Servidores DNS Principal (mname) y Secundario (rname)
host: doptor.org
class: IN
ttl: 14778
type: SOA
mname: ns1.openprovider.nl
rname: dns.openprovider.eu
serial: 2026091401
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: doptor.org
class: IN
ttl: 3600
type: MX
pri: 10
target: mx1.scriptkitchen.com