Registro DMARC
v=DMARC1; p=none; rua=mailto:dmarc-rua@mailkit.com;

Registro IPv4
host: metro.cz
class: IN
ttl: 600
type: A
ip: 185.17.117.33

Servidores DNS Principal (mname) y Secundario (rname)
host: metro.cz
class: IN
ttl: 300
type: SOA
mname: ns.mafra.cz
rname: hostmaster.mafra.cz
serial: 2025021804
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: metro.cz
class: IN
ttl: 600
type: MX
pri: 20
target: smtp3.mafra.cz

Servidor de Correo
host: metro.cz
class: IN
ttl: 600
type: MX
pri: 20
target: smtp4.mafra.cz

Servidor de Correo
host: metro.cz
class: IN
ttl: 600
type: MX
pri: 10
target: smtp1.mafra.cz

Servidor de Correo
host: metro.cz
class: IN
ttl: 600
type: MX
pri: 10
target: smtp2.mafra.cz

Información TXT
host: metro.cz
class: IN
ttl: 600
type: TXT
txt: google-site-verification=Y3OueD2x8sgE372X0UJQR4GJ923r5S5iOjUEArVcZSk
entries: Array

Información TXT
host: metro.cz
class: IN
ttl: 600
type: TXT
txt: v=spf1 include:spf.mafra.cz include:spf.protection.outlook.com -all
entries: Array