Registro DMARC
v=DMARC1; p=reject; aspf=s; adkim=s;

Servidores DNS Principal (mname) y Secundario (rname)
host: Barrickgoldcorp.org
class: IN
ttl: 7200
type: SOA
mname: NS37.WORLDNIC.COM
rname: namehost.WORLDNIC.COM
serial: 126073016
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: Barrickgoldcorp.org
class: IN
ttl: 13669
type: MX
pri: 0
target: invalid.invalid

Información TXT
host: Barrickgoldcorp.org
class: IN
ttl: 13669
type: TXT
txt: v=spf1 -all
entries: Array