`mailbox01.topserver.vn`

DNSSEC	⚠️ Not signed
A	124.158.5.75^{🇻🇳 CMC-2124.158.5.0/24 CMCTELECOM-VN}
		PTR	`mail.topserver.vn`
MX	`mailbox01.topserver.vn` ⭐
		A	124.158.5.75^{🇻🇳 CMC-2124.158.5.0/24 CMCTELECOM-VN}
			PTR	`mail.topserver.vn`
TXT	`v=spf1 a ip4:124.158.5.75 ip4:124.158.5.74 -all`

`topserver.vn`

	DNSSEC	⚠️ Not signed
	A	124.158.5.69^{🇻🇳 CMC-2124.158.5.0/24 CMCTELECOM-VN}
	NS	`ns-b3.tenten.vn` ⭐
	NS	`ns-b1.tenten.vn`
	NS	`ns-b2.tenten.vn`
	MX	`gw02.gcn.vn` ⭐
	TXT	`google-site-verification=my9yQtAY6mCzrvgoxHyC7WoFZ7TOlhwlR1K_hu58MBI`
	TXT	`v=spf1 a ip4:124.158.5.75 ip4:124.158.5.74 -all`
	SOA	`ns-b3.tenten.vn`noreply@tenten.vn serial=1774611733

MX for

mailbox01.topserver.vn

Same first word

mailbox01.com

DNS History

2 records (2 active, 0 former)

●MXmailbox01.topserver.vn2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 09:50:24
● 2026-05-10 10:47:34

●A124.158.5.752026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 09:50:24
● 2026-05-10 10:47:34

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:137.59.104.67

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for topserver.vn (unsigned zone)

⏱️ Timing

Total: 2057ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`124.158.5.75`
MX	1	`mailbox01.topserver.vn (pri: 10)`
TXT	1	`v=spf1 a ip4:124.158.5.75 ip4:124.158.5.`

Analysis

Mail Server Role

For mailbox01.topserver.vn, the mail server is mailbox01.topserver.vn.

IP Addresses

mailbox01.topserver.vn points to a single IP number: 124.158.5.75.

Mail Servers

One mail server handles mailbox01.topserver.vn.

Host name mailbox01.topserver.vn points to IP address 124.158.5.75.

mailbox01.topserver.vn - robtex.com

mailbox01.topserver.vn

topserver.vn