Registro DMARC
v=DMARC1; p=reject

Servidores DNS Principal (mname) y Secundario (rname)
host: premiervantiv.com
class: IN
ttl: 600
type: SOA
mname: a1-66.akam.net
rname: admin.dnstinations.com
serial: 827
refresh: 10800
retry: 3600
expire: 2419200
minimum-ttl: 60

Servidor de Correo
host: premiervantiv.com
class: IN
ttl: 600
type: MX
pri: 10
target: premiervantiv.com

Información TXT
host: premiervantiv.com
class: IN
ttl: 600
type: TXT
txt: v=spf1 -all
entries: Array