Registro DMARC
v=spf1 mx -all

Registro IPv4
host: frontera.de
class: IN
ttl: 60
type: A
ip: 88.99.107.170

Servidores DNS Principal (mname) y Secundario (rname)
host: frontera.de
class: IN
ttl: 300
type: SOA
mname: get.desec.io
rname: get.desec.io
serial: 2021107346
refresh: 86400
retry: 3600
expire: 2419200
minimum-ttl: 3600

Servidor de Correo
host: frontera.de
class: IN
ttl: 900
type: MX
pri: 10
target: mail.a4a.de

Información TXT
host: frontera.de
class: IN
ttl: 900
type: TXT
txt: v=spf1 mx -all
entries: Array

Registro IPv6
host: frontera.de
class: IN
ttl: 60
type: AAAA
ipv6: 2a01:4f8:10a:1d5c:8000::7