Registro DMARC
v=spf1 mx ip4:109.123.202.0/24 ~all

Registro IPv4
host: libimseti.cz
class: IN
ttl: 567
type: A
ip: 109.123.202.46

Servidores DNS Principal (mname) y Secundario (rname)
host: libimseti.cz
class: IN
ttl: 1752
type: SOA
mname: ns.sic.cz
rname: hostmaster.sic.cz
serial: 2026021010
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: libimseti.cz
class: IN
ttl: 852
type: MX
pri: 10
target: mail.libimseti.cz

Información TXT
host: libimseti.cz
class: IN
ttl: 253
type: TXT
txt: v=spf1 mx ip4:109.123.202.0/24 ~all
entries: Array