`mail.congtyapp.vn`

	DNSSEC	⚠️ Not signed
	A	103.75.185.15^{🇻🇳 VNPT-AS-VN103.75.184.0/22 Inet software one member company limited INETSOFT-VN}

`congtyapp.vn`

	DNSSEC	⚠️ Not signed
	A	103.75.185.15^{🇻🇳 VNPT-AS-VN103.75.184.0/22 Inet software one member company limited INETSOFT-VN}
	NS	`ns-b3.tenten.vn` ⭐
	NS	`ns-b1.tenten.vn`
	NS	`ns-b2.tenten.vn`
	MX	`mail.congtyapp.vn` ⭐
	TXT	`v=spf1mxaip4:103.75.185.15~all`
	SOA	`ns-b3.tenten.vn`noreply@tenten.vn serial=1740589881

MX for

congtyapp.vn

Same first word

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DNS History

1 record (1 active, 0 former)

●A103.75.185.152026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 13:55:52
● 2026-05-11 13:31:36

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:163.44.207.21

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for congtyapp.vn (unsigned zone)

⏱️ Timing

Total: 1167ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.75.185.15`

Analysis

Mail Server Role

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

IP Addresses

mail.congtyapp.vn points to an IP address: 103.75.185.15.

other host names include autodiscover.congtyapp.vn, www.mocgia.info.vn, webdisk.congtyapp.vn, chungnhanquocgia.com and cpcalendars.congtyapp.vn; they share IP numbers with mail.congtyapp.vn.

mail.congtyapp.vn - robtex.com