Registro DMARC
v=DMARC1; p=none; aspf=r;

Registro IPv4
host: bertsch-pruefinstitut.de
class: IN
ttl: 7200
type: A
ip: 157.90.208.34

Servidores DNS Principal (mname) y Secundario (rname)
host: bertsch-pruefinstitut.de
class: IN
ttl: 7200
type: SOA
mname: ns1.your-server.de
rname: postmaster.your-server.de
serial: 2026102200
refresh: 86400
retry: 10800
expire: 3600000
minimum-ttl: 3600

Servidor de Correo
host: bertsch-pruefinstitut.de
class: IN
ttl: 7200
type: MX
pri: 10
target: h818mail.nshosting.biz

Información TXT
host: bertsch-pruefinstitut.de
class: IN
ttl: 7200
type: TXT
txt: v=spf1 a mx include:outbound.mailhop.org include:mailgun.org ~all
entries: Array