mail.tetsu.com.br - robtex.com

mail.tetsu.com.br

DNSSEC⚠️ Not signed
A45.239.40.173🇧🇷 PRODB45.239.40.0/23 CLARO S.A. Customer
PTRcpsitesjundiai.cloud.prodb.com.br

tetsu.com.br

DNSSEC⚠️ Not signed
A45.239.40.41🇧🇷 PRODB45.239.40.0/23 CLARO S.A. Customer
NSns1.tetsu.com.br ⭐ ⚠️ Not in parent delegation
NSns1.sitesjundiai.com.br ⚠️ Not in zone NS records
NSns2.sitesjundiai.com.br ⚠️ Not in zone NS records
NSns2.tetsu.com.br ⚠️ Not in parent delegation
MXmail.tetsu.com.br ⭐
TXTv=spf1 +a +mx +a:sitesjundiai.cloud.prodb.com.br +ip4:45.239.40.173 +ip4:45.2...
SOAns1.tetsu.com.brricardoboquino@gmail.com 2026-07-21 #1

MX for

tetsu.com.br

Same first word

mail.gl
mail.link
mail.no
mail.net.vn
mail.lib.wy.us
mail.pictures
mail.gov.kg
mail.ag
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mail.clinic
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mail.hl.cn
mail.nhs.uk
mail.hotmail
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mail.ng
mail.canon
mail.net.hk

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DNS History

2 records (1 active, 1 former)

201820192020202120222023202420252026A45.239.40.17369.162.100.34
●A45.239.40.1732026-03-18 → 2026-08-09 · 3 obs
○ 2017-01-09 21:58:36
● 2026-03-18 13:42:48
● 2026-08-09 20:21:10
○A69.162.100.342017-01-09 → 2017-01-09 · 3 obs
● 2017-01-09 21:58:36
○ 2026-03-18 13:42:48
○ 2026-08-09 20:21:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
bra.dns.br, b.dns.br, c.dns.br, d.dns.br...-
tetsu.com.brns1.sitesjundiai.com.br, ns2.sitesjundiai.com.br1 record

✅ Authoritative Response

Server:45.239.40.41

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tetsu.com.br (unsigned zone)

⏱️ Timing

Total: 3994ms | Queries: -

📄 Records

TypeCountSample Data
A145.239.40.173

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns1.sitesjundiai.com.br)

Analysis

Mail Server Role

mail.tetsu.com.br is a mail server for tetsu.com.br.

IP Addresses

mail.tetsu.com.br directs to one IP number, which is 45.239.40.173.

Among the host names that share IP numbers with mail.tetsu.com.br are utmaax.com.br, alumileste.com.br, mail.acjcasas.com.br and two others.