Registro DMARC
v=DMARC1;p=none;

Registro IPv4
host: app-echo.at
class: IN
ttl: 3600
type: A
ip: 81.19.145.155

Servidores DNS Principal (mname) y Secundario (rname)
host: app-echo.at
class: IN
ttl: 21600
type: SOA
mname: ns1.world4you.at
rname: hostmaster.world4you.com
serial: 2023061603
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: app-echo.at
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.app-echo.at

Información TXT
host: app-echo.at
class: IN
ttl: 3600
type: TXT
txt: v=spf1 mx include:spf.w4ymail.at -all
entries: Array