Registro DMARC
v=DMARC1; p=reject; sp=reject

Servidores DNS Principal (mname) y Secundario (rname)
host: civil.de
class: IN
ttl: 1987
type: SOA
mname: ns.inwx.de
rname: hostmaster.inwx.de
serial: 2026062103
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: civil.de
class: IN
ttl: 3600
type: MX
pri: 0
target: 

Información TXT
host: civil.de
class: IN
ttl: 3600
type: TXT
txt: v=spf1 -all
entries: Array