Registro DMARC
v=spf1 a mx include:spf.blueboard.cz -all

Registro IPv4
host: admanet.cz
class: IN
ttl: 1800
type: A
ip: 217.11.249.145

Servidores DNS Principal (mname) y Secundario (rname)
host: admanet.cz
class: IN
ttl: 3600
type: SOA
mname: ns.forpsi.net
rname: admin.forpsi.com
serial: 2025111501
refresh: 14400
retry: 3600
expire: 2592000
minimum-ttl: 3600

Servidor de Correo
host: admanet.cz
class: IN
ttl: 1800
type: MX
pri: 10
target: mx.blueboard.cz

Información TXT
host: admanet.cz
class: IN
ttl: 1800
type: TXT
txt: v=spf1 a mx include:spf.blueboard.cz -all
entries: Array