Registro DMARC
v=DMARC1;p=none;

Servidores DNS Principal (mname) y Secundario (rname)
host: key7app.com
class: IN
ttl: 21600
type: SOA
mname: ns-cloud-d1.googledomains.com
rname: cloud-dns-hostmaster.google.com
serial: 2
refresh: 21600
retry: 3600
expire: 259200
minimum-ttl: 300

Servidor de Correo
host: key7app.com
class: IN
ttl: 3600
type: MX
pri: 10
target: 30838356.in1.mandrillapp.com

Servidor de Correo
host: key7app.com
class: IN
ttl: 3600
type: MX
pri: 20
target: 30838356.in2.mandrillapp.com

Información TXT
host: key7app.com
class: IN
ttl: 3600
type: TXT
txt: 455vqgmqdrme6e7b13nncofdhj
entries: Array

Información TXT
host: key7app.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 a mx include:spf.mandrillapp.com ~all
entries: Array

Información TXT
host: key7app.com
class: IN
ttl: 3600
type: TXT
txt: google-site-verification=tfhWATuQz2sc28TrBR4ZrTw13aue-2XW9tLuWKEiWyg
entries: Array