DMARC Spoof Detection, France
Clear Clear FilterThis page shows DMARC authentication failures originating from France. Learn more about this data.
France accounts for 264 DMARC authentication failures observed by sh4meful over the observation window, sourced from 59 distinct IP addresses across 26 networks. This represents approximately 0.3% of total failure volume observed. Activity from France has declined over the last 30 days compared with the prior 30-day period. The most active source is Microsoft with 93 failures across 16 IP addresses.
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Top Networks in France
Ten most active networks sourcing DMARC failures from France:
| Network | Organization | Failures | Distinct IPs | Top City |
|---|---|---|---|---|
| MSFT | Microsoft | 93 | 16 | Marseille |
| UK-MICROSOFT-20060601 | Microsoft | 70 | 3 | Paris |
| BOUYGTEL-ISP-WIRELINE | — | 19 | 1 | Le Touvet |
| FR-ATOSNET-INFRA-114 | — | 12 | 2 | — |
| BLOC-ZP | — | 8 | 4 | Paris |
| IP2000-ADSL-BAS | — | 9 | 5 | — |
| VISION | — | 6 | 4 | — |
| OVH-PCI | — | 7 | 1 | — |
| SFR-USER-DATA | — | 6 | 1 | Marcheprime |
| NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK | — | 3 | 2 | — |
Microsoft and Microsoft together account for 60% of failure volume from this country. Distribution across many networks is consistent with commodity spoofing infrastructure operating from this geography.
Failure Activity Over Time
Peak activity was observed in the week of June 1, 2026 with 5 failures recorded. Activity in the most recent 30-day window declined sharply compared with the prior period (3 vs 8 failures).
Regional Context
Compared with peer geographies in Western Europe, France's failure volume is above the regional median. Countries in this region collectively contributed 2% of failures observed.
Failures
Showing 121-130 of 264 failures, affecting 296 messages| Date ▲ | Source IP | Country | City | Network | Messages |
|---|---|---|---|---|---|
| 7/23/2025 | FR France | Marseille | 1 | ||
| 7/23/2025 | FR France | Marseille | 1 | ||
| 7/30/2025 | FR France | 1 | |||
| 7/31/2025 | FR France | 1 | |||
| 8/6/2025 | FR France | Paris | 1 | ||
| 8/6/2025 | FR France | Paris | 1 | ||
| 8/13/2025 | FR France | Strasbourg | 1 | ||
| 8/22/2025 | FR France | Marseille | 1 | ||
| 9/2/2025 | FR France | Lauterbourg | 1 | ||
| 9/3/2025 | FR France | Paris | 1 |
What This Means
Country-level patterns don't imply that mail from France is inherently malicious. Many failures reflect misconfigured legitimate senders, forwarded messages that break authentication, or automated infrastructure operating without authorization. Domain owners investigating a specific failure should look at the source IP and network details rather than the country alone. Our DMARC guide explains how to interpret these signals in your own reports.