mail.gnu.ac.kr - robtex.com

mail.gnu.ac.kr

DNSSEC⚠️ Not signed
A203.255.1.16🇰🇷 GSNU-AS-KR203.255.0.0/18 Proxy-Registered Route Object by LG Dacom(AS3786)
MXgmx51.mailplug.com ⭐
TXTv=spf1 ip4:203.255.1.16 ~all

gnu.ac.kr

DNSSEC⚠️ Not signed
A103.55.189.199🇰🇷 DACOM-NET103.55.189.0/24
NSns.gnu.ac.kr ⭐
NSns2.kornet.net ⚠️ Not in zone NS records
MXzmx908.mailplug.com ⭐
TXTgoogle-site-verification=pb9t-HCREp3b7578taFJTjWbKX7rHB6BPjMXD4LhjPg
TXTgoogle-site-verification=lRleW5J_ahkRBfX9qoC909X98OsZgcgyAVYCPo4HwaM
TXT_globalsign-domain-verification=jlDcAyRuvj3lSZ5Rr7D52z_QjeunARJa-Qjeuhgm87c
TXTgoogle-site-verification=4HmzMMLt0KKnijP5G2C9ifTezP6l9aicm3_KgDgdM7Y
TXTgoogle-site-verification=03hT0knUqc6I9DqAMW_5EjSZG7GLKqLsd_ZDi4FQSYk
TXTgoogle-site-verification=CHXEHTQSaLizDORROejmmAuzHw0MeALEsar_Luq00yg
TXTv=spf1 ip4:202.30.55.51 ip4:202.30.55.50 ip4:202.30.55.20 ip4:202.30.55.81 ip...
TXT04ca422c7a0da645d6068bb2e227b1bc
TXTapple-domain-verification=hnqKV7YQqF3WE99n
TXTgoogle-site-verification=yqQyqcNMU8VuIsaO3bhh5YP7gWVlLor9QIBZEOprQ4A
TXTgoogle-site-verification=oDOx67QfnEVABkOaawytJ-9NVZcEsMRU7GOgrlTjF3E
SOAns.gnu.ac.krroot@ns.gnu.ac.kr 2023-08-14 #62
WOT: SAFE (65/100)
rank #66057 globally
rank #182 in the tld
WOT: UNKNOWN (78/100)
📈 Tranco rank: #137,385

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DNS History

3 records (2 active, 1 former)

201820192020202120222023202420252026MXgmx51.mailplug.comspam.gnu.ac.krA203.255.1.16
●MXgmx51.mailplug.com2026-04-08 → 2026-05-10 · 3 obs
○ 2017-07-27 02:55:08
● 2026-04-08 02:14:02
● 2026-05-10 10:56:42
○MXspam.gnu.ac.kr2017-07-20 → 2017-07-27 · 4 obs
● 2017-07-20 06:26:38
● 2017-07-27 02:55:08
○ 2026-04-08 02:14:02
○ 2026-05-10 10:56:42
●A203.255.1.162017-07-20 → 2026-05-10 · 2 obs
● 2017-07-20 06:26:38
● 2026-05-10 10:56:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
krb.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr...-
gnu.ac.krns.gnu.ac.kr, ns2.kornet.net1 record

✅ Authoritative Response

Server:203.255.1.26

NS records: ns.gnu.ac.kr, ns2.kornet.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gnu.ac.kr (unsigned zone)

⏱️ Timing

Total: 4587ms | Queries: -

📄 Records

TypeCountSample Data
A1203.255.1.16
MX1gmx51.mailplug.com (pri: 10)
TXT1v=spf1 ip4:203.255.1.16 ~all

📌 Glue Records Collected

Total: 1

In-bailiwick: 1 (ns.gnu.ac.kr)

Analysis

IP Addresses

mail.gnu.ac.kr resolves to one IP number: 203.255.1.16.

Other host names such as mail.gsnu.ac.kr and mail.gnu.kr share IP numbers with mail.gnu.ac.kr.

Mail Servers

mail.gnu.ac.kr is handled by a single mail server, gmx51.mailplug.com.

mail.gnu.ac.kr shares the same mail server setup as other domains, for instance mail.gsnu.ac.kr.

mail.gnu.ac.kr shares mail servers with other domains to some extent, for instance gsnu.ac.kr.

these mail servers are commonly used with the mail servers zmx908.mailplug.com.