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 1,001-1,050 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
9/24/2025 2603:10b6:806:3c5::13 US 1
9/24/2025 2603:10b6:a03:117::33 US 1
9/24/2025 40.107.200.142 US 1
9/24/2025 40.107.200.61 US 1
9/24/2025 40.93.10.103 US 1
9/24/2025 40.93.10.75 US 1
9/24/2025 40.93.10.76 US 1
9/24/2025 40.93.10.96 US 1
9/24/2025 40.93.10.98 US 1
9/24/2025 40.93.10.99 US 2
9/24/2025 40.93.12.1 US 1
9/24/2025 40.93.12.3 US 1
9/24/2025 40.93.12.31 US 1
9/24/2025 40.93.12.51 US 1
9/24/2025 40.93.12.6 US 1
9/24/2025 40.93.12.7 US 3
9/24/2025 40.93.131.0 IN 1
9/24/2025 40.93.131.24 IN 2
9/24/2025 40.93.131.3 IN 1
9/24/2025 40.93.131.30 IN 1
9/24/2025 40.93.131.5 IN 2
9/24/2025 40.93.131.7 IN 1
9/24/2025 40.93.1.32 US 1
9/24/2025 40.93.132.1 IN 1
9/24/2025 40.93.132.25 IN 1
9/24/2025 40.93.132.27 IN 2
9/24/2025 40.93.132.7 IN 1
9/24/2025 40.93.1.37 US 1
9/24/2025 40.93.14.10 US 1
9/24/2025 40.93.14.19 US 1
9/24/2025 40.93.14.26 US 1
9/24/2025 40.93.14.96 US 2
9/24/2025 40.93.14.97 US 2
9/24/2025 40.93.14.98 US 1
9/24/2025 40.93.14.99 US 1
9/24/2025 40.93.1.73 US 1
9/24/2025 40.93.1.75 US 1
9/24/2025 40.93.1.77 US 1
9/24/2025 40.93.1.78 US 1
9/24/2025 40.93.20.100 US 1
9/24/2025 40.93.20.101 US 1
9/24/2025 40.93.20.17 US 1
9/24/2025 40.93.20.19 US 1
9/24/2025 40.93.20.54 US 1
9/24/2025 40.93.20.97 US 2
9/24/2025 40.93.214.101 SE 1
9/24/2025 40.93.214.74 SE 1
9/24/2025 40.93.214.96 SE 1
9/24/2025 40.93.214.98 SE 1
9/24/2025 40.93.23.26 US 1