Registro DMARC
v=DMARC1;p=reject;fo=1;rua=mailto:dmarc_rua@emaildefense.proofpoint.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

Servidores DNS Principal (mname) y Secundario (rname)
host: vallen.info
class: IN
ttl: 21600
type: SOA
mname: ns10.digicertdns.com
rname: dns.digicertdns.com
serial: 2009010104
refresh: 43200
retry: 3600
expire: 1209600
minimum-ttl: 180

Servidor de Correo
host: vallen.info
class: IN
ttl: 1800
type: MX
pri: 1
target: 

Información TXT
host: vallen.info
class: IN
ttl: 1800
type: TXT
txt: v=spf1 -all
entries: Array