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: 273
type: SOA
mname: doug.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2419386858
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: vallen.info
class: IN
ttl: 300
type: MX
pri: 1
target: 

Información TXT
host: vallen.info
class: IN
ttl: 300
type: TXT
txt: v=spf1 -all
entries: