Servidores DNS Principal (mname) y Secundario (rname)
host: cresta.us
class: IN
ttl: 1800
type: SOA
mname: dax.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2417252379
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800

Servidor de Correo
host: cresta.us
class: IN
ttl: 2969
type: MX
pri: 10
target: aspmx.l.google.com

Servidor de Correo
host: cresta.us
class: IN
ttl: 2969
type: MX
pri: 50
target: aspmx3.googlemail.com

Servidor de Correo
host: cresta.us
class: IN
ttl: 2969
type: MX
pri: 30
target: alt2.aspmx.l.google.com

Servidor de Correo
host: cresta.us
class: IN
ttl: 2969
type: MX
pri: 20
target: alt1.aspmx.l.google.com

Servidor de Correo
host: cresta.us
class: IN
ttl: 2969
type: MX
pri: 40
target: aspmx2.googlemail.com