Registro DMARC
v=DMARC1; p=reject; rua=mailto:postmaster@dpcasey.com; ruf=mailto:dmarc@dpcasey.com; fo=1; pct=100

Servidores DNS Principal (mname) y Secundario (rname)
host: dpcasey.com
class: IN
ttl: 3600
type: SOA
mname: ns10.dnsmadeeasy.com
rname: dns.dnsmadeeasy.com
serial: 1992012151
refresh: 14400
retry: 1800
expire: 1209600
minimum-ttl: 180

Servidor de Correo
host: dpcasey.com
class: IN
ttl: 3600
type: MX
pri: 0
target: mx.dpcasey.com

Información TXT
host: dpcasey.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 a:dns.dpcasey.com ~all
entries: Array