Registro DMARC
v=DMARC1; p=none; rua=mailto:dmarc+664774@smartemailing.cz; fo=1

Registro IPv4
host: upol.cz
class: IN
ttl: 21600
type: A
ip: 158.194.230.160

Servidores DNS Principal (mname) y Secundario (rname)
host: upol.cz
class: IN
ttl: 21600
type: SOA
mname: raven.upol.cz
rname: petv.cvt.upol.cz
serial: 2250123058
refresh: 900
retry: 1800
expire: 3600000
minimum-ttl: 86400

Servidor de Correo
host: upol.cz
class: IN
ttl: 21600
type: MX
pri: 12801
target: ax.virusfree.cz

Servidor de Correo
host: upol.cz
class: IN
ttl: 21600
type: MX
pri: 12817
target: bx.virusfree.cz

Servidor de Correo
host: upol.cz
class: IN
ttl: 21600
type: MX
pri: 12833
target: cx.spamfree.cz

Servidor de Correo
host: upol.cz
class: IN
ttl: 21600
type: MX
pri: 12849
target: dx.spamfree.cz

Información TXT
host: upol.cz
class: IN
ttl: 21600
type: TXT
txt: 3zNARbt6ooYOB+Lzg3XaA39D3JeK4QmZ+FyeRVi9ST64p23zqvAdD8E3UVnBfWw6pa9N7/Wr8OquNBLFV+/o9Q==
entries: Array

Información TXT
host: upol.cz
class: IN
ttl: 21600
type: TXT
txt: google-site-verification=mIZoGsUJP6Pyd-4wB5ECvwKTmZRnPsjJfJPbBvZnoqM
entries: Array

Información TXT
host: upol.cz
class: IN
ttl: 21600
type: TXT
txt: v=spf1 include:_spf.google.com include:spf.protection.outlook.com ip4:158.194.0.0/16 ip6:2001:718:1401::/48 include:spf.smartemailing.cz include:spf.olc.cz ~all
entries: Array