Registro DMARC
v=DMARC1; p=none; rua=mailto:nntt@cnt.es

Registro IPv4
host: cnt.es
class: IN
ttl: 900
type: A
ip: 116.203.66.73

Servidores DNS Principal (mname) y Secundario (rname)
host: cnt.es
class: IN
ttl: 3600
type: SOA
mname: ns1.cdmon.net
rname: hostmaster.cnt.es
serial: 1
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: cnt.es
class: IN
ttl: 90
type: MX
pri: 10
target: mx1.cnt.es

Información TXT
host: cnt.es
class: IN
ttl: 300
type: TXT
txt: v=spf1 include:_spf.mailersend.net include:eu.mailgun.org a mx ip4:116.203.66.73 ip4:46.4.66.248 ip4:91.107.217.140 ~all
entries: Array