Registro IPv4
host: 21Rental.Co.kr
class: IN
ttl: 3600
type: A
ip: 121.126.130.235

Servidores DNS Principal (mname) y Secundario (rname)
host: 21Rental.Co.kr
class: IN
ttl: 3600
type: SOA
mname: kns1.sorriso.kr
rname: mail.sorriso.kr
serial: 2014061011
refresh: 600
retry: 7200
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: 21Rental.Co.kr
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.21Rental.Co.kr