Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; fo=1

Registro IPv4
host: serenyo.com
class: IN
ttl: 900
type: A
ip: 217.19.248.132

Servidores DNS Principal (mname) y Secundario (rname)
host: serenyo.com
class: IN
ttl: 7339
type: SOA
mname: dns1.safenames.com
rname: hostmaster.safenames.net
serial: 2024061200
refresh: 28800
retry: 1800
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: serenyo.com
class: IN
ttl: 900
type: MX
pri: 10
target: mail.idp365.net