Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@jon.cz;

Registro IPv4
host: jon.cz
class: IN
ttl: 3600
type: A
ip: 188.75.128.90

Servidores DNS Principal (mname) y Secundario (rname)
host: jon.cz
class: IN
ttl: 3600
type: SOA
mname: ns.dns4.cz
rname: hostmaster.active24.cz
serial: 2024112501
refresh: 10800
retry: 1800
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: jon.cz
class: IN
ttl: 3600
type: MX
pri: 50
target: mx.jon.cz

Información TXT
host: jon.cz
class: IN
ttl: 3600
type: TXT
txt: google-site-verification=FwlUy7dAemqH4RJzgrzPGETcEptHuEzz25v2vHX9tUo
entries: Array

Información TXT
host: jon.cz
class: IN
ttl: 3600
type: TXT
txt: v=spf1 ip4:188.75.128.0/18 a mx ~all
entries: Array