Registro DMARC
v=DMARC1; p=quarantine

Servidores DNS Principal (mname) y Secundario (rname)
host: nx5.nl
class: IN
ttl: 3600
type: SOA
mname: ns1.naamservert.nl
rname: hostmaster.naamservert.nl
serial: 2026041406
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: nx5.nl
class: IN
ttl: 6727
type: MX
pri: 10
target: mail.protonmail.ch

Servidor de Correo
host: nx5.nl
class: IN
ttl: 6727
type: MX
pri: 20
target: mailsec.protonmail.ch

Información TXT
host: nx5.nl
class: IN
ttl: 6727
type: TXT
txt: v=spf1 include:_spf.protonmail.ch ~all
entries: Array