Servidores DNS Principal (mname) y Secundario (rname)
host: stuttgarter.org
class: IN
ttl: 300
type: SOA
mname: ns1.vultr.com
rname: dnsadm.choopa.com
serial: 0
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: stuttgarter.org
class: IN
ttl: 300
type: MX
pri: 10
target: stuttgarter.org