Servidores DNS Principal (mname) y Secundario (rname)
host: contents-jp.com
class: IN
ttl: 21600
type: SOA
mname: ns06.mesh.ad.jp
rname: hostmaster.mesh.ad.jp
serial: 2021021200
refresh: 10800
retry: 1800
expire: 3600000
minimum-ttl: 600

Servidor de Correo
host: contents-jp.com
class: IN
ttl: 21600
type: MX
pri: 10
target: bgmgate1.biglobe.ne.jp

Servidor de Correo
host: contents-jp.com
class: IN
ttl: 21600
type: MX
pri: 10
target: bgmgate2.biglobe.ne.jp