Servidores DNS Principal (mname) y Secundario (rname)
host: dianjian.net
class: IN
ttl: 86400
type: SOA
mname: peanutmail.newpeanut.idc
rname: admin.newpeanut.idc
serial: 1440
refresh: 900
retry: 600
expire: 86400
minimum-ttl: 3600

Servidor de Correo
host: dianjian.net
class: IN
ttl: 3600
type: MX
pri: 10
target: mx.ym.163.com