mail.extech.vn - robtex.com

mail.extech.vn

DNSSEC⚠️ Not signed
A103.110.84.187🇻🇳 AZDIGI-AS-VN103.110.84.0/22 VPDD-AZDIGI-VN VPDD-AZDIGI-VN

extech.vn

DNSSEC⚠️ Not signed
A103.110.84.187🇻🇳 AZDIGI-AS-VN103.110.84.0/22 VPDD-AZDIGI-VN VPDD-AZDIGI-VN
NSns3.vinahost.vn ⭐
NSns4.vinahost.vn
MXmail.extech.vn ⭐
TXTv=spf1 a mx ip4:125.212.217.204 ~all
SOAns3.vinahost.vnhostmaster@extech.vn 2025-11-21 #5

MX for

extech.vn

Same first word

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DNS History

3 records (1 active, 2 former)

20162017201820192020202120222023202420252026A103.110.84.187120.72.98.109125.212.217.107
●A103.110.84.1872026-02-18 → 2026-05-13 · 3 obs
○ 2016-06-30 18:58:20
● 2026-02-18 17:06:24
● 2026-05-13 05:12:50
○A120.72.98.1092015-01-19 → 2016-01-31 · 4 obs
● 2015-01-19 05:29:54
● 2016-01-31 14:38:48
○ 2016-06-30 18:58:20
○ 2026-05-13 05:12:50
○A125.212.217.1072016-06-30 → 2016-06-30 · 4 obs
○ 2016-01-31 14:38:48
● 2016-06-30 18:58:20
○ 2026-02-18 17:06:24
○ 2026-05-13 05:12:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vnc.dns-servers.vn, b.dns-servers.vn, g.dns-servers.vn, a.dns-servers.vn...-
extech.vnns3.vinahost.vn, ns4.vinahost.vn2 records

✅ Authoritative Response

Server:123.30.139.119

NS records: ns3.vinahost.vn, ns4.vinahost.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for extech.vn (unsigned zone)

⏱️ Timing

Total: 1586ms | Queries: -

📄 Records

TypeCountSample Data
A1103.110.84.187

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns3.vinahost.vn, ns4.vinahost.vn)

Analysis

Mail Server Role

mail.extech.vn acts as a mail server for extech.vn.

IP Addresses

mail.extech.vn points to a single IP number: 103.110.84.187.

Other host names, for example extech.vn, mail.tenmars.com.vn, tenmars.com.vn and www.extech.vn share IP numbers with mail.extech.vn.