Registro DMARC
v=DMARC1; p=reject; pct=98;

Servidores DNS Principal (mname) y Secundario (rname)
host: mahlbridge.com
class: IN
ttl: 1800
type: SOA
mname: launch1.spaceship.net
rname: support.spaceship.com
serial: 1764362589
refresh: 43200
retry: 3600
expire: 604800
minimum-ttl: 3600

Información TXT
host: mahlbridge.com
class: IN
ttl: 1800
type: TXT
txt: v=spf1 ip4:223.252.36.194/27 include:robertburnslive.com include:spf.protection.outlook.com -all
entries: Array