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

Network: SFR-USER-DATA

This page shows DMARC authentication failures originating from the SFR-USER-DATA network. Learn more about this data.

Network Information
WHOIS Owner:
SFR Altice France
Countries:
FR
Unique IPs:
1
CIDR:
88.140.0.0/15

Analysis

This network has contributed 1 unique IP address across 2 failed authentication events, accounting for 5 messages. Activity spans from June 2, 2026 to June 6, 2026, with peak volume in June 2026 (4 events). The top countries by failure volume are France (100%). The most active source IP from this network includes 88.141.29.234 (4 failures). A single IP dominates activity from SFR-USER-DATA, suggesting a concentrated or persistent source rather than distributed infrastructure.

Failures Detected from this Network
Showing 1-2 of 2 failures, affecting 5 messages
Countries