mail.gnu.kr - dns.ninja

`mail.gnu.kr`

	DNSSEC	⚠️ Not signed
	MX	`gmx51.mailplug.com` ⭐

`gnu.kr`

DNSSEC

⚠️ Not signed

Same first word

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DNS History

3 records (1 active, 2 former)

●MXgmx51.mailplug.com2026-08-04 → 2026-08-04 · 3 obs

○ 2026-04-08 02:14:10
● 2026-08-04 06:48:44
● 2026-08-04 06:48:48

○MXspam.gnu.kr2017-07-19 → 2017-07-19 · 3 obs

● 2017-07-19 00:56:50
○ 2026-04-08 02:14:10
○ 2026-08-04 06:48:48

○A203.255.1.162017-07-19 → 2026-05-10 · 6 obs

● 2017-07-19 00:56:50
○ 2026-04-08 02:14:10
○ 2026-04-15 18:29:08
● 2026-05-10 04:34:40
○ 2026-08-04 06:48:44
○ 2026-08-04 06:48:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	g.dns.kr, f.dns.kr, e.dns.kr, b.dns.kr...	-
gnu.kr	ns2.kornet.net, ns.gnu.ac.kr	-

✅ Authoritative Response

Server:211.216.50.160

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gnu.kr (unsigned zone)

⏱️ Timing

Total: 1599ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	1	`gmx51.mailplug.com (pri: 10)`

Analysis

Mail Servers

mail.gnu.kr routes its mail through a single mail server, gmx51.mailplug.com.

The mail server configuration of mail.gnu.kr is identical to that of other domains, for example mail.gsnu.ac.kr and mail.gnu.ac.kr.

At least a portion of mail.gnu.kr's mail servers are also used by other domains, for example gsnu.ac.kr.

It is common to find these mail servers paired with the mail servers zmx908.mailplug.com.