Servidores DNS Principal (mname) y Secundario (rname)
host: sehan.ac.kr
class: IN
ttl: 300
type: SOA
mname: ns.sehan.ac.kr
rname: root.ns.sehan.ac.kr
serial: 2009103115
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: sehan.ac.kr
class: IN
ttl: 300
type: MX
pri: 10
target: zmx927.mailplug.com

Información TXT
host: sehan.ac.kr
class: IN
ttl: 300
type: TXT
txt: v=spf1 mx include:mailplug.com ~all
entries: Array