Registro DMARC
v=DMARC1; p=reject; rua=mailto:postmaster@helix360.de

Servidores DNS Principal (mname) y Secundario (rname)
host: dropknox.com
class: IN
ttl: 11557
type: SOA
mname: hydrogen.ns.hetzner.com
rname: dns.hetzner.com
serial: 2026100500
refresh: 86400
retry: 10800
expire: 3600000
minimum-ttl: 3600

Servidor de Correo
host: dropknox.com
class: IN
ttl: 300
type: MX
pri: 10
target: mail.helix360.de

Información TXT
host: dropknox.com
class: IN
ttl: 300
type: TXT
txt: v=spf1 mx -all
entries: Array