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)

50,746

IPs (Filtered)

5,218

Networks (Filtered)

201

Messages (Filtered)

85,171

Analysis

United States has contributed 5,218 unique IP addresses across 50,746 failed authentication events, accounting for 85,171 messages across 201 networks. Activity spans from March 5, 2024 to July 9, 2026. The most active networks are AT-88-Z, UK-MICROSOFT-20060601, and MSFT.

Failures

Showing 7,361-7,370 of 50,746 failures, affecting 85,171 messages
Date โ–ฒ Source IP Country City Network Messages
10/23/2024 40.93.20.59 US United States Chicago MSFT โ“˜ 1
10/23/2024 104.47.51.49 US United States Boydton MSFT โ“˜ 1
10/23/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 4
10/23/2024 40.107.200.138 US United States Chicago MSFT โ“˜ 1
10/23/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 10
10/23/2024 104.47.55.44 US United States MSFT โ“˜ 2
10/23/2024 3.231.237.226 โš  US United States Ashburn AT-88-Z โ“˜ 1
10/23/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 1
10/23/2024 40.93.13.24 US United States Des Moines MSFT โ“˜ 1
10/23/2024 40.93.20.4 US United States Chicago MSFT โ“˜ 1

Geographic Distribution (US)

Color intensity represents message volume