Servidores DNS Principal (mname) y Secundario (rname)
host: securitybydefault.com
class: IN
ttl: 3600
type: SOA
mname: ns1.cdmon.net
rname: hostmaster.securitybydefault.com
serial: 1
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: securitybydefault.com
class: IN
ttl: 900
type: MX
pri: 20
target: ALT2.ASPMX.L.GOOGLE.com

Servidor de Correo
host: securitybydefault.com
class: IN
ttl: 900
type: MX
pri: 30
target: ASPMX2.GOOGLEMAIL.com

Servidor de Correo
host: securitybydefault.com
class: IN
ttl: 900
type: MX
pri: 30
target: ASPMX4.GOOGLEMAIL.com

Servidor de Correo
host: securitybydefault.com
class: IN
ttl: 900
type: MX
pri: 30
target: ASPMX3.GOOGLEMAIL.com

Servidor de Correo
host: securitybydefault.com
class: IN
ttl: 900
type: MX
pri: 30
target: ASPMX5.GOOGLEMAIL.com

Servidor de Correo
host: securitybydefault.com
class: IN
ttl: 900
type: MX
pri: 20
target: ALT1.ASPMX.L.GOOGLE.com

Servidor de Correo
host: securitybydefault.com
class: IN
ttl: 900
type: MX
pri: 10
target: ASPMX.L.GOOGLE.com