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

Registro IPv4
host: gnu.ac.kr
class: IN
ttl: 21600
type: A
ip: 103.55.189.199

Servidores DNS Principal (mname) y Secundario (rname)
host: gnu.ac.kr
class: IN
ttl: 21600
type: SOA
mname: ns.gnu.ac.kr
rname: root.ns.gnu.ac.kr
serial: 2023081232
refresh: 10800
retry: 3600
expire: 2592000
minimum-ttl: 900

Servidor de Correo
host: gnu.ac.kr
class: IN
ttl: 9476
type: MX
pri: 10
target: gmx51.mailplug.com

Información TXT
host: gnu.ac.kr
class: IN
ttl: 21600
type: TXT
txt: v=spf1 ip4:202.30.55.51 ip4:202.30.55.50 ip4:202.30.55.20 ip4:202.30.55.81 ip4:203.234.59.28 mx include:_spf.google.com include:mailplug.com -all
entries: Array

Información TXT
host: gnu.ac.kr
class: IN
ttl: 21600
type: TXT
txt: google-site-verification=lRleW5J_ahkRBfX9qoC909X98OsZgcgyAVYCPo4HwaM
entries: Array

Información TXT
host: gnu.ac.kr
class: IN
ttl: 21600
type: TXT
txt: apple-domain-verification=hnqKV7YQqF3WE99n
entries: Array

Información TXT
host: gnu.ac.kr
class: IN
ttl: 21600
type: TXT
txt: google-site-verification=4HmzMMLt0KKnijP5G2C9ifTezP6l9aicm3_KgDgdM7Y
entries: Array