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 651-700 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
10/8/2025 40.93.65.28 NL 1
10/8/2025 40.93.65.48 NL 1
10/8/2025 40.93.6.72 US 2
10/8/2025 40.93.6.74 US 1
10/8/2025 40.93.76.79 FR 1
10/8/2025 40.93.8.57 US 1
10/7/2025 40.107.149.121 DE 1
10/7/2025 40.107.208.93 US 1
10/7/2025 40.93.12.53 US 1
10/7/2025 40.93.14.22 US 1
10/7/2025 40.93.198.117 US 1
10/7/2025 40.93.6.108 US 1
10/7/2025 52.101.193.83 US 1
10/4/2025 40.93.10.100 US 1
10/4/2025 40.93.10.101 US 2
10/4/2025 40.93.1.2 US 1
10/4/2025 40.93.14.42 US 1
10/4/2025 40.93.201.38 US 1
10/4/2025 40.93.20.54 US 1
10/4/2025 40.93.20.98 US 1
10/4/2025 40.93.23.26 US 1
10/4/2025 40.93.23.36 US 1
10/4/2025 40.93.6.109 US 1
10/4/2025 40.93.64.67 IE 1
10/4/2025 40.93.64.69 IE 1
10/4/2025 40.93.64.7 IE 1
10/4/2025 40.93.65.14 NL 1
10/4/2025 40.93.65.31 NL 1
10/4/2025 40.93.76.76 FR 1
10/4/2025 40.93.8.33 US 1
10/3/2025 2603:10b6:208:2b8::8 US 1
10/3/2025 2603:10b6:208:2be::15 US 1
10/3/2025 2603:10b6:208:2be::35 US 2
10/3/2025 2603:10b6:510:345::18 US 1
10/3/2025 2603:10b6:510:5::32 US 1
10/3/2025 2603:10b6:5:174::27 US 1
10/3/2025 2603:10b6:5:3b7::7 US 1
10/3/2025 2603:10b6:610:1e7::34 US 1
10/3/2025 2603:10b6:806:2d3::29 US 1
10/3/2025 2603:10b6:a03:33a::11 US 1
10/3/2025 40.93.10.18 US 1
10/3/2025 40.93.1.3 US 1
10/3/2025 40.93.131.1 IN 1
10/3/2025 40.93.131.26 IN 1
10/3/2025 40.93.131.3 IN 1
10/3/2025 40.93.131.6 IN 1
10/3/2025 40.93.132.28 IN 1
10/3/2025 40.93.132.29 IN 1
10/3/2025 40.93.132.3 IN 1
10/3/2025 40.93.132.7 IN 1