Registro DMARC
v=spf1 include:spf.hiworks.co.kr ~all

Registro IPv4
host: livingduo.co.kr
class: IN
ttl: 1800
type: A
ip: 211.105.221.149

Servidores DNS Principal (mname) y Secundario (rname)
host: livingduo.co.kr
class: IN
ttl: 1800
type: SOA
mname: livingduo.co.kr
rname: postmaster.livingduo.co.kr
serial: 20160610
refresh: 10800
retry: 3600
expire: 3600000
minimum-ttl: 43200

Servidor de Correo
host: livingduo.co.kr
class: IN
ttl: 1800
type: MX
pri: 10
target: mailapp.hiworks.co.kr

Información TXT
host: livingduo.co.kr
class: IN
ttl: 1800
type: TXT
txt: v=spf1 include:spf.hiworks.co.kr ~all
entries: Array