Registro DMARC
v=DMARC1; p=reject; rua=mailto:report@dmarc.amazon.com; ruf=mailto:report@dmarc.amazon.com

Servidores DNS Principal (mname) y Secundario (rname)
host: cloudfront.net
class: IN
ttl: 90
type: SOA
mname: ns-418.awsdns-52.com
rname: hostmaster.cloudfront.net
serial: 1377556270
refresh: 16384
retry: 2048
expire: 1048576
minimum-ttl: 60

Información TXT
host: cloudfront.net
class: IN
ttl: 1800
type: TXT
txt: v=spf1 pjm032381tyh13bhb7nx11nytjlcjc6y -all
entries: Array