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 4 failed authentication events, accounting for 7 messages. Activity spans from June 2, 2026 to July 9, 2026, with peak volume in June 2026 (5 events). The top countries by failure volume are France (100%). The most active source IP from this network includes 88.141.29.234 (6 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 1-4 of 4 failures, affecting 7 messages
Countries