Registro DMARC
v=DMARC1; p=reject; pct=100; rua=mailto:correo@ipn.mx; ruf=mailto:dmarc_forensic@ipn.mx; fo=1

Registro IPv4
host: ipn.mx
class: IN
ttl: 3600
type: A
ip: 20.64.80.120

Servidores DNS Principal (mname) y Secundario (rname)
host: ipn.mx
class: IN
ttl: 3600
type: SOA
mname: dns1.ipn.mx
rname: tic.ipn.mx
serial: 2026102008
refresh: 10800
retry: 1800
expire: 1209600
minimum-ttl: 10800

Servidor de Correo
host: ipn.mx
class: IN
ttl: 3600
type: MX
pri: 0
target: ipn-mx.mail.protection.outlook.com