`mail.server120.opencom.kr`

DNSSEC	⚠️ Not signed
A	121.78.88.91^{🇰🇷 KINXIDC-AS-KR121.78.80.0/20 Korea Internet Neutral eXchange}
		PTR	`servera91.opencom.com`

`server120.opencom.kr`

	DNSSEC	⚠️ Not signed
	A	121.78.88.91^{🇰🇷 KINXIDC-AS-KR121.78.80.0/20 Korea Internet Neutral eXchange}
	NS	`server120.opencom.kr` ⭐
	NS	`ns.opengogo.com` ⚠️ Not in parent delegation
	NS	`ns.openhaja.com` ⚠️ Not in parent delegation
	MX	`mail.server120.opencom.kr` ⭐
	TXT	`v=spf1 ip4:121.78.88.91 ~all`
	SOA	`server120.opencom.kr`webmaster@server120.opencom.kr 2007-09-10 #5

MX for

server120.opencom.kr

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DNS History

1 record (1 active, 0 former)

●A121.78.88.912026-02-15 → 2026-07-05 · 2 obs

● 2026-02-15 12:31:54
● 2026-07-05 11:28:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	b.dns.kr, c.dns.kr, d.dns.kr, e.dns.kr...	-
opencom.kr	ns.openhaja.com, ns.opengogo.com	-

✅ Authoritative Response

Server:121.78.91.2

NS records: ns.openhaja.com, ns.opengogo.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opencom.kr (unsigned zone)

⏱️ Timing

Total: 1485ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.78.88.91`

Analysis

Mail Server Role

Mail for server120.opencom.kr is routed through the mail server mail.server120.opencom.kr.

IP Addresses

mail.server120.opencom.kr has exactly one IP address — 121.78.88.91.

kapal.or.kr, hongchunyongsi.com, kydoor.com plus two other host names have IP numbers in common with mail.server120.opencom.kr.

mail.server120.opencom.kr - robtex.com