Servidores DNS Principal (mname) y Secundario (rname)
host: ryujimatsuda.com
class: IN
ttl: 3327
type: SOA
mname: 01.dnsv.jp
rname: hostmaster.dnsv.jp
serial: 1393192554
refresh: 3600
retry: 900
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: ryujimatsuda.com
class: IN
ttl: 300
type: MX
pri: 10
target: mail.ryujimatsuda.com