mail.cos.vn - robtex.com

mail.cos.vn

DNSSEC⚠️ Not signed
A112.78.10.46🇻🇳 ODS-AS-VN112.78.10.0/24 ODSJSC-VN
PTRmail.honeynet.vn

cos.vn

DNSSEC⚠️ Not signed
A103.232.122.36🇻🇳 VHOST-AS-VN103.232.122.0/24 VHOSTCORP-VN
NShcmc3.saigonnet.vn ⭐ ⚠️ Not in parent delegation
NShcmc4.saigonnet.vn ⚠️ Not in parent delegation
NSns1.inet.vn ⚠️ Not in zone NS records
NSns2.inet.vn ⚠️ Not in zone NS records
NSns3.inet.vn ⚠️ Not in zone NS records
MXmail.cos.vn ⭐
TXTgoogle-site-verification=ltH38fWshEaSx_cqTH1oVpCHlKV8P2CiT-QlyDrFOVg
TXTv=spf1 a:mail.cos.vn mx:cos.vn ip4:112.78.10.46 -all
SOAhcmc3.saigonnet.vnadmin@saigonnet.vn 2015-07-28 #0

MX for

cos.vn

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DNS History

1 record (1 active, 0 former)

A112.78.10.46
●A112.78.10.462026-05-08 → 2026-05-09 · 2 obs
● 2026-05-08 14:59:02
● 2026-05-09 17:41:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vnb.dns-servers.vn, a.dns-servers.vn, f.dns-servers.vn, e.dns-servers.vn...-
cos.vnns1.inet.vn, ns2.inet.vn, ns3.inet.vn3 records

✅ Authoritative Response

Server:202.92.4.253

NS records: ns1.inet.vn, ns2.inet.vn, ns3.inet.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cos.vn (unsigned zone)

⏱️ Timing

Total: 4192ms | Queries: -

📄 Records

TypeCountSample Data
A1112.78.10.46

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns2.inet.vn, ns3.inet.vn, ns1.inet.vn)

Analysis

Mail Server Role

mail.cos.vn serves as the mail server for cos.vn.

IP Addresses

mail.cos.vn points to a single IP: 112.78.10.46.

Other host names such as mail.chothongminh.com.vn, mail.honeynet.vn, mail.systems.vn and mail.3pcorp.vn share IP numbers with mail.cos.vn.