Shame on you, stupid spammers.. DMARC Spoof Detection

DMARC Spoof Detection, United States

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This page shows DMARC authentication failures originating from United States. Learn more about this data.

Failures (Filtered)

48,890

IPs (Filtered)

5,119

Networks (Filtered)

197

Messages (Filtered)

82,427

Analysis

United States has contributed 5,119 unique IP addresses across 48,890 failed authentication events, accounting for 82,427 messages across 197 networks. Activity spans from March 5, 2024 to May 12, 2026. The most active networks are AT-88-Z, UK-MICROSOFT-20060601, and MSFT.

Failures

Showing 2,901-2,910 of 48,890 failures, affecting 82,427 messages

Geographic Distribution (US)

Color intensity represents message volume