Registro DMARC
v=DMARC1; p=none; rua=mailto:rua@dongduk.ac.kr

Registro IPv4
host: dongduk.ac.kr
class: IN
ttl: 21600
type: A
ip: 210.121.137.144

Servidores DNS Principal (mname) y Secundario (rname)
host: dongduk.ac.kr
class: IN
ttl: 21600
type: SOA
mname: ns.dongduk.ac.kr
rname: please_set_email.absolutely.nowhere
serial: 2005010770
refresh: 10800
retry: 900
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: dongduk.ac.kr
class: IN
ttl: 21600
type: MX
pri: 20
target: email.dongduk.ac.kr

Servidor de Correo
host: dongduk.ac.kr
class: IN
ttl: 21600
type: MX
pri: 30
target: mmp.dongduk.ac.kr

Información TXT
host: dongduk.ac.kr
class: IN
ttl: 86400
type: TXT
txt: v=spf1 ip4:202.20.119.43 ip4:202.20.119.23 ~all
entries: Array