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.

(More)

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 851-900 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
9/26/2025 2603:10b6:408:34::32 US 1
9/26/2025 2603:10b6:408:ee::20 US 1
9/26/2025 2603:10b6:510:2d2::16 US 1
9/26/2025 2603:10b6:510:33d::27 US 1
9/26/2025 2603:10b6:5:333::18 US 2
9/26/2025 2603:10b6:806:120::35 US 1
9/26/2025 2603:10b6:806:24::14 US 1
9/26/2025 2603:10b6:806:26::20 US 1
9/26/2025 2603:10b6:907::48 US 1
9/26/2025 2603:10b6:a02:bc::32 US 1
9/26/2025 2603:10b6:a03:2c5::31 US 1
9/26/2025 2603:10b6:a03:94::46 US 1
9/26/2025 40.107.208.13 US 1
9/26/2025 40.93.10.101 US 3
9/26/2025 40.93.10.103 US 2
9/26/2025 40.93.10.96 US 1
9/26/2025 40.93.10.98 US 2
9/26/2025 40.93.10.99 US 3
9/26/2025 40.93.12.17 US 1
9/26/2025 40.93.12.2 US 2
9/26/2025 40.93.12.21 US 1
9/26/2025 40.93.12.3 US 1
9/26/2025 40.93.12.31 US 1
9/26/2025 40.93.12.7 US 1
9/26/2025 40.93.1.3 US 1
9/26/2025 40.93.131.1 IN 1
9/26/2025 40.93.131.24 IN 1
9/26/2025 40.93.131.5 IN 1
9/26/2025 40.93.131.6 IN 1
9/26/2025 40.93.132.1 IN 1
9/26/2025 40.93.132.2 IN 1
9/26/2025 40.93.132.25 IN 1
9/26/2025 40.93.132.7 IN 1
9/26/2025 40.93.1.38 US 2
9/26/2025 40.93.14.103 US 2
9/26/2025 40.93.14.11 US 1
9/26/2025 40.93.14.14 US 1
9/26/2025 40.93.14.18 US 2
9/26/2025 40.93.14.19 US 1
9/26/2025 40.93.14.23 US 1
9/26/2025 40.93.14.44 US 1
9/26/2025 40.93.14.96 US 1
9/26/2025 40.93.14.99 US 1
9/26/2025 40.93.1.5 US 1
9/26/2025 40.93.1.72 US 1
9/26/2025 40.93.1.73 US 1
9/26/2025 40.93.1.76 US 1
9/26/2025 40.93.1.78 US 1
9/26/2025 40.93.1.79 US 2
9/26/2025 40.93.195.82 US 1