Registro DMARC
v=DMARC1; p=reject; rua=mailto:d@rua.agari.com; ruf=mailto:d@ruf.agari.com;

Registro IPv4
host: iphone.com
class: IN
ttl: 3600
type: A
ip: 17.253.142.4

Servidores DNS Principal (mname) y Secundario (rname)
host: iphone.com
class: IN
ttl: 21600
type: SOA
mname: usmsc2-extxfr-001.dns.apple.com
rname: hostmaster.apple.com
serial: 2010073071
refresh: 7200
retry: 1800
expire: 2592000
minimum-ttl: 1800

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

Información TXT
host: iphone.com
class: IN
ttl: 21600
type: TXT
txt: v=spf1 -all
entries: Array