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

Registro IPv4
host: tfou.net
class: IN
ttl: 900
type: A
ip: 208.91.197.27

Servidores DNS Principal (mname) y Secundario (rname)
host: tfou.net
class: IN
ttl: 900
type: SOA
mname: nsa.perf1.fr
rname: technical.nameshield.net
serial: 10
refresh: 10800
retry: 3600
expire: 2592000
minimum-ttl: 900

Servidor de Correo
host: tfou.net
class: IN
ttl: 900
type: MX
pri: 10
target: p.webcom.ctmail.com