Servidores DNS Principal (mname) y Secundario (rname)
host: jnepc.com
class: IN
ttl: 3600
type: SOA
mname: 
rname: hostmaster.nameserver
serial: 19
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 5

Servidor de Correo
host: jnepc.com
class: IN
ttl: 3600
type: MX
pri: 5
target: mxbiz1.qq.com

Servidor de Correo
host: jnepc.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mxbiz2.qq.com