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 3,851-3,900 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
2/28/2025 104.47.66.41 US 2
2/28/2025 104.47.66.46 US 1
2/28/2025 104.47.66.48 US 1
2/28/2025 104.47.70.40 US 1
2/28/2025 104.47.70.41 US 1
2/28/2025 104.47.70.42 US 1
2/28/2025 104.47.70.45 US 1
2/28/2025 104.47.70.47 US 1
2/28/2025 104.47.73.168 US 1
2/28/2025 104.47.73.172 US 1
2/28/2025 104.47.73.40 US 1
2/28/2025 104.47.73.43 US 1
2/28/2025 104.47.74.40 US 1
2/28/2025 104.47.74.45 US 2
2/28/2025 104.47.74.47 US 1
2/28/2025 2603:10b6:5:3b4::27 US 1
2/28/2025 2603:10b6:806:2c1::12 US 1
2/28/2025 2603:10b6:a03:1e0::24 US 1
2/28/2025 2603:10b6:a03:59d::9 US 1
2/28/2025 40.107.100.117 US 1
2/28/2025 40.107.20.75 IE 1
2/28/2025 40.107.212.99 US 1
2/28/2025 40.107.220.115 US 1
2/28/2025 40.107.223.69 US 1
2/28/2025 40.107.236.92 US 1
2/28/2025 40.107.237.84 US 1
2/28/2025 40.107.243.92 US 1
2/28/2025 40.107.92.117 US 1
2/28/2025 40.107.94.133 US 1
2/28/2025 40.107.94.91 US 1
2/28/2025 40.93.1.1 US 1
2/28/2025 40.93.12.21 US 1
2/28/2025 40.93.1.33 US 1
2/28/2025 40.93.14.26 US 1
2/28/2025 40.93.14.27 US 1
2/28/2025 40.93.1.74 US 1
2/28/2025 40.93.1.77 US 1
2/28/2025 40.93.194.77 US 1
2/28/2025 40.93.198.123 US 1
2/28/2025 40.93.198.76 US 1
2/28/2025 40.93.199.105 US 1
2/28/2025 40.93.20.7 US 1
2/28/2025 40.93.6.26 US 1
2/28/2025 40.93.6.31 US 1
2/28/2025 40.93.6.77 US 1
2/28/2025 40.95.31.76 US 1
2/28/2025 40.95.36.42 US 1
2/28/2025 40.95.37.64 US 1
2/28/2025 52.101.51.79 US 1
2/27/2025 104.47.57.174 US 1