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 2,651-2,700 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
6/25/2025 104.47.73.45 US 1
6/25/2025 104.47.74.47 US 1
6/25/2025 2603:10b6:5:333::21 US 1
6/25/2025 2603:10b6:610:e5::25 US 1
6/25/2025 40.93.64.12 IE 1
6/25/2025 40.93.64.29 IE 1
6/25/2025 40.93.64.3 IE 1
6/25/2025 40.93.65.31 NL 1
6/25/2025 40.93.65.69 NL 1
6/25/2025 40.93.69.30 FR 1
6/25/2025 40.95.33.61 US 1
6/25/2025 40.95.35.82 US 1
6/25/2025 52.101.85.74 US 1
6/24/2025 104.47.56.44 US 1
6/24/2025 104.47.57.171 US 1
6/24/2025 104.47.57.42 US 1
6/24/2025 104.47.66.43 US 1
6/24/2025 104.47.66.48 US 1
6/24/2025 40.95.31.86 US 1
6/24/2025 40.95.32.54 US 1
6/20/2025 104.47.55.46 US 1
6/20/2025 104.47.57.173 US 1
6/20/2025 104.47.58.169 US 1
6/20/2025 104.47.58.170 US 1
6/20/2025 104.47.59.174 US 1
6/20/2025 104.47.66.47 US 1
6/20/2025 40.93.1.39 US 1
6/20/2025 40.93.20.60 US 1
6/20/2025 40.93.64.11 IE 1
6/20/2025 40.93.64.30 IE 1
6/20/2025 40.93.64.5 IE 1
6/20/2025 40.93.65.11 NL 1
6/20/2025 40.93.81.74 NO 1
6/19/2025 104.47.51.46 US 1
6/19/2025 104.47.55.174 US 1
6/19/2025 104.47.55.177 US 1
6/19/2025 104.47.55.44 US 1
6/19/2025 104.47.56.172 US 1
6/19/2025 104.47.56.177 US 1
6/19/2025 104.47.56.40 US 1
6/19/2025 104.47.57.168 US 1
6/19/2025 104.47.57.176 US 1
6/19/2025 104.47.57.43 US 1
6/19/2025 104.47.57.44 US 1
6/19/2025 104.47.58.41 US 1
6/19/2025 104.47.58.44 US 1
6/19/2025 104.47.59.173 US 1
6/19/2025 104.47.59.175 US 2
6/19/2025 104.47.66.41 US 1
6/19/2025 104.47.66.47 US 1