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

Network: MUNDIVOX DO BRASIL LTDA

This page shows DMARC authentication failures originating from the MUNDIVOX DO BRASIL LTDA network. Learn more about this data.

Network Information
WHOIS Owner:
MUNDIVOX DO BRASIL LTDA
Countries:
BR
Unique IPs:
3
CIDRs:
200.142.112.0/20, 200.142.96.0/20

Analysis

This network has contributed 3 unique IP addresses across 4 failed authentication events, accounting for 9 messages. Activity spans from January 20, 2026 to June 20, 2026, with peak volume in June 2026 (3 events). The top countries by failure volume are Brazil (100%). The most active source IPs from this network include 200.142.101.197 (2 failures), 200.142.103.108 (1 failure), 200.142.119.114 (1 failure). Failures from MUNDIVOX DO BRASIL LTDA are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.

Failures Detected from this Network
Showing 1-4 of 4 failures, affecting 9 messages
Countries