Registro DMARC
v=DMARC1; p=none; rua=mailto:mailauth-reports@hdcco.vn

Registro IPv4
host: hdcco.vn
class: IN
ttl: 300
type: A
ip: 116.118.48.187

Servidores DNS Principal (mname) y Secundario (rname)
host: hdcco.vn
class: IN
ttl: 3600
type: SOA
mname: ns1.zonedns.vn
rname: root.hdcco.vn
serial: 2025072101
refresh: 1200
retry: 600
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: hdcco.vn
class: IN
ttl: 300
type: MX
pri: 10
target: mail.hdcco.vn

Información TXT
host: hdcco.vn
class: IN
ttl: 300
type: TXT
txt: v=spf1 mx a ip4:103.28.39.15 include:_spf.email-nhanhoa.net –all
entries: Array