`mail.smartlink.com.vn`

	DNSSEC	⚠️ Not signed
	A	103.239.117.33^{🇻🇳 NAPAS-VN103.239.117.0/24}

`smartlink.com.vn`

	DNSSEC	⚠️ Not signed
	A	103.63.109.174^{🇻🇳 CMC-2103.63.109.0/24 CMCTELECOM-VN}
	NS	`vdc-hn01.vnn.vn` ⭐
	NS	`hcm-server1.vnn.vn`
	MX	`mail.smartlink.com.vn` ⭐
	TXT	`v=spf1 ipv4:103.239.119.20 -all`
	SOA	`vdc-hn01.vnn.vn`postmaster@vnn.vn 2018-08-23 #1

PTR for

125.24.30.123.in-addr.arpa

183.128.70.118.in-addr.arpa

MX for

smartlink.com.vn

Same first word

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mail.ph

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mail.gru.br

mail.gl

mail.link

mail.no

mail.net.vn

mail.lib.wy.us

mail.pictures

mail.gov.kg

mail.ag

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DNS History

2 records (1 active, 1 former)

●A103.239.117.332016-06-23 → 2026-05-12 · 3 obs

○ 2014-09-15 06:24:46
● 2016-06-23 08:06:18
● 2026-05-12 17:16:44

○A123.30.24.1252014-09-15 → 2014-09-15 · 3 obs

● 2014-09-15 06:24:46
○ 2016-06-23 08:06:18
○ 2026-05-12 17:16:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	g.dns-servers.vn, f.dns-servers.vn, a.dns-servers.vn, h.dns-servers.vn...	-
smartlink.com.vn	vdc-hn01.vnn.vn, hcm-server1.vnn.vn	-

✅ Authoritative Response

Server:203.162.0.11

NS records: vdc-hn01.vnn.vn, hcm-server1.vnn.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smartlink.com.vn (unsigned zone)

⏱️ Timing

Total: 2955ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.239.117.33`

Analysis

Mail Server Role

mail.smartlink.com.vn serves as the mail server for smartlink.com.vn.

IP Addresses

mail.smartlink.com.vn points to a single IP: 103.239.117.33.

mail.smartlink.com.vn - robtex.com