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)

50,269

IPs (Filtered)

5,184

Networks (Filtered)

200

Messages (Filtered)

84,457

Analysis

United States has contributed 5,184 unique IP addresses across 50,269 failed authentication events, accounting for 84,457 messages across 200 networks. Activity spans from March 5, 2024 to June 20, 2026. The most active networks are AT-88-Z, UK-MICROSOFT-20060601, and MSFT.

Failures

Showing 4,111-4,120 of 50,269 failures, affecting 84,457 messages
Date โ–ฒ Source IP Country City Network Messages
9/18/2024 40.95.38.42 US United States Des Moines MSFT โ“˜ 1
9/18/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 1
9/18/2024 40.95.45.76 US United States MSFT โ“˜ 1
9/18/2024 104.47.73.45 US United States Redmond MSFT โ“˜ 1
9/18/2024 104.47.58.100 US United States Des Moines MSFT โ“˜ 1
9/18/2024 40.93.13.30 US United States Des Moines MSFT โ“˜ 1
9/18/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 10
9/18/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 7
9/18/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 1
9/18/2024 104.47.59.172 US United States Des Moines MSFT โ“˜ 1

Geographic Distribution (US)

Color intensity represents message volume