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)

49,824

IPs (Filtered)

5,167

Networks (Filtered)

200

Messages (Filtered)

83,797

Analysis

United States has contributed 5,167 unique IP addresses across 49,824 failed authentication events, accounting for 83,797 messages across 200 networks. Activity spans from March 5, 2024 to June 9, 2026. The most active networks are AT-88-Z, UK-MICROSOFT-20060601, and MSFT.

Failures

Showing 3,491-3,500 of 49,824 failures, affecting 83,797 messages
Date โ–ฒ Source IP Country City Network Messages
9/13/2024 104.47.74.44 US United States Boydton MSFT โ“˜ 1
9/13/2024 40.93.13.31 US United States Des Moines MSFT โ“˜ 1
9/13/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 1
9/13/2024 40.107.100.129 US United States Boydton MSFT โ“˜ 1
9/13/2024 34.210.15.192 โš  US United States Boardman AT-88-Z โ“˜ 1
9/13/2024 104.47.55.174 US United States Boydton MSFT โ“˜ 1
9/13/2024 104.47.57.172 US United States Des Moines MSFT โ“˜ 1
9/13/2024 100.24.129.5 โš  US United States Ashburn AMAZO-4 โ“˜ 1
9/13/2024 104.47.57.173 US United States Des Moines MSFT โ“˜ 1
9/13/2024 40.107.223.135 US United States Des Moines MSFT โ“˜ 1

Geographic Distribution (US)

Color intensity represents message volume