Servidores DNS Principal (mname) y Secundario (rname)
host: pdvsa.com
class: IN
ttl: 21600
type: SOA
mname: pdvsa.com
rname: naimea.pdvsa.com
serial: 2014071701
refresh: 21600
retry: 7200
expire: 2419200
minimum-ttl: 86400

Servidor de Correo
host: pdvsa.com
class: IN
ttl: 11440
type: MX
pri: 3
target: mail.pdvsa.com

Información TXT
host: pdvsa.com
class: IN
ttl: 21600
type: TXT
txt: v=spf1 a:mx1.pdvsa.com a:mx2.pdvsa.com a:mx3.pdvsa.com a:mx4.pdvsa.com a:mx5.pdvsa.com a:smtp.pdvsa.com a:smtpori.pdvsa.com ~all
entries: Array