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)

49,845

IPs (Filtered)

5,169

Networks (Filtered)

200

Messages (Filtered)

83,828

Analysis

United States has contributed 5,169 unique IP addresses across 49,845 failed authentication events, accounting for 83,828 messages across 200 networks. Activity spans from March 5, 2024 to June 16, 2026. The most active networks are AT-88-Z, UK-MICROSOFT-20060601, and MSFT.

Failures

Showing 3,971-3,980 of 49,845 failures, affecting 83,828 messages

Geographic Distribution (US)

Color intensity represents message volume