Servidores DNS Principal (mname) y Secundario (rname)
host: nbzsa.com
class: IN
ttl: 500
type: SOA
mname: ns1.myhostadmin.net
rname: dnsconct.myhostadmin.net
serial: 2018032706
refresh: 43200
retry: 300
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: nbzsa.com
class: IN
ttl: 900
type: MX
pri: 10
target: mailcdn.21cn.com

Servidor de Correo
host: nbzsa.com
class: IN
ttl: 900
type: MX
pri: 5
target: mta-ent.21cn.com

Información TXT
host: nbzsa.com
class: IN
ttl: 900
type: TXT
txt: v=spf1 include:corp.21cn.com. -all
entries: Array