mail.knowledge-systemsinc.com - robtex.com

mail.knowledge-systemsinc.com

DNSSEC⚠️ Not signed
A103.18.6.218🇻🇳 GMO-ZCOM-AS-VN103.18.6.0/23 RUNSYSTEM-VN
PTRv103-18-6-218.tenten.vn

knowledge-systemsinc.com

DNSSEC⚠️ Not signed
A103.18.6.218🇻🇳 GMO-ZCOM-AS-VN103.18.6.0/23 RUNSYSTEM-VN
NSns-a2.tenten.vn ⭐
NSns-a1.tenten.vn
NSns-a3.tenten.vn
MXmail.knowledge-systemsinc.com ⭐
TXTv=spf1mxaip4:103.18.6.218~all
SOAns-a2.tenten.vnnoreply@tenten.vn serial=1782877056
⚠️ On DNS blocklist: tif

MX for

knowledge-systemsinc.com

Same first word

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DNS History

1 record (1 active, 0 former)

A103.18.6.218
●A103.18.6.2182026-07-31 → 2026-07-31 · 2 obs
● 2026-07-31 03:19:56
● 2026-07-31 18:17:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
knowledge-systemsinc.comns-a1.tenten.vn, ns-a2.tenten.vn, ns-a3.tenten.vn-

✅ Authoritative Response

Server:150.95.111.47

NS records: ns-a1.tenten.vn, ns-a2.tenten.vn, ns-a3.tenten.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledge-systemsinc.com (unsigned zone)

⏱️ Timing

Total: 2017ms | Queries: -

📄 Records

TypeCountSample Data
A1103.18.6.218

Analysis

Mail Server Role

knowledge-systemsinc.com uses mail.knowledge-systemsinc.com as a mail server.

IP Addresses

mail.knowledge-systemsinc.com resolves to one IP address: 103.18.6.218.

mail.aba-s.com, trcweb.trctac.com, proeagles.com and two other host names share IP numbers with mail.knowledge-systemsinc.com.