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

Network: SJNET TELECOMUNICACOES - EIRELI

This page shows DMARC authentication failures originating from the SJNET TELECOMUNICACOES - EIRELI network. Learn more about this data.

Network Information
WHOIS Owner:
SJNET TELECOMUNICACOES - EIRELI
Countries:
BR
Unique IPs:
1
CIDR:
177.39.156.0/22

Analysis

This network has contributed 1 unique IP address across 1 failed authentication event, accounting for 8 messages. Activity from this network was observed on August 30, 2026. The top countries by failure volume are Brazil (100%). The most active source IP from this network includes 177.39.156.138 (1 failure). A single IP dominates activity from SJNET TELECOMUNICACOES - EIRELI, suggesting a concentrated or persistent source rather than distributed infrastructure.

Failures Detected from this Network
Showing 1-1 of 1 failures, affecting 8 messages
Countries