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 4,051-4,100 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
2/26/2025 40.107.92.139 US 1
2/26/2025 40.107.92.43 US 1
2/26/2025 40.107.92.95 US 1
2/26/2025 40.107.93.48 US 1
2/26/2025 40.107.93.62 US 1
2/26/2025 40.107.93.98 US 1
2/26/2025 40.107.94.57 US 1
2/26/2025 40.107.94.93 US 1
2/26/2025 40.107.95.104 US 1
2/26/2025 40.107.96.120 US 1
2/26/2025 40.107.96.133 US 1
2/26/2025 40.74.181.208 US 2
2/26/2025 40.93.1.1 US 1
2/26/2025 40.93.11.7 US 1
2/26/2025 40.93.12.19 US 1
2/26/2025 40.93.12.22 US 1
2/26/2025 40.93.12.23 US 2
2/26/2025 40.93.12.25 US 1
2/26/2025 40.93.12.29 US 2
2/26/2025 40.93.12.30 US 1
2/26/2025 40.93.1.32 US 1
2/26/2025 40.93.1.37 US 1
2/26/2025 40.93.1.39 US 1
2/26/2025 40.93.14.11 US 1
2/26/2025 40.93.14.12 US 1
2/26/2025 40.93.14.15 US 1
2/26/2025 40.93.14.24 US 1
2/26/2025 40.93.14.27 US 1
2/26/2025 40.93.14.29 US 1
2/26/2025 40.93.1.78 US 1
2/26/2025 40.93.1.79 US 1
2/26/2025 40.93.18.26 CA 1
2/26/2025 40.93.198.120 US 1
2/26/2025 40.93.199.74 US 1
2/26/2025 40.93.201.120 US 1
2/26/2025 40.93.201.83 US 1
2/26/2025 40.93.201.89 US 1
2/26/2025 40.93.20.2 US 1
2/26/2025 40.93.20.50 US 1
2/26/2025 40.93.20.51 US 1
2/26/2025 40.93.20.52 US 1
2/26/2025 40.93.20.62 US 1
2/26/2025 40.93.20.63 US 1
2/26/2025 40.93.20.7 US 2
2/26/2025 40.93.2.9 US 2
2/26/2025 40.93.6.30 US 1
2/26/2025 40.93.6.34 US 1
2/26/2025 40.93.6.39 US 1
2/26/2025 40.93.6.74 US 2
2/26/2025 40.93.6.78 US 1