Servidores DNS Principal (mname) y Secundario (rname)
host: lden.com
class: IN
ttl: 86400
type: SOA
mname: lden.com
rname: warren.ont.com
serial: 2019022600
refresh: 14400
retry: 3600
expire: 1728000
minimum-ttl: 86400

Servidor de Correo
host: lden.com
class: IN
ttl: 86400
type: MX
pri: 20
target: d176750b.ess.barracudanetworks.com

Servidor de Correo
host: lden.com
class: IN
ttl: 86400
type: MX
pri: 10
target: d176750a.ess.barracudanetworks.com