Registro IPv4
host: guestdns.com
class: IN
ttl: 21600
type: A
ip: 67.228.183.231

Servidores DNS Principal (mname) y Secundario (rname)
host: guestdns.com
class: IN
ttl: 21600
type: SOA
mname: ns1.guestdns.com
rname: support.guestdns.com
serial: 2018022300
refresh: 7200
retry: 600
expire: 1728000
minimum-ttl: 43200

Servidor de Correo
host: guestdns.com
class: IN
ttl: 21600
type: MX
pri: 10
target: mail.guestdns.com