ArchivedNo longer active, data collection ran March 2024 to September 2026|9,442 records|3,409 source IPs|138 countriesAbout this archive
Shame on you, stupid spammers..Sh4meful  DMARC Spoof Detection

Network: Tasa Lubrificantes Ltda

This page shows DMARC authentication failures originating from the Tasa Lubrificantes Ltda network. Learn more about this data.

Network Information
WHOIS Owner:
Tasa Lubrificantes Ltda
Countries:
BR
Unique IPs:
1
CIDR:
201.30.73.80/28

Analysis

This network has contributed 1 unique IP address across 1 failed authentication event, accounting for 1 message. Activity from this network was observed on August 6, 2026. The top countries by failure volume are Brazil (100%). The most active source IP from this network includes 201.30.73.84 (1 failure). A single IP dominates activity from Tasa Lubrificantes Ltda, suggesting a concentrated or persistent source rather than distributed infrastructure.

Failures Detected from this Network
Showing 1-1 of 1 failures, affecting 1 message
Date โ–ผ Source IP Country Messages
8/6/2026 201.30.73.84 BR1
Countries