Registro DMARC
v=DMARC1;p=quarantine;pct=25;rua=mailto:sysadmins@data-mobiles.com;pct=90; sp=none

Servidores DNS Principal (mname) y Secundario (rname)
host: ft-dm.com
class: IN
ttl: 300
type: SOA
mname: ns-1656.awsdns-15.co.uk
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: ft-dm.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 a mx ptr ip4:217.108.144.241 ip4:217.108.144.242 ip4:94.124.133.106  include:_spf.google.com ~all
entries: Array