mail.rtech.vn - robtex.com

mail.rtech.vn

CNAMEpro21.emailserver.vn
DNSSEC⚠️ Not signed
A103.110.129.121🇻🇳 AXYS-VN103.110.128.0/23
PTRpro21.emailserver.vn

rtech.vn

DNSSEC⚠️ Not signed
A203.171.31.120🇻🇳 CMC-1203.171.31.0/24 CMCTELECOM-VN
NSns1.matbao.vn ⭐
NSns2.matbao.vn
MXpro21.emailserver.vn ⭐
TXTMS=ms97934163
TXTv=spf1 mx include:emailserver.vn include:spf.protection.outlook.com -all
SOAns1.matbao.vnadmin@matbao.com 2026-02-27 #2

Previously MX for

rtech.vn

Same first word

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mail.chips.jp
mail.info
mail.simplesite.com
mail.gw
mail.tv
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mail.ilovecollege.info
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DNS History

4 records (1 active, 3 former)

20162017201820192020202120222023202420252026A103.15.48.6123.30.108.186222.255.237.80CNAMEpro21.emailserver.vn
○A103.15.48.62016-07-20 → 2016-07-20 · 4 obs
○ 2016-02-10 10:17:06
● 2016-07-20 23:56:06
○ 2026-02-17 15:23:58
○ 2026-05-10 05:00:08
○A123.30.108.1862015-10-09 → 2015-10-09 · 3 obs
● 2015-10-09 04:45:34
○ 2015-12-17 02:06:02
○ 2026-05-10 05:00:08
○A222.255.237.802015-12-17 → 2016-02-10 · 5 obs
○ 2015-10-09 04:45:34
● 2015-12-17 02:06:02
● 2016-02-10 10:17:06
○ 2016-07-20 23:56:06
○ 2026-05-10 05:00:08
●CNAMEpro21.emailserver.vn2026-02-17 → 2026-05-10 · 2 obs
● 2026-02-17 15:23:58
● 2026-05-10 05:00:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vng.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, h.dns-servers.vn...-
rtech.vnns1.matbao.vn, ns2.matbao.vn2 records

✅ Authoritative Response

Server:13.250.228.99

NS records: ns1.matbao.vn, ns2.matbao.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rtech.vn (unsigned zone)

⏱️ Timing

Total: 739ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1pro21.emailserver.vn

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.matbao.vn, ns1.matbao.vn)

Analysis

IP Addresses

mail.rtech.vn resolves to a single IP address: 103.110.129.121.

Other host names, for instance pro21.emailserver.vn, share IP numbers with mail.rtech.vn.