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 2,551-2,600 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
6/27/2025 2603:10b6:303:115::26 US 1
6/27/2025 2603:10b6:303:8d::14 US 1
6/27/2025 2603:10b6:303:8f::35 US 2
6/27/2025 2603:10b6:408:13c::12 US 2
6/27/2025 2603:10b6:408:13d::26 US 1
6/27/2025 2603:10b6:408:ff::14 US 1
6/27/2025 2603:10b6:5:3b9::21 US 1
6/27/2025 2603:10b6:a03:1a0::17 US 1
6/27/2025 2603:10b6:a03:e0::15 US 1
6/27/2025 40.107.100.138 US 1
6/27/2025 40.107.102.73 US 1
6/27/2025 40.107.200.104 US 1
6/27/2025 40.107.236.114 US 1
6/27/2025 40.107.236.45 US 1
6/27/2025 40.107.93.96 US 1
6/27/2025 40.107.94.124 US 1
6/27/2025 40.107.96.40 US 1
6/27/2025 40.93.12.20 US 3
6/27/2025 40.93.12.22 US 1
6/27/2025 40.93.12.30 US 1
6/27/2025 40.93.1.39 US 1
6/27/2025 40.93.14.11 US 1
6/27/2025 40.93.1.5 US 1
6/27/2025 40.93.1.6 US 2
6/27/2025 40.93.200.113 US 1
6/27/2025 40.93.200.86 US 1
6/27/2025 40.93.200.87 US 1
6/27/2025 40.93.64.2 IE 1
6/27/2025 40.93.64.5 IE 1
6/27/2025 40.93.65.10 NL 1
6/27/2025 40.93.69.29 FR 1
6/27/2025 40.93.69.31 FR 1
6/27/2025 40.93.76.79 FR 2
6/27/2025 40.93.81.74 NO 1
6/27/2025 40.95.22.148 US 1
6/27/2025 40.95.22.58 US 1
6/27/2025 40.95.22.89 US 1
6/27/2025 40.95.32.42 US 1
6/27/2025 40.95.32.50 US 1
6/27/2025 40.95.36.71 US 1
6/27/2025 40.95.36.83 US 2
6/27/2025 40.95.37.41 US 1
6/27/2025 40.95.37.77 US 1
6/27/2025 40.95.45.47 US 1
6/27/2025 40.95.45.73 US 1
6/27/2025 40.95.45.81 US 1
6/27/2025 40.95.46.51 US 1
6/27/2025 40.95.46.88 US 1
6/27/2025 52.101.44.139 US 1
6/27/2025 52.101.57.121 US 1