`mail.relation-lab.jp`

DNSSEC	⚠️ Not signed
A	153.127.53.73^{🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
		PTR	`vps2.sugokura.com`

`relation-lab.jp`

	DNSSEC	⚠️ Not signed
	A	75.2.60.5^{🇺🇸 Amazon75.2.60.0/24 Prod}
	NS	`ns00.sugokura.com` ⭐
	NS	`ns01.sugokura.com`
	MX	`mail.relation-lab.jp` ⭐
	TXT	`v=spf1 +a +mx +a:vps2.sugokura.com -all`
	SOA	`ns00.sugokura.com`root@sugokura.com 2026-07-17 #2

MX for

relation-lab.jp

Same first word

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DNS History

2 records (1 active, 1 former)

○A122.211.138.422015-07-12 → 2016-05-11 · 4 obs

● 2015-07-12 07:43:56
● 2016-05-11 03:59:44
○ 2026-05-24 16:10:02
○ 2026-08-13 22:59:54

●A153.127.53.732026-05-24 → 2026-08-13 · 3 obs

○ 2016-05-11 03:59:44
● 2026-05-24 16:10:02
● 2026-08-13 22:59:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	15 records
relation-lab.jp	ns00.sugokura.com, ns01.sugokura.com	-

✅ Authoritative Response

Server:153.127.216.171

NS records: ns00.sugokura.com, ns01.sugokura.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for relation-lab.jp (unsigned zone)

⏱️ Timing

Total: 1555ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.127.53.73`

📌 Glue Records Collected

Total: 15

In-bailiwick: 15 (a.dns.jp, a.dns.jp, b.dns.jp...)

Analysis

Mail Server Role

mail.relation-lab.jp is a mail server for relation-lab.jp.

IP Addresses

mail.relation-lab.jp directs to one IP number, which is 153.127.53.73.

Among the host names that share IP numbers with mail.relation-lab.jp are vps2.sugokura.com, kygiken.com, ren-sui.com and two others.

mail.relation-lab.jp - robtex.com