Registro DMARC
v=DMARC1; p=reject; sp=reject; pct=100; rua=mailto:admin@hsystems.com

Servidores DNS Principal (mname) y Secundario (rname)
host: hsystems.com
class: IN
ttl: 3601
type: SOA
mname: dns1.registrar-servers.com
rname: hostmaster.registrar-servers.com
serial: 1791458959
refresh: 43200
retry: 3600
expire: 604800
minimum-ttl: 3601

Servidor de Correo
host: hsystems.com
class: IN
ttl: 1799
type: MX
pri: 1
target: smtp.google.com

Información TXT
host: hsystems.com
class: IN
ttl: 1799
type: TXT
txt: v=spf1 include:_spf.google.com ~all
entries: Array