Registro DMARC
v=DMARC1; p=reject; sp=reject

Registro IPv4
host: ip-pbx.it
class: IN
ttl: 86400
type: A
ip: 185.53.177.31

Servidores DNS Principal (mname) y Secundario (rname)
host: ip-pbx.it
class: IN
ttl: 86400
type: SOA
mname: dns1.realtime.at
rname: hostmaster.realtime.at
serial: 2025080801
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: ip-pbx.it
class: IN
ttl: 21600
type: MX
pri: 10
target: 

Información TXT
host: ip-pbx.it
class: IN
ttl: 21600
type: TXT
txt: v=spf1 mx -all
entries: Array