Servidores DNS Principal (mname) y Secundario (rname)
host: etreesoft.com
class: IN
ttl: 3600
type: SOA
mname: ns1.whoisdomain.kr
rname: help.whois.co.kr
serial: 2023082201
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600

Servidor de Correo
host: etreesoft.com
class: IN
ttl: 3600
type: MX
pri: 1
target: aspmx1.dooray.com

Información TXT
host: etreesoft.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:_spf.dooray.com ~all
entries: Array