mx2.rb7telecom.com.br - robtex.com

mx2.rb7telecom.com.br

DNSSEC⚠️ Not signed
A2804:4c40::20🇧🇷 UNSPECIFIED2804:4c40::/34
A45.234.36.20🇧🇷 UNSPECIFIED45.234.36.0/24 CLARO S.A. Customer

rb7telecom.com.br

DNSSEC🔒 Signed (DS record present)
A2804:4c40::5🇧🇷 UNSPECIFIED2804:4c40::/34
A45.234.36.5🇧🇷 UNSPECIFIED45.234.36.0/24 CLARO S.A. Customer
NSns1.rb7telecom.com.br ⭐
NSns2.rb7telecom.com.br
MXmail.rb7telecom.com.br ⭐
TXTv=spf1 a mx -all
TXTgoogle-site-verification=bYvUa8LY6o3oUw9ZNV5iZ9QALMmqiH69oTzJGXDZGLg
SOAns1.rb7telecom.com.brroot@rb7telecom.com.br 2023-11-20 #53

Previously MX for

rb7telecom.com.br

Same first word

mx2.cci.fr
mx2.me
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mx2.dev
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mx2.sp.gov.br
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m2x.alwaysdata.net
2mx.de
2mx.xyz
xm2.ru
2mx.com
xm2.it
x2m.org
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m2x.fr
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xm2.cn
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m2x.eu
2mx.cc
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2mx.net
2mx.fr
x2m.de
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xm2.us
x2m.biz
2xm.ru
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xm2.cl
x2m.com.br
m2x.ru
2mx.co.uk
2mx.at
m2x.app
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xm2.com
2mx.nl
m2x.de
x2m.cn
2mx.ro
2mx.com.br
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x2m.ru
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m2x.nl

DNS History

5 records (2 active, 3 former)

2017201820192020202120222023202420252026A2804:4c40::2045.234.36.202804:4c40::1545.234.36.1552.22.19.175
○A2804:4c40::152026-03-24 → 2026-04-13 · 2 obs
○ 2026-03-24 11:32:14
○ 2026-04-13 01:58:18
●A2804:4c40::202026-03-24 → 2026-04-13 · 3 obs
○ 2016-03-27 13:20:10
● 2026-03-24 11:32:14
● 2026-04-13 01:58:18
○A45.234.36.152026-03-24 → 2026-04-13 · 2 obs
○ 2026-03-24 11:32:14
○ 2026-04-13 01:58:18
●A45.234.36.202026-03-24 → 2026-04-13 · 3 obs
○ 2016-03-27 13:20:10
● 2026-03-24 11:32:14
● 2026-04-13 01:58:18
○A52.22.19.1752016-03-27 → 2016-03-27 · 3 obs
● 2016-03-27 13:20:10
○ 2026-03-24 11:32:14
○ 2026-04-13 01:58:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
bre.dns.br, c.dns.br, b.dns.br, a.dns.br...-
rb7telecom.com.brns2.rb7telecom.com.br, ns1.rb7telecom.com.br4 records

✅ Authoritative Response

Server:45.234.36.10

NS records: ns2.rb7telecom.com.br, ns1.rb7telecom.com.br

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at rb7telecom.com.br: Error: DNS query timeout: 45.234.36.10 for DNSKEY rb7telecom.com.br

⏱️ Timing

Total: 3677ms | Queries: -

📄 Records

TypeCountSample Data
A145.234.36.20
AAAA12804:4c40::20

📌 Glue Records Collected

Total: 4

In-bailiwick: 4 (ns1.rb7telecom.com.br, ns2.rb7telecom.com.br, ns1.rb7telecom.com.br...)

Analysis

IP Addresses

mx2.rb7telecom.com.br resolves to two IP numbers: 2804:4c40::20 and 45.234.36.20.

Other host names such as mx1.rb7telecom.com.br and 186-225-26-59.rb7telecom.com.br share IP numbers with mx2.rb7telecom.com.br.