Registro DMARC
v=DMARC1; p=reject

Servidores DNS Principal (mname) y Secundario (rname)
host: sale.com
class: IN
ttl: 900
type: SOA
mname: ns-293.awsdns-36.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: sale.com
class: IN
ttl: 3600
type: TXT
txt: google-site-verification=DgtIGRpL3RxpYSBdltIc4kP81rMIJAHegUpeV1Ogfrw
entries: Array

Información TXT
host: sale.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1  -all
entries: Array