Registro IPv4
host: 21g.co.kr
class: IN
ttl: 2016
type: A
ip: 49.238.228.120

Servidores DNS Principal (mname) y Secundario (rname)
host: 21g.co.kr
class: IN
ttl: 2017
type: SOA
mname: ns1.mireene.com
rname: root.mireene.com
serial: 2024012501
refresh: 28800
retry: 14400
expire: 3600000
minimum-ttl: 86400

Servidor de Correo
host: 21g.co.kr
class: IN
ttl: 2017
type: MX
pri: 10
target: webmail3.mireene.com

Información TXT
host: 21g.co.kr
class: IN
ttl: 2017
type: TXT
txt: v=spf1 ip4:101.79.5.17 -all
entries: Array