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

Registro IPv4
host: dhec.co.kr
class: IN
ttl: 1583
type: A
ip: 183.111.161.154

Servidores DNS Principal (mname) y Secundario (rname)
host: dhec.co.kr
class: IN
ttl: 1800
type: SOA
mname: dhec.co.kr
rname: postmaster.dhec.co.kr
serial: 20141202
refresh: 10800
retry: 3600
expire: 3600000
minimum-ttl: 43200

Servidor de Correo
host: dhec.co.kr
class: IN
ttl: 1800
type: MX
pri: 10
target: rwebmail-029.fmcity.com

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