Shame on you, stupid spammers.. Sh4meful  DMARC Spoof Detection

Network: SERRA GERAL SOLUCOES PARA INTERNET LTDA

This page shows DMARC authentication failures originating from the SERRA GERAL SOLUCOES PARA INTERNET LTDA network. Learn more about this data.

Network Information
WHOIS Owner:
SERRA GERAL SOLUCOES PARA INTERNET LTDA
Countries:
BR
Unique IPs:
1
CIDR:
191.253.40.0/21

Analysis

This network has contributed 1 unique IP address across 1 failed authentication event, accounting for 4 messages. Activity from this network was observed on July 24, 2026. The top countries by failure volume are Brazil (100%). The most active source IP from this network includes 191.253.46.159 (1 failure). A single IP dominates activity from SERRA GERAL SOLUCOES PARA INTERNET LTDA, suggesting a concentrated or persistent source rather than distributed infrastructure.

Failures Detected from this Network
Showing 1-1 of 1 failures, affecting 4 messages
Countries