Servidores DNS Principal (mname) y Secundario (rname)
host: cartotecnica-piemontese.it
class: IN
ttl: 300
type: SOA
mname: nsa1.adbtech.it
rname: root.adbtech.it
serial: 2020060403
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: cartotecnica-piemontese.it
class: IN
ttl: 300
type: MX
pri: 10
target: pmx.adbtech.it

Servidor de Correo
host: cartotecnica-piemontese.it
class: IN
ttl: 300
type: MX
pri: 20
target: pmxb.adbtech.it