Registro IPv4
host: 13u.de
class: IN
ttl: 7200
type: A
ip: 78.47.8.7

Servidores DNS Principal (mname) y Secundario (rname)
host: 13u.de
class: IN
ttl: 7200
type: SOA
mname: ns1.your-server.de
rname: postmaster.your-server.de
serial: 2018032201
refresh: 86400
retry: 10800
expire: 3600000
minimum-ttl: 86400

Servidor de Correo
host: 13u.de
class: IN
ttl: 7200
type: MX
pri: 10
target: mail.13u.de

Información TXT
host: 13u.de
class: IN
ttl: 7200
type: TXT
txt: v=spf1 +a +mx ?all
entries: Array