Servidores DNS Principal (mname) y Secundario (rname)
host: dfmc.com.cn
class: IN
ttl: 86400
type: SOA
mname: dfmc.com.cn
rname: hostmaster.dfmc.com.cn
serial: 2021111106
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 0

Servidor de Correo
host: dfmc.com.cn
class: IN
ttl: 500
type: MX
pri: 1
target: smtp.dfmc.com.cn

Información TXT
host: dfmc.com.cn
class: IN
ttl: 90
type: TXT
txt: v=spf1 a mx ip4:58.49.84.22 ip4:220.249.93.234 -all
entries: Array