mail.linesys.jp - robtex.com

mail.linesys.jp

DNSSEC⚠️ Not signed
A163.43.104.221🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan

linesys.jp

DNSSEC⚠️ Not signed
A163.43.104.221🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan
NSns1.xdomain.ne.jp ⭐
NSns2.xdomain.ne.jp
NSns3.xdomain.ne.jp
MXmail.linesys.jp ⭐
TXTv=spf1 +ip4:163.43.104.221 ~all
SOAns1.xdomain.ne.jproot@xdomain.ne.jp serial=0
⚠️ On DNS blocklist: multi, popupads, pro, pro.plus, tif, ultimate

MX for

linesys.jp

Same first word

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DNS History

1 record (1 active, 0 former)

A163.43.104.221
●A163.43.104.2212026-08-07 → 2026-08-07 · 2 obs
● 2026-08-07 00:05:50
● 2026-08-07 04:36:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpc.dns.jp, e.dns.jp, a.dns.jp, h.dns.jp...-
linesys.jpns2.xdomain.ne.jp, ns1.xdomain.ne.jp, ns3.xdomain.ne.jp3 records

✅ Authoritative Response

Server:162.43.113.246

NS records: ns2.xdomain.ne.jp, ns1.xdomain.ne.jp, ns3.xdomain.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linesys.jp (unsigned zone)

⏱️ Timing

Total: 607ms | Queries: -

📄 Records

TypeCountSample Data
A1163.43.104.221

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns3.xdomain.ne.jp, ns2.xdomain.ne.jp, ns1.xdomain.ne.jp)

Analysis

Mail Server Role

Mail for linesys.jp is routed through the mail server mail.linesys.jp.

IP Addresses

mail.linesys.jp has exactly one IP address — 163.43.104.221.

Host names such as linesys.jp and www.linesys.jp share IP numbers with mail.linesys.jp.