Servidores DNS Principal (mname) y Secundario (rname)
host: plgrn.nl
class: IN
ttl: 300
type: SOA
mname: ns0.leaseweb.com
rname: postmaster.leaseweb.com
serial: 2026032001
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: plgrn.nl
class: IN
ttl: 21600
type: MX
pri: 10
target: mailfilter1.leaseweb.com