Servidores DNS Principal (mname) y Secundario (rname)
host: rackcdn.com
class: IN
ttl: 300
type: SOA
mname: ns.rackspace.com
rname: hostmaster.rackspace.com
serial: 1737438738
refresh: 3600
retry: 300
expire: 1814400
minimum-ttl: 300

Servidor de Correo
host: rackcdn.com
class: IN
ttl: 300
type: MX
pri: 20
target: mx2.emailsrvr.com

Servidor de Correo
host: rackcdn.com
class: IN
ttl: 300
type: MX
pri: 10
target: mx1.emailsrvr.com

Información TXT
host: rackcdn.com
class: IN
ttl: 300
type: TXT
txt: _t9sqaqz5i31z03ilhspsfcybieenw6i
entries: Array