Servidores DNS Principal (mname) y Secundario (rname)
host: bjedu.cn
class: IN
ttl: 107
type: SOA
mname: ns.bjedu.cn
rname: administrator.bjedu.gov.cn
serial: 2026070701
refresh: 600
retry: 600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: bjedu.cn
class: IN
ttl: 107
type: MX
pri: 10
target: mx.beijing.gov.cn

Información TXT
host: bjedu.cn
class: IN
ttl: 107
type: TXT
txt: v=spf1 include:spf.beijing.gov.cn -all
entries: Array