Registro DMARC
v=spf1 -all

Registro IPv4
host: cn.com
class: IN
ttl: 3253
type: A
ip: 54.153.56.183

Servidores DNS Principal (mname) y Secundario (rname)
host: cn.com
class: IN
ttl: 3253
type: SOA
mname: ns0.centralnic.net
rname: hostmaster.centralnic.net
serial: 3000563769
refresh: 900
retry: 1800
expire: 6048000
minimum-ttl: 3600

Servidor de Correo
host: cn.com
class: IN
ttl: 60
type: MX
pri: 0
target: 

Información TXT
host: cn.com
class: IN
ttl: 553
type: TXT
txt: v=spf1 -all
entries: Array