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

Registro IPv4
host: 1stinjob.com
class: IN
ttl: 1800
type: A
ip: 210.114.6.180

Servidores DNS Principal (mname) y Secundario (rname)
host: 1stinjob.com
class: IN
ttl: 1800
type: SOA
mname: 1stinjob.com
rname: postmaster.1stinjob.com
serial: 20210324
refresh: 10800
retry: 3600
expire: 3600000
minimum-ttl: 43200

Servidor de Correo
host: 1stinjob.com
class: IN
ttl: 1800
type: MX
pri: 10
target: mailapp.hiworks.co.kr

Información TXT
host: 1stinjob.com
class: IN
ttl: 1800
type: TXT
txt: v=spf1 include:_spf.hiworks.co.kr ~all
entries: Array