Shame on you, stupid spammers.. DMARC Spoof Detection
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DMARC Spoof Detection, Japan

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This page shows DMARC authentication failures originating from Japan. Learn more about this data.

Failures (Filtered)

238

IPs (Filtered)

73

Networks (Filtered)

13

Messages (Filtered)

316

Analysis

Japan has contributed 73 unique IP addresses across 238 failed authentication events, accounting for 316 messages across 13 networks. Activity spans from May 7, 2024 to May 29, 2026. The most active networks are UK-MICROSOFT-20060601, MSFT, and KIR.

Failures

Showing 51-60 of 238 failures, affecting 316 messages
Date ▲ Source IP Country City Network Messages
11/20/2024 40.93.73.27 JP Japan Tokyo MSFT ⓘ 1
11/20/2024 40.93.73.27 JP Japan Tokyo MSFT ⓘ 1
11/20/2024 52.103.194.3 JP Japan Osaka MSFT ⓘ 1
11/20/2024 52.103.171.1 JP Japan Tokyo MSFT ⓘ 1
11/21/2024 153.122.75.80 JP Japan DIX-CL 1
12/4/2024 40.93.130.27 JP Japan Osaka MSFT ⓘ 1
12/4/2024 40.93.73.29 JP Japan Tokyo MSFT ⓘ 1
12/5/2024 52.103.171.1 JP Japan Tokyo MSFT ⓘ 1
12/5/2024 153.122.75.80 JP Japan DIX-CL 1
12/10/2024 52.103.171.11 JP Japan Tokyo MSFT ⓘ 1
Top Networks in Japan
Top Owners in Japan