smtp.study.edu.vn - robtex.com

smtp.study.edu.vn

DNSSEC⚠️ Not signed
A42.119.236.233🇻🇳 FPT-AS-AP42.119.224.0/20 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi
PTRshare-236-233.megahost.vn

study.edu.vn

DNSSEC⚠️ Not signed
A42.119.236.233🇻🇳 FPT-AS-AP42.119.224.0/20 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi
NSns4.tenten.vn ⭐
NSns5.tenten.vn
NSns6.tenten.vn
MXmail.study.edu.vn ⭐
TXTv=spf1 mx a ip4:42.119.236.233 ~all
SOAns4.tenten.vnhostmaster@study.edu.vn 2025-09-24 #15

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DNS History

1 record (1 active, 0 former)

A42.119.236.233
●A42.119.236.2332026-05-01 → 2026-05-09 · 2 obs
● 2026-05-01 00:04:12
● 2026-05-09 18:41:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...-
study.edu.vnns5.tenten.vn, ns4.tenten.vn, ns6.tenten.vn-

✅ Authoritative Response

Server:103.18.7.204

NS records: ns5.tenten.vn, ns4.tenten.vn, ns6.tenten.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study.edu.vn (unsigned zone)

⏱️ Timing

Total: 1893ms | Queries: -

📄 Records

TypeCountSample Data
A142.119.236.233

Analysis

IP Addresses

smtp.study.edu.vn points to a single IP number: 42.119.236.233.

Other host names, for instance mail.study.edu.vn, share-236-233.megahost.vn, study.edu.vn, bodycraft.vn and thuoc.info.vn share IP numbers with smtp.study.edu.vn.