Registro DMARC
v=DMARC1; p=quarantine

Registro IPv4
host: knihovna-se.cz
class: IN
ttl: 1800
type: A
ip: 185.129.138.40

Servidores DNS Principal (mname) y Secundario (rname)
host: knihovna-se.cz
class: IN
ttl: 3600
type: SOA
mname: ns.forpsi.net
rname: admin.forpsi.com
serial: 2025100201
refresh: 14400
retry: 3600
expire: 2592000
minimum-ttl: 3600

Servidor de Correo
host: knihovna-se.cz
class: IN
ttl: 1800
type: MX
pri: 10
target: mxavas.forpsi.com

Información TXT
host: knihovna-se.cz
class: IN
ttl: 1800
type: TXT
txt: v=spf1 a mx include:clavius.cz include:_spf.forpsi.com ~all
entries: Array