Servidores DNS Principal (mname) y Secundario (rname)
host: ole.com
class: IN
ttl: 21600
type: SOA
mname: a.dns.terra.com
rname: sysadm.terra.com.br
serial: 2013071748
refresh: 28800
retry: 7200
expire: 2592000
minimum-ttl: 172800

Servidor de Correo
host: ole.com
class: IN
ttl: 8947
type: MX
pri: 10
target: mx.dominios.terra.es

Información TXT
host: ole.com
class: IN
ttl: 21600
type: TXT
txt: v=spf1 mx ptr:impaqm1.telefonica.net ptr:impaqm2.telefonica.net mx:mx.dominios.terra.es ip4:213.4.149.0/24 ~all
entries: Array