Servidores DNS Principal (mname) y Secundario (rname)
host: Sinui.kr
class: IN
ttl: 3600
type: SOA
mname: ns1.dothome.co.kr
rname: abuse.anysecure.com
serial: 1531124483
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: Sinui.kr
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.Sinui.kr