Registro DMARC
v=DMARC1; p=quarantine

Registro IPv4
host: piaget.edu.vn
class: IN
ttl: 3600
type: A
ip: 202.92.5.23

Servidores DNS Principal (mname) y Secundario (rname)
host: piaget.edu.vn
class: IN
ttl: 3600
type: SOA
mname: ns1.matbao.vn
rname: admin.matbao.com
serial: 2026030501
refresh: 7200
retry: 300
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: piaget.edu.vn
class: IN
ttl: 3600
type: MX
pri: 10
target: piaget-edu-vn.mail.protection.outlook.com

Información TXT
host: piaget.edu.vn
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:spf.protection.outlook.com -all
entries: Array