Shame on you, stupid spammers.. DMARC Spoof Detection
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DMARC Spoof Detection, Brazil

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This page shows DMARC authentication failures originating from Brazil. Learn more about this data.

Failures (Filtered)

142

IPs (Filtered)

130

Networks (Filtered)

86

Messages (Filtered)

422

Analysis

Brazil has contributed 130 unique IP addresses across 142 failed authentication events, accounting for 422 messages across 86 networks. Activity spans from April 4, 2024 to June 28, 2026. The most active networks are Claro NXT Telecomunicacoes Ltda, TELEFÔNICA BRASIL S.A, and BRISANET SERVICOS DE TELECOMUNICACOES S.A.

Failures

Showing 1-10 of 142 failures, affecting 422 messages
Date ▼ Source IP Country City Network Messages
6/28/2026 38.225.90.7 BR Brazil Lagamar COGENT-A 3
6/24/2026 177.235.154.31 BR Brazil Brasília N/A 1
6/23/2026 186.224.201.54 BR Brazil São Paulo JR & JS ENGENHARIA E COM?RCIO LTDA 3
6/22/2026 179.127.154.24 BR Brazil Frutal TCF Telecomunica??es Campo Florido Ltda 3
6/22/2026 186.250.42.78 BR Brazil Contagem N/A 3
6/22/2026 179.99.212.45 BR Brazil São Paulo TELEF?NICA BRASIL S.A 4
6/21/2026 186.232.112.90 BR Brazil Cláudio VERO S.A 3
6/21/2026 45.225.37.82 BR Brazil Belo Jardim Mundial Station 1
6/21/2026 179.63.15.99 BR Brazil Pirapora HD NET TELECOM & INFORMATICA 1
6/21/2026 177.62.1.240 BR Brazil São Paulo TELEF?NICA BRASIL S.A 1
Top Networks in Brazil