Servidores DNS Principal (mname) y Secundario (rname)
host: samjungsteel.com
class: IN
ttl: 1800
type: SOA
mname: samjungsteel.com
rname: postmaster.samjungsteel.com
serial: 20250402
refresh: 10800
retry: 3600
expire: 3600000
minimum-ttl: 43200

Servidor de Correo
host: samjungsteel.com
class: IN
ttl: 1800
type: MX
pri: 10
target: kr1-aspmx1.worksmobile.com

Servidor de Correo
host: samjungsteel.com
class: IN
ttl: 1800
type: MX
pri: 20
target: kr1-aspmx2.worksmobile.com