Servidores DNS Principal (mname) y Secundario (rname)
host: studiof.nl
class: IN
ttl: 10764
type: SOA
mname: ns1.qsp.nl
rname: domain.qsp.nl
serial: 2021011200
refresh: 14400
retry: 1800
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: studiof.nl
class: IN
ttl: 10765
type: MX
pri: 10
target: 128.140.221.158

Servidor de Correo
host: studiof.nl
class: IN
ttl: 10765
type: MX
pri: 10
target: relay1.townqsp.nl