Registro DMARC
v=DMARC1; p=none; sp=none; rua=mailto:spam-reports@c21.hk

Registro IPv4
host: c21.hk
class: IN
ttl: 100
type: A
ip: 58.64.216.18

Servidores DNS Principal (mname) y Secundario (rname)
host: c21.hk
class: IN
ttl: 3600
type: SOA
mname: ns55.pointdnshere.com
rname: root.c21.hk
serial: 2023121513
refresh: 3600
retry: 3600
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: c21.hk
class: IN
ttl: 100
type: MX
pri: 10
target: mail.c21.hk

Información TXT
host: c21.hk
class: IN
ttl: 100
type: TXT
txt: v=spf1 a mx include:pointdnshere.com ~all
entries: Array

Información TXT
host: c21.hk
class: IN
ttl: 100
type: TXT
txt: google-site-verification=RHBnm30wN9bhWrABRhOByhgPIlEz2HTYPXO_3brLwnQ
entries: Array

Información TXT
host: c21.hk
class: IN
ttl: 100
type: TXT
txt: google-site-verification=8vny4-nQc64MextMecj_SZhqdbB1MyNq9XWqhWiXwa4
entries: Array