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)

49,356

IPs (Filtered)

5,144

Networks (Filtered)

200

Messages (Filtered)

83,106

Analysis

United States has contributed 5,144 unique IP addresses across 49,356 failed authentication events, accounting for 83,106 messages across 200 networks. Activity spans from March 5, 2024 to May 27, 2026. The most active networks are AT-88-Z, UK-MICROSOFT-20060601, and MSFT.

Failures

Showing 131-140 of 49,356 failures, affecting 83,106 messages
Date โ–ฒ Source IP Country City Network Messages
3/13/2024 104.47.57.168 US United States Des Moines MSFT โ“˜ 1
3/13/2024 40.107.93.111 US United States Des Moines MSFT โ“˜ 1
3/13/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 2
3/13/2024 40.93.14.19 US United States San Antonio MSFT โ“˜ 1
3/13/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 4
3/13/2024 40.107.236.100 US United States Boydton MSFT โ“˜ 1
3/13/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 4
3/13/2024 40.107.92.100 US United States Boydton MSFT โ“˜ 1
3/13/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 8
3/13/2024 100.21.157.149 โš  US United States Boardman AMAZO-4 โ“˜ 1

Geographic Distribution (US)

Color intensity represents message volume