Servidores DNS Principal (mname) y Secundario (rname)
host: dols.net
class: IN
ttl: 90
type: SOA
mname: ns1.nohup.it
rname: dnsadmin.nohup.it
serial: 2014050102
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: dols.net
class: IN
ttl: 90
type: MX
pri: 10
target: mx1.nohup.it

Servidor de Correo
host: dols.net
class: IN
ttl: 90
type: MX
pri: 20
target: mx2.nohup.it