Servidores DNS Principal (mname) y Secundario (rname)
host: ank.com
class: IN
ttl: 900
type: SOA
mname: ns-1553.awsdns-02.co.uk
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Servidor de Correo
host: ank.com
class: IN
ttl: 3600
type: MX
pri: 30
target: alt2.aspmx.l.google.com

Servidor de Correo
host: ank.com
class: IN
ttl: 3600
type: MX
pri: 20
target: alt1.aspmx.l.google.com

Servidor de Correo
host: ank.com
class: IN
ttl: 3600
type: MX
pri: 10
target: aspmx.l.google.com