Registro DMARC
v=DMARC1; p=none; rua=mailto:mxinfos@cdu-monheim.de; ruf=mailto:mxinfos@cdu-monheim.de; fo=0:1:d:s; adkim=s; aspf=s

Registro IPv4
host: cdu-monheim.de
class: IN
ttl: 3600
type: A
ip: 89.107.190.14

Servidores DNS Principal (mname) y Secundario (rname)
host: cdu-monheim.de
class: IN
ttl: 3600
type: SOA
mname: ns4i.nshost2.de
rname: info.isp-support.eu
serial: 2023041502
refresh: 7200
retry: 540
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: cdu-monheim.de
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.cdu-monheim.de

Información TXT
host: cdu-monheim.de
class: IN
ttl: 3600
type: TXT
txt: v=spf1 mx a ~all
entries: Array