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)

50,735

IPs (Filtered)

5,214

Networks (Filtered)

201

Messages (Filtered)

85,158

Analysis

United States has contributed 5,214 unique IP addresses across 50,735 failed authentication events, accounting for 85,158 messages across 201 networks. Activity spans from March 5, 2024 to July 3, 2026. The most active networks are AT-88-Z, UK-MICROSOFT-20060601, and MSFT.

Failures

Showing 6,621-6,630 of 50,735 failures, affecting 85,158 messages
Date โ–ฒ Source IP Country City Network Messages
9/27/2024 104.47.55.42 US United States MSFT โ“˜ 1
9/27/2024 104.47.58.171 US United States Boydton MSFT โ“˜ 1
9/27/2024 40.107.237.47 US United States Boydton MSFT โ“˜ 1
9/27/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 2
9/27/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 13
9/27/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 3
9/27/2024 100.21.157.149 โš  US United States Boardman AMAZO-4 โ“˜ 1
9/27/2024 40.93.1.37 US United States San Jose MSFT โ“˜ 1
9/27/2024 35.174.145.124 โš  US United States Ashburn AT-88-Z โ“˜ 1
9/27/2024 40.95.22.78 US United States Des Moines MSFT โ“˜ 1

Geographic Distribution (US)

Color intensity represents message volume