Registro DMARC
v=DMARC1; p=none; rua=mailto:postmaster+rua@sandbox.cz; fo=1

Registro IPv4
host: sandbox.cz
class: IN
ttl: 3600
type: A
ip: 87.236.197.188

Servidores DNS Principal (mname) y Secundario (rname)
host: sandbox.cz
class: IN
ttl: 86400
type: SOA
mname: ns1.websupport.cz
rname: admin.websupport.cz
serial: 1733085398
refresh: 7200
retry: 2048
expire: 1048576
minimum-ttl: 2560

Servidor de Correo
host: sandbox.cz
class: IN
ttl: 600
type: MX
pri: 50
target: sandbox.cz

Información TXT
host: sandbox.cz
class: IN
ttl: 3600
type: TXT
txt: v=spf1 a ip4:89.248.241.53 ?all
entries: Array

Información TXT
host: sandbox.cz
class: IN
ttl: 3600
type: TXT
txt: google-site-verification=z7tlCnSWJxh81KCvJat3AetMXyQowQ7spjCFlgtFETE
entries: Array