`mail.simplex.io.vn`

DNSSEC	⚠️ Not signed
A	103.179.188.124^{🇻🇳 VNPT-AS-VN103.179.188.0/23 INETSOLUTION-VN}
		PTR	`103.179.188.124.cloudfly.vn`

`simplex.io.vn`

	DNSSEC	⚠️ Not signed
	A	103.179.188.124^{🇻🇳 VNPT-AS-VN103.179.188.0/23 INETSOLUTION-VN}
	NS	`ns-b3.tenten.vn` ⭐
	NS	`ns-b1.tenten.vn`
	NS	`ns-b2.tenten.vn`
	MX	`mail.simplex.io.vn` ⭐
	TXT	`v=spf1mxaip4:103.179.188.124~all`
	SOA	`ns-b3.tenten.vn`noreply@tenten.vn serial=1765008619

MX for

simplex.io.vn

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DNS History

1 record (1 active, 0 former)

●A103.179.188.1242026-05-09 → 2026-05-10 · 2 obs

● 2026-05-09 16:04:42
● 2026-05-10 10:39:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
simplex.io.vn	ns-b1.tenten.vn, ns-b2.tenten.vn, ns-b3.tenten.vn	-

✅ Authoritative Response

Server:137.59.104.67

NS records: ns-b1.tenten.vn, ns-b2.tenten.vn, ns-b3.tenten.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simplex.io.vn (unsigned zone)

⏱️ Timing

Total: 1915ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.179.188.124`

Analysis

Mail Server Role

mail.simplex.io.vn functions as a mail server for simplex.io.vn.

IP Addresses

mail.simplex.io.vn points to IP number: 103.179.188.124.

Other host names such as mail.simplex.mobi, edu.vn.simple.com.vn, longviet.edu.vn.simple.com.vn, simplex.io.vn and novita.simple.com.vn share IPs with mail.simplex.io.vn.

mail.simplex.io.vn - robtex.com