Servidores DNS Principal (mname) y Secundario (rname)
host: atwork.it
class: IN
ttl: 86400
type: SOA
mname: ns2.dnshostingperte.it
rname: a\.rossano.libero.it
serial: 2021101403
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 10800

Servidor de Correo
host: atwork.it
class: IN
ttl: 86400
type: MX
pri: 10
target: mta1.ilger.com