Shame on you, stupid spammers.. Sh4meful  DMARC Spoof Detection 🦋 Bluesky

Network: MSFT

The data here is from DMARC analysis for domains I administer, drawn from a larger dataset (comprising millions of authentication records and messages). These entries are from email attempts that failed both SPF and DKIM (and there are often alignment issues - hidden here). In many cases, these failures indicate unauthorized use of the domain name, and are commonly associated with spoofing, phishing, or other abusive mail activity.

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Network Information
Owner:
Microsoft
Countries:
AU AT CA FR DE HK IN IE JP NO SG KR SE CH NL AE GB US
Unique IPs:
3,238
CIDRs:
104.40.0.0/13, 23.96.0.0/13, (more)
Failures Detected from this Network
Showing 4,651-4,700 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
1/8/2025 40.93.19.5 CA 1
1/8/2025 40.93.201.95 US 1
1/8/2025 40.93.20.2 US 1
1/8/2025 40.93.20.54 US 1
1/8/2025 40.93.20.55 US 2
1/8/2025 40.93.6.26 US 1
1/8/2025 40.93.6.27 US 1
1/8/2025 40.93.6.38 US 1
1/8/2025 40.95.31.70 US 1
1/8/2025 40.95.31.76 US 1
1/8/2025 40.95.32.49 US 1
1/8/2025 40.95.35.40 US 1
1/8/2025 40.95.38.49 US 1
1/8/2025 40.95.38.89 US 1
1/8/2025 40.95.46.81 US 1
1/8/2025 52.100.157.207 US 1
1/8/2025 52.100.166.206 US 4
1/8/2025 52.102.179.20 NO 1
1/8/2025 52.103.138.19 US 1
1/8/2025 52.103.171.0 JP 1
1/8/2025 52.103.194.3 JP 1
1/7/2025 104.47.17.105 IE 1
1/7/2025 104.47.17.106 IE 1
1/7/2025 104.47.17.109 IE 1
1/7/2025 104.47.17.175 AT 1
1/7/2025 104.47.18.113 NL 1
1/7/2025 104.47.51.238 NL 1
1/7/2025 104.47.70.47 US 1
1/7/2025 40.107.102.97 US 1
1/7/2025 40.95.22.69 US 1
1/7/2025 52.100.156.222 US 1
1/7/2025 52.100.157.245 US 1
1/7/2025 52.100.165.249 US 2
1/7/2025 52.101.61.83 US 1
12/27/2024 104.47.51.42 US 1
12/27/2024 104.47.55.170 US 1
12/27/2024 104.47.55.172 US 1
12/27/2024 104.47.55.46 US 1
12/27/2024 104.47.55.48 US 1
12/27/2024 104.47.55.49 US 1
12/27/2024 104.47.56.174 US 1
12/27/2024 104.47.56.48 US 1
12/27/2024 104.47.57.168 US 1
12/27/2024 104.47.57.174 US 1
12/27/2024 104.47.57.49 US 1
12/27/2024 104.47.58.176 US 2
12/27/2024 104.47.58.40 US 3
12/27/2024 104.47.58.41 US 2
12/27/2024 104.47.58.42 US 2
12/27/2024 104.47.70.40 US 1