Registro DMARC
v=DMARC1; p=none

Registro IPv4
host: mdm-immo.de
class: IN
ttl: 300
type: A
ip: 91.233.84.35

Servidores DNS Principal (mname) y Secundario (rname)
host: mdm-immo.de
class: IN
ttl: 300
type: SOA
mname: ns1.w3w.de
rname: dnsmaster.prodns.de
serial: 2021012801
refresh: 14400
retry: 3600
expire: 2419200
minimum-ttl: 300

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

Información TXT
host: mdm-immo.de
class: IN
ttl: 3600
type: TXT
txt: v=spf1 a mx ip4:91.233.84.0/22 ~all
entries: Array