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

48,998

IPs (Filtered)

5,124

Networks (Filtered)

197

Messages (Filtered)

82,596

Analysis

United States has contributed 5,124 unique IP addresses across 48,998 failed authentication events, accounting for 82,596 messages across 197 networks. Activity spans from March 5, 2024 to May 13, 2026. The most active networks are AT-88-Z, UK-MICROSOFT-20060601, and MSFT.

Failures

Showing 2,971-2,980 of 48,998 failures, affecting 82,596 messages
Date ▲ Source IP Country City Network Messages
9/12/2024 40.95.20.55 US United States Boydton MSFT ⓘ 1
9/12/2024 2a01:111:f403:2415::70e US United States Des Moines N/A 1
9/12/2024 2a01:111:f403:2416::72d US United States N/A 1
9/12/2024 2a01:111:f403:2418::712 US United States Boydton N/A 1
9/12/2024 2a01:111:f403:c111::5 US United States Des Moines UK-MICROSOFT-20060601 3
9/12/2024 40.95.21.63 US United States Boydton MSFT ⓘ 1
9/12/2024 2a01:111:f403:2408::708 US United States Boydton UK-MICROSOFT-20060601 1
9/12/2024 2a01:111:f400:7ea9::703 US United States San Antonio UK-MICROSOFT-20060601 1
9/12/2024 2a01:111:f403:2418::702 US United States Boydton N/A 1
9/12/2024 2a01:111:f403:2408::726 US United States Boydton UK-MICROSOFT-20060601 1

Geographic Distribution (US)

Color intensity represents message volume
Top Networks in United States
Top Owners in United States