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)

48,854

IPs (Filtered)

5,110

Networks (Filtered)

189

Messages (Filtered)

82,390

Analysis

United States has contributed 5,110 unique IP addresses across 48,854 failed authentication events, accounting for 82,390 messages across 189 networks. Activity spans from March 5, 2024 to April 22, 2026. The most active networks are AT-88-Z, UK-MICROSOFT-20060601, and MSFT.

Failures

Showing 221-230 of 48,854 failures, affecting 82,390 messages
Date โ–ฒ Source IP Country City Network Messages
3/13/2024 104.47.58.168 US United States Boydton MSFT โ“˜ 1
3/13/2024 100.24.129.5 โš  US United States Ashburn AMAZO-4 โ“˜ 2
3/13/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 2
3/13/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 2
3/13/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 18
3/13/2024 104.47.57.168 US United States Des Moines MSFT โ“˜ 1
3/13/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 8
3/13/2024 40.107.237.128 US United States Boydton MSFT โ“˜ 1
3/13/2024 104.47.66.40 US United States MSFT โ“˜ 1
3/13/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 6

Geographic Distribution (US)

Color intensity represents message volume