Registro DMARC
v=DMARC1; p=none;

Servidores DNS Principal (mname) y Secundario (rname)
host: onlymail.org
class: IN
ttl: 1800
type: SOA
mname: clarissa.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2374729210
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: onlymail.org
class: IN
ttl: 300
type: MX
pri: 1
target: smtp.google.com

Información TXT
host: onlymail.org
class: IN
ttl: 300
type: TXT
txt: google-site-verification=YZbvHY9c2TkNO6ymSRhQkz9us2mptl1OggzXxBuYXfM
entries: Array

Información TXT
host: onlymail.org
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:_spf.google.com ~all
entries: Array