Registro DMARC
v=spf1 include:_spf.daouoffice.com ~all

Registro IPv4
host: green-system.co.kr
class: IN
ttl: 464
type: A
ip: 183.111.161.176

Servidores DNS Principal (mname) y Secundario (rname)
host: green-system.co.kr
class: IN
ttl: 1800
type: SOA
mname: green-system.co.kr
rname: postmaster.green-system.co.kr
serial: 20200901
refresh: 10800
retry: 3600
expire: 3600000
minimum-ttl: 43200

Servidor de Correo
host: green-system.co.kr
class: IN
ttl: 1800
type: MX
pri: 10
target: mx2.daouoffice.com

Servidor de Correo
host: green-system.co.kr
class: IN
ttl: 1800
type: MX
pri: 5
target: mx1.daouoffice.com

Información TXT
host: green-system.co.kr
class: IN
ttl: 1800
type: TXT
txt: v=spf1 include:_spf.daouoffice.com ~all
entries: Array