mail.castplan.com - robtex.com

mail.castplan.com

DNSSEC⚠️ Not signed
A59.106.113.139🇯🇵 SAKURA-B59.106.0.0/17 (7-0/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan

castplan.com

DNSSEC⚠️ Not signed
A59.106.113.139🇯🇵 SAKURA-B59.106.0.0/17 (7-0/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan
NSns1.4stars.jp ⭐
NSns2.4stars.jp
MXmail.castplan.com ⭐
TXTv=spf1 +a +mx include:_spf.4stars.jp ~all
SOAns1.4stars.jpadmin@4stars.jp serial=1766723693

MX for

castplan.com

Same first word

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DNS History

1 record (1 active, 0 former)

20162017201820192020202120222023202420252026A59.106.113.139
●A59.106.113.1392015-05-27 → 2026-04-25 · 2 obs
● 2015-05-27 09:08:54
● 2026-04-25 18:46:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
castplan.comns1.4stars.jp, ns2.4stars.jp-

✅ Authoritative Response

Server:59.106.113.131

NS records: ns1.4stars.jp, ns2.4stars.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for castplan.com (unsigned zone)

⏱️ Timing

Total: 1051ms | Queries: -

📄 Records

TypeCountSample Data
A159.106.113.139

Analysis

Mail Server Role

mail.castplan.com handles mail for castplan.com.

IP Addresses

mail.castplan.com points to a single IP address: 59.106.113.139.

Other host names such as edsoftz.com, mail.yumemichi.jp, mail.familyshikaiin.com, mail.shingetsu-seitai.com and mail.wedding-staff.com share IPs with mail.castplan.com.