Registro DMARC
v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; fo=1

Registro IPv4
host: cns.com
class: IN
ttl: 21600
type: A
ip: 165.160.13.20

Registro IPv4
host: cns.com
class: IN
ttl: 21600
type: A
ip: 165.160.15.20

Servidores DNS Principal (mname) y Secundario (rname)
host: cns.com
class: IN
ttl: 21600
type: SOA
mname: dns1.cscdns.net
rname: hostmaster.melbourneitcbs.com
serial: 2013110709
refresh: 28800
retry: 7200
expire: 1209600
minimum-ttl: 86400