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

Registro IPv4
host: ICloud.es
class: IN
ttl: 1463
type: A
ip: 17.253.142.4

Servidores DNS Principal (mname) y Secundario (rname)
host: ICloud.es
class: IN
ttl: 3094
type: SOA
mname: ns-ext-prod.jackfruit.apple.com
rname: dnscontact.apple.com
serial: 58
refresh: 7200
retry: 5400
expire: 3628800
minimum-ttl: 300

Información TXT
host: ICloud.es
class: IN
ttl: 3094
type: TXT
txt: v=spf1 -all
entries: v=spf1 -all