Registro DMARC
v=spf1 include:spf.messagingengine.com ?all

Servidores DNS Principal (mname) y Secundario (rname)
host: herrlevin.de
class: IN
ttl: 3600
type: SOA
mname: root-dns.netcup.net
rname: dnsadmin.netcup.net
serial: 2024090754
refresh: 3600
retry: 3600
expire: 3600
minimum-ttl: 3600

Servidor de Correo
host: herrlevin.de
class: IN
ttl: 3600
type: MX
pri: 10
target: in1-smtp.messagingengine.com

Servidor de Correo
host: herrlevin.de
class: IN
ttl: 3600
type: MX
pri: 20
target: in2-smtp.messagingengine.com

Información TXT
host: herrlevin.de
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:spf.messagingengine.com ?all
entries: Array