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 3,801-3,850 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
3/12/2025 40.107.237.51 US 1
3/12/2025 40.107.249.58 IE 1
3/12/2025 40.107.93.121 US 1
3/12/2025 40.107.94.98 US 1
3/12/2025 40.107.95.128 US 1
3/12/2025 40.93.11.5 US 1
3/12/2025 40.93.12.28 US 1
3/12/2025 40.93.14.28 US 1
3/12/2025 40.93.18.30 CA 1
3/12/2025 40.93.6.1 US 1
3/12/2025 40.93.6.74 US 1
3/12/2025 40.95.38.82 US 1
3/12/2025 40.95.48.45 US 1
3/12/2025 52.101.43.133 US 1
3/11/2025 104.47.58.40 US 1
3/11/2025 104.47.59.174 US 1
3/1/2025 104.47.58.43 US 1
2/28/2025 104.47.11.43 AT 1
2/28/2025 104.47.18.110 NL 1
2/28/2025 104.47.51.42 US 1
2/28/2025 104.47.55.170 US 1
2/28/2025 104.47.55.171 US 1
2/28/2025 104.47.55.172 US 1
2/28/2025 104.47.55.176 US 1
2/28/2025 104.47.55.177 US 1
2/28/2025 104.47.55.42 US 1
2/28/2025 104.47.56.175 US 1
2/28/2025 104.47.56.177 US 1
2/28/2025 104.47.56.46 US 1
2/28/2025 104.47.57.169 US 2
2/28/2025 104.47.57.170 US 1
2/28/2025 104.47.57.172 US 1
2/28/2025 104.47.57.40 US 1
2/28/2025 104.47.57.44 US 1
2/28/2025 104.47.57.45 US 1
2/28/2025 104.47.58.169 US 1
2/28/2025 104.47.58.170 US 2
2/28/2025 104.47.58.172 US 1
2/28/2025 104.47.58.177 US 1
2/28/2025 104.47.58.42 US 1
2/28/2025 104.47.58.43 US 1
2/28/2025 104.47.58.44 US 1
2/28/2025 104.47.58.48 US 1
2/28/2025 104.47.58.49 US 1
2/28/2025 104.47.59.168 US 3
2/28/2025 104.47.59.169 US 1
2/28/2025 104.47.59.172 US 1
2/28/2025 104.47.59.173 US 1
2/28/2025 104.47.59.174 US 1
2/28/2025 104.47.66.40 US 2