Servidores DNS Principal (mname) y Secundario (rname)
host: 100gpsm4.com
class: IN
ttl: 7200
type: SOA
mname: ns1.100gpsm4.com
rname: itsupport.luxtera.com
serial: 2020011800
refresh: 3600
retry: 1800
expire: 604800
minimum-ttl: 7200

Servidor de Correo
host: 100gpsm4.com
class: IN
ttl: 7200
type: MX
pri: 10
target: alln-mx-01.cisco.com

Servidor de Correo
host: 100gpsm4.com
class: IN
ttl: 7200
type: MX
pri: 10
target: aer-mx-01.cisco.com

Servidor de Correo
host: 100gpsm4.com
class: IN
ttl: 7200
type: MX
pri: 10
target: rcdn-mx-01.cisco.com