Registro DMARC
v=DMARC1; p=quarantine; rua=mailto:it@cfi.edu.vn; ruf=mailto:it@cfi.edu.vn; fo=1;

Registro IPv4
host: cfi.edu.vn
class: IN
ttl: 21600
type: A
ip: 123.30.182.76

Servidores DNS Principal (mname) y Secundario (rname)
host: cfi.edu.vn
class: IN
ttl: 21600
type: SOA
mname: ns3.vdc3.vn
rname: vdconline.tld
serial: 2026010708
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: cfi.edu.vn
class: IN
ttl: 1683
type: MX
pri: 10
target: cfi-edu-vn.mail.protection.outlook.com

Información TXT
host: cfi.edu.vn
class: IN
ttl: 21600
type: TXT
txt: v=spf1 include:spf.protection.outlook.com -all
entries: Array