Registro DMARC
v=spf1 mx a include:spf.ct8.pl -all

Registro IPv4
host: ct8.pl
class: IN
ttl: 3600
type: A
ip: 136.243.156.120

Servidores DNS Principal (mname) y Secundario (rname)
host: ct8.pl
class: IN
ttl: 1200
type: SOA
mname: ns1.admin.net.pl
rname: admin.admin.net.pl
serial: 2025130016
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 10800

Servidor de Correo
host: ct8.pl
class: IN
ttl: 3600
type: MX
pri: 10
target: mx1.ct8.pl

Información TXT
host: ct8.pl
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:admin.net.pl ip4:188.165.217.7/32 -all
entries: Array