Registro IPv4
host: sigmacyb.com
class: IN
ttl: 172800
type: A
ip: 81.248.4.46

Servidores DNS Principal (mname) y Secundario (rname)
host: sigmacyb.com
class: IN
ttl: 172800
type: SOA
mname: ns3.lerelaisinternet.com
rname: root.nordnet.fr
serial: 2009101600
refresh: 21600
retry: 3600
expire: 3600000
minimum-ttl: 172800

Servidor de Correo
host: sigmacyb.com
class: IN
ttl: 172800
type: MX
pri: 20
target: SMTP2.lerelaisinternet.com

Servidor de Correo
host: sigmacyb.com
class: IN
ttl: 172800
type: MX
pri: 10
target: SMTP1.lerelaisinternet.com