Registro DMARC
v=DMARC1; p=none

Registro IPv4
host: sib.edu.vn
class: IN
ttl: 300
type: A
ip: 103.42.58.102

Servidores DNS Principal (mname) y Secundario (rname)
host: sib.edu.vn
class: IN
ttl: 21600
type: SOA
mname: ns10.tgs.com.vn
rname: info.haicam.com
serial: 2025062002
refresh: 10800
retry: 3600
expire: 1209600
minimum-ttl: 10800

Servidor de Correo
host: sib.edu.vn
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.sib.edu.vn

Información TXT
host: sib.edu.vn
class: IN
ttl: 3600
type: TXT
txt: v=spf1 ip4:202.143.110.226/24 ip4:103.42.58.137/24 include:gw.cloudemail.vn -all
entries: Array