Registro DMARC
v=spf1 ip4:211.34.104.37 ~all

Registro IPv4
host: esmartech.co.kr
class: IN
ttl: 1800
type: A
ip: 220.73.161.15

Servidores DNS Principal (mname) y Secundario (rname)
host: esmartech.co.kr
class: IN
ttl: 1800
type: SOA
mname: esmartech.co.kr
rname: postmaster.esmartech.co.kr
serial: 20240826
refresh: 10800
retry: 3600
expire: 3600000
minimum-ttl: 43200

Servidor de Correo
host: esmartech.co.kr
class: IN
ttl: 1800
type: MX
pri: 10
target: alf1.aspmx.whoisworks.com

Servidor de Correo
host: esmartech.co.kr
class: IN
ttl: 1800
type: MX
pri: 10
target: alf2.aspmx.whoisworks.com

Servidor de Correo
host: esmartech.co.kr
class: IN
ttl: 1800
type: MX
pri: 10
target: aspmx.whoisworks.com

Información TXT
host: esmartech.co.kr
class: IN
ttl: 1800
type: TXT
txt: v=spf1 ip4:211.34.104.37 ~all
entries: Array