Registro IPv4
host: rbutr.com
class: IN
ttl: 1800
type: A
ip: 192.241.199.44

Servidores DNS Principal (mname) y Secundario (rname)
host: rbutr.com
class: IN
ttl: 1800
type: SOA
mname: ns1.digitalocean.com
rname: hostmaster.rbutr.com
serial: 0
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: rbutr.com
class: IN
ttl: 1800
type: MX
pri: 1
target: mail.rbutr.com