Registro DMARC
v=spf1 include:spf.onnet21.com ~all

Registro IPv4
host: daewoo-engine.com
class: IN
ttl: 1800
type: A
ip: 112.175.50.209

Servidores DNS Principal (mname) y Secundario (rname)
host: daewoo-engine.com
class: IN
ttl: 1800
type: SOA
mname: daewoo-engine.com
rname: postmaster.daewoo-engine.com
serial: 20160927
refresh: 10800
retry: 3600
expire: 3600000
minimum-ttl: 43200

Servidor de Correo
host: daewoo-engine.com
class: IN
ttl: 1800
type: MX
pri: 10
target: gw-spam.mailwood.com

Información TXT
host: daewoo-engine.com
class: IN
ttl: 1800
type: TXT
txt: v=spf1 include:spf.onnet21.com ~all
entries: Array