalia.ns.cloudflare.com. dns.cloudflare.com. 2396738061 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0