Servidores DNS Principal (mname) y Secundario (rname)
host: joyj.com
class: IN
ttl: 600
type: SOA
mname: dns1.hichina.com
rname: hostmaster.hichina.com
serial: 2025042417
refresh: 3600
retry: 1200
expire: 86400
minimum-ttl: 600

Servidor de Correo
host: joyj.com
class: IN
ttl: 600
type: MX
pri: 15
target: mx3.qiye.aliyun.com

Servidor de Correo
host: joyj.com
class: IN
ttl: 600
type: MX
pri: 5
target: mx1.qiye.aliyun.com

Servidor de Correo
host: joyj.com
class: IN
ttl: 600
type: MX
pri: 10
target: mx2.qiye.aliyun.com