Registro IPv4
host: u4u.kr
class: IN
ttl: 600
type: A
ip: 125.176.139.143

Servidores DNS Principal (mname) y Secundario (rname)
host: u4u.kr
class: IN
ttl: 3600
type: SOA
mname: ns231.dnsever.com
rname: root.u4u.kr
serial: 1665570719
refresh: 86400
retry: 600
expire: 1209600
minimum-ttl: 300

Servidor de Correo
host: u4u.kr
class: IN
ttl: 600
type: MX
pri: 30
target: aspmx3.googlemail.com

Servidor de Correo
host: u4u.kr
class: IN
ttl: 600
type: MX
pri: 30
target: aspmx4.googlemail.com

Servidor de Correo
host: u4u.kr
class: IN
ttl: 600
type: MX
pri: 20
target: alt1.aspmx.l.google.com

Servidor de Correo
host: u4u.kr
class: IN
ttl: 600
type: MX
pri: 10
target: aspmx.l.google.com

Servidor de Correo
host: u4u.kr
class: IN
ttl: 600
type: MX
pri: 30
target: aspmx5.googlemail.com

Servidor de Correo
host: u4u.kr
class: IN
ttl: 600
type: MX
pri: 20
target: alt2.aspmx.l.google.com

Servidor de Correo
host: u4u.kr
class: IN
ttl: 600
type: MX
pri: 30
target: aspmx2.googlemail.com

Información TXT
host: u4u.kr
class: IN
ttl: 600
type: TXT
txt: v=spf1 a mx include:aspmx.googlemail.com include:_spf.google.com ~all
entries: Array