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

Registro IPv4
host: fccom.co.kr
class: IN
ttl: 886
type: A
ip: 183.111.161.157

Servidores DNS Principal (mname) y Secundario (rname)
host: fccom.co.kr
class: IN
ttl: 887
type: SOA
mname: fccom.co.kr
rname: postmaster.fccom.co.kr
serial: 20200723
refresh: 10800
retry: 3600
expire: 3600000
minimum-ttl: 43200

Servidor de Correo
host: fccom.co.kr
class: IN
ttl: 888
type: MX
pri: 10
target: rwebmail-037.fmcity.com

Información TXT
host: fccom.co.kr
class: IN
ttl: 889
type: TXT
txt: v=spf1 include:spf.fmcity.com ~all
entries: Array