`mail.intechsys.co.kr`

CNAME	`m83.mailplug.co.kr`
DNSSEC	⚠️ Not signed
A	121.156.118.83^{🇰🇷 KT-NET121.152.0.0/13}
		PTR	`m83.mailplug.co.kr`
MX	`m83.mailplug.co.kr` ⭐
		A	121.156.118.83^{🇰🇷 KT-NET121.152.0.0/13}
			PTR	`m83.mailplug.co.kr`
TXT	`v=spf1 mx include:mailplug.com ~all`

`intechsys.co.kr`

	DNSSEC	⚠️ Not signed
	A	112.175.184.154^{🇰🇷 KT-NET112.168.0.0/13}
	NS	`intechsys.co.kr` ⭐
	NS	`ns1.cafe24.co.kr`
	NS	`ns1.cafe24.com`
	NS	`ns2.cafe24.co.kr`
	NS	`ns2.cafe24.com`
	MX	`mx01.mailplug.com` ⭐
	MX	`mx02.mailplug.com`⁽²⁰⁾
	TXT	`v=spf1 mx include:mailplug.com ~all`
	SOA	`intechsys.co.kr`postmaster@intechsys.co.kr serial=20151120

Previously MX for

intechsys.co.kr

Same first word

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DNS History

3 records (1 active, 2 former)

○MXm83.mailplug.co.kr2017-05-07 → 2017-05-07 · 3 obs

● 2017-05-07 07:17:56
○ 2026-04-09 09:55:36
○ 2026-04-25 16:00:30

○A121.156.118.832017-05-07 → 2017-05-07 · 3 obs

● 2017-05-07 07:17:56
○ 2026-04-09 09:55:36
○ 2026-04-25 16:00:30

●CNAMEm83.mailplug.co.kr2017-05-07 → 2026-04-25 · 2 obs

● 2017-05-07 07:17:56
● 2026-04-25 16:00:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr...	-
intechsys.co.kr	ns1.cafe24.com, ns1.cafe24.co.kr, ns2.cafe24.com, ns2.cafe24.co.kr	2 records

✅ Authoritative Response

Server:112.175.247.232

NS records: ns1.cafe24.com, ns1.cafe24.co.kr, ns2.cafe24.com, ns2.cafe24.co.kr

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for intechsys.co.kr (unsigned zone)

⏱️ Timing

Total: 4463ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`m83.mailplug.co.kr`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.cafe24.co.kr, ns1.cafe24.co.kr)

Analysis

IP Addresses

mail.intechsys.co.kr resolves to one IP number: 121.156.118.83.

Other host names such as m83.mailplug.com and m83.mailplug.co.kr share IP numbers with mail.intechsys.co.kr.

Mail Servers

mail.intechsys.co.kr is handled by a single mail server, m83.mailplug.co.kr.

mail.intechsys.co.kr shares the same mail server setup as other domains, for instance flowin.org, m83.mailplug.co.kr, gamjauhak.com, ige.kr and gaon21.net.

m83.mailplug.co.kr resolves to IP 121.156.118.83.

mail.intechsys.co.kr - robtex.com