Registro DMARC
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:dmarc@ft.com

Servidores DNS Principal (mname) y Secundario (rname)
host: ftgermany.com
class: IN
ttl: 900
type: SOA
mname: ns-1447.awsdns-52.org
rname: postmaster.ft.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 60

Información TXT
host: ftgermany.com
class: IN
ttl: 21600
type: TXT
txt: v=spf1 -all
entries: Array