Registro DMARC
v=spf1 a mx include:gransy.com

Servidores DNS Principal (mname) y Secundario (rname)
host: facedrop.com
class: IN
ttl: 1800
type: SOA
mname: ns.gransy.com
rname: root.gransy.com
serial: 2723791628
refresh: 86400
retry: 900
expire: 1209600
minimum-ttl: 1800

Servidor de Correo
host: facedrop.com
class: IN
ttl: 900
type: MX
pri: 10
target: mail.facedrop.com

Información TXT
host: facedrop.com
class: IN
ttl: 1800
type: TXT
txt: v=spf1 a mx include:gransy.com
entries: Array