Servidores DNS Principal (mname) y Secundario (rname)
host: dslab.cn
class: IN
ttl: 300
type: SOA
mname: ns1.hwclouds-dns.com
rname: zoushic.hotmail.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 300

Servidor de Correo
host: dslab.cn
class: IN
ttl: 300
type: MX
pri: 10
target: mail.dslab.cn

Información TXT
host: dslab.cn
class: IN
ttl: 600
type: TXT
txt: include:spf.mail.sohu.com ~all
entries: Array

Información TXT
host: dslab.cn
class: IN
ttl: 600
type: TXT
txt: v=spf1
entries: Array