Registro DMARC
v=spf1 a mx ?all

Registro IPv4
host: estrechy.cz
class: IN
ttl: 577
type: A
ip: 37.235.105.82

host: portal.estrechy.cz
class: IN
ttl: 1800
type: CNAME
target: estrechy.cz

Servidores DNS Principal (mname) y Secundario (rname)
host: estrechy.cz
class: IN
ttl: 3600
type: SOA
mname: ns.vas-hosting.cz
rname: info.vas-hosting.cz
serial: 2403191252
refresh: 28800
retry: 600
expire: 2419200
minimum-ttl: 3600

Servidor de Correo
host: estrechy.cz
class: IN
ttl: 1800
type: MX
pri: 10
target: obs06.vas-server.cz

Información TXT
host: estrechy.cz
class: IN
ttl: 1800
type: TXT
txt: v=spf1 a mx ?all
entries: Array

Registro IPv6
host: estrechy.cz
class: IN
ttl: 1800
type: AAAA
ipv6: 2a01:28:ca:112::1:987