Servidores DNS Principal (mname) y Secundario (rname)
host: erft.de
class: IN
ttl: 3600
type: SOA
mname: dns01.bitstore.group
rname: tickets.pce-it-service.de
serial: 2020051700
refresh: 43200
retry: 7200
expire: 86400
minimum-ttl: 3600

Servidor de Correo
host: erft.de
class: IN
ttl: 3600
type: MX
pri: 30
target: mx2.pce.de

Servidor de Correo
host: erft.de
class: IN
ttl: 3600
type: MX
pri: 20
target: cruncher.pce.de