Servidores DNS Principal (mname) y Secundario (rname)
host: maruco.com.br
class: IN
ttl: 3600
type: SOA
mname: ns1-01.azure-dns.com
rname: azuredns-hostmaster.microsoft.com
serial: 1
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 300

Servidor de Correo
host: maruco.com.br
class: IN
ttl: 3600
type: MX
pri: 10
target: inbound-smtp.sa-east-1.amazonaws.com