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 1,301-1,350 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
9/12/2025 104.47.51.45 US 1
9/12/2025 104.47.51.47 US 1
9/12/2025 104.47.55.175 US 1
9/12/2025 104.47.55.177 US 1
9/12/2025 104.47.55.46 US 1
9/12/2025 104.47.56.173 US 2
9/12/2025 104.47.56.43 US 1
9/12/2025 104.47.56.49 US 1
9/12/2025 104.47.57.173 US 1
9/12/2025 104.47.57.177 US 2
9/12/2025 104.47.58.168 US 1
9/12/2025 104.47.58.174 US 1
9/12/2025 104.47.58.40 US 1
9/12/2025 104.47.58.44 US 1
9/12/2025 104.47.58.46 US 1
9/12/2025 104.47.59.173 US 1
9/12/2025 104.47.59.174 US 1
9/12/2025 104.47.59.175 US 2
9/12/2025 104.47.59.176 US 2
9/12/2025 104.47.66.40 US 1
9/12/2025 104.47.66.43 US 1
9/12/2025 104.47.70.40 US 1
9/12/2025 104.47.70.41 US 1
9/12/2025 104.47.70.42 US 1
9/12/2025 104.47.70.43 US 1
9/12/2025 104.47.73.170 US 1
9/12/2025 104.47.73.46 US 1
9/12/2025 104.47.74.43 US 1
9/12/2025 104.47.74.45 US 1
9/12/2025 104.47.74.46 US 1
9/12/2025 104.47.74.48 US 2
9/12/2025 104.47.74.49 US 1
9/12/2025 2603:10b6:208:52f::24 US 1
9/12/2025 2603:10b6:22e:400:0:1004:0:c US 1
9/12/2025 2603:10b6:408:10c::35 US 1
9/12/2025 2603:10b6:4:60::43 US 1
9/12/2025 2603:10b6:610:cc::31 US 1
9/12/2025 2603:10b6:a03:339::35 US 1
9/12/2025 40.107.244.101 US 1
9/12/2025 40.93.10.20 US 1
9/12/2025 40.93.10.21 US 1
9/12/2025 40.93.10.77 US 1
9/12/2025 40.93.1.15 US 1
9/12/2025 40.93.12.21 US 1
9/12/2025 40.93.12.30 US 1
9/12/2025 40.93.131.24 IN 1
9/12/2025 40.93.131.30 IN 2
9/12/2025 40.93.131.7 IN 1
9/12/2025 40.93.132.25 IN 1
9/12/2025 40.93.132.3 IN 1