Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:roman.lacko@skolaonline.cz,mailto:dmarc+164753@smartemailing.cz; ruf=mailto:roman.lacko@skolaonline.cz; fo=1; rf=afrf; ri=120

Registro IPv4
host: skolaonline.cz
class: IN
ttl: 300
type: A
ip: 217.16.190.61

Servidores DNS Principal (mname) y Secundario (rname)
host: skolaonline.cz
class: IN
ttl: 1800
type: SOA
mname: ns.forpsi.net
rname: admin.forpsi.com
serial: 2025101701
refresh: 14400
retry: 3600
expire: 2592000
minimum-ttl: 3600

Servidor de Correo
host: skolaonline.cz
class: IN
ttl: 300
type: MX
pri: 10
target: skolaonline-cz.mail.protection.outlook.com

Información TXT
host: skolaonline.cz
class: IN
ttl: 1800
type: TXT
txt: v=spf1 ip4:217.16.183.28 ip4:185.99.177.70 mx include:spf.protection.outlook.com include:spf.smartemailing.cz ~all
entries: Array

Información TXT
host: skolaonline.cz
class: IN
ttl: 1800
type: TXT
txt: MS=ms77994189
entries: Array

Información TXT
host: skolaonline.cz
class: IN
ttl: 1800
type: TXT
txt: MS=ms51892593
entries: Array