Registro DMARC
v=spf1 -all

Registro IPv4
host: cetb.org
class: IN
ttl: 600
type: A
ip: 172.239.193.153

Registro IPv4
host: cetb.org
class: IN
ttl: 600
type: A
ip: 172.239.194.103

Registro IPv4
host: cetb.org
class: IN
ttl: 600
type: A
ip: 172.236.108.16

Servidores DNS Principal (mname) y Secundario (rname)
host: cetb.org
class: IN
ttl: 12175
type: SOA
mname: ns1.parklogic.com
rname: hostmaster.cetb.org
serial: 2019102301
refresh: 3600
retry: 7200
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: cetb.org
class: IN
ttl: 12175
type: MX
pri: 20
target: mx156.hostedmxserver.com

Información TXT
host: cetb.org
class: IN
ttl: 12175
type: TXT
txt: v=spf1 -all
entries: Array