Servidores DNS Principal (mname) y Secundario (rname)
host: marbre.com
class: IN
ttl: 370335
type: SOA
mname: romeo.hebergement-discount.com
rname: sintes.hebergement-discount.com
serial: 2018071809
refresh: 43200
retry: 1800
expire: 864000
minimum-ttl: 432000

Servidor de Correo
host: marbre.com
class: IN
ttl: 432000
type: MX
pri: 10
target: mx1.nfrance.com

Servidor de Correo
host: marbre.com
class: IN
ttl: 432000
type: MX
pri: 50
target: mx2.nfrance.com

Servidor de Correo
host: marbre.com
class: IN
ttl: 432000
type: MX
pri: 100
target: mx3.nfrance.com