mail.dum.com.br - robtex.com

mail.dum.com.br

DNSSEC⚠️ Not signed
A45.175.203.123🇧🇷 AS268909-ALAICOM-TELECOM45.175.202.0/23 ALAICOM TELECOM
PTRdynamic-45-175-203-123.alaicom.net.br

dum.com.br

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:2c3b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:c3de🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.44.59Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.195.222🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSduke.ns.cloudflare.com ⭐
NSlisa.ns.cloudflare.com
MXmail.dum.com.br ⭐
TXTv=spf1 a mx ip4:45.175.203.123 include:relay.mailbaby.net ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.44.59, 172.67.195.222
IPv6 hints2606:4700:3034::6815:2c3b, 2606:4700:3036::ac43:c3de
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=206, name=cloudflare-ech.com
SOAduke.ns.cloudflare.comdns@cloudflare.com serial=2411008572

MX for

dum.com.br

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DNS History

2 records (1 active, 1 former)

201820192020202120222023202420252026A45.175.203.12367.219.145.9
●A45.175.203.1232026-02-17 → 2026-08-05 · 3 obs
○ 2017-07-15 19:00:58
● 2026-02-17 09:00:26
● 2026-08-05 08:52:06
○A67.219.145.92017-07-15 → 2017-07-15 · 3 obs
● 2017-07-15 19:00:58
○ 2026-02-17 09:00:26
○ 2026-08-05 08:52:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
bra.dns.br, b.dns.br, c.dns.br, d.dns.br...-
dum.com.brduke.ns.cloudflare.com, lisa.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.131

NS records: duke.ns.cloudflare.com, lisa.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 737ms | Queries: -

📄 Records

TypeCountSample Data
A145.175.203.123

Analysis

Mail Server Role

dum.com.br uses mail.dum.com.br as a mail server.

IP Addresses

mail.dum.com.br resolves to one IP address: 45.175.203.123.

Other hosts including mail.alaicom.com.br, alada.com.br and dynamic-45-175-203-123.alaicom.net.br share IP addresses with mail.dum.com.br.