Registro DMARC
v=spf1 redirect=_spf.google.com

Servidor de Correo
host: unified-notifications.bounces.google.com
class: IN
ttl: 21600
type: MX
pri: 10
target: alt2.gmr-smtp-in.l.google.com

Servidor de Correo
host: unified-notifications.bounces.google.com
class: IN
ttl: 21600
type: MX
pri: 10
target: alt1.gmr-smtp-in.l.google.com

Servidor de Correo
host: unified-notifications.bounces.google.com
class: IN
ttl: 21600
type: MX
pri: 5
target: gmr-smtp-in.l.google.com

Información TXT
host: unified-notifications.bounces.google.com
class: IN
ttl: 21600
type: TXT
txt: v=spf1 redirect=_spf.google.com
entries: Array