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 4,101-4,150 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
2/26/2025 40.93.6.79 US 1
2/26/2025 40.93.85.55 CH 1
2/26/2025 40.95.32.73 US 1
2/26/2025 40.95.36.78 US 1
2/26/2025 40.95.45.48 US 1
2/26/2025 40.95.46.73 US 1
2/26/2025 40.95.48.81 US 1
2/26/2025 52.100.159.249 US 1
2/26/2025 52.100.172.208 US 1
2/26/2025 52.101.193.111 US 1
2/26/2025 52.101.44.139 US 1
2/26/2025 52.101.57.139 US 1
2/26/2025 52.101.62.46 US 1
2/26/2025 52.101.85.119 US 1
2/26/2025 52.103.133.25 US 1
2/25/2025 104.47.11.232 NL 1
2/25/2025 104.47.17.113 IE 1
2/25/2025 104.47.51.237 NL 1
2/25/2025 104.47.55.171 US 1
2/25/2025 104.47.58.44 US 1
2/25/2025 104.47.58.46 US 1
2/25/2025 104.47.59.171 US 1
2/25/2025 104.47.66.48 US 1
2/25/2025 104.47.74.44 US 1
2/25/2025 40.93.11.5 US 1
2/25/2025 40.93.1.3 US 1
2/25/2025 40.93.1.39 US 1
2/25/2025 40.93.1.76 US 1
2/25/2025 40.93.65.54 NL 1
2/25/2025 40.93.65.55 NL 1
2/25/2025 40.95.21.62 US 1
2/25/2025 40.95.33.73 US 1
2/25/2025 40.95.36.45 US 1
2/25/2025 40.95.36.74 US 1
2/25/2025 40.95.37.50 US 2
2/25/2025 40.95.37.64 US 1
2/25/2025 40.95.45.43 US 1
2/25/2025 40.95.45.61 US 1
2/25/2025 52.101.85.88 US 1
2/16/2025 104.47.57.44 US 1
2/15/2025 104.47.51.41 US 1
2/15/2025 104.47.56.176 US 1
2/15/2025 104.47.56.43 US 1
2/15/2025 104.47.57.175 US 1
2/15/2025 104.47.58.177 US 1
2/15/2025 104.47.70.40 US 1
2/14/2025 104.47.11.233 NL 1
2/14/2025 104.47.17.169 AT 1
2/14/2025 104.47.51.173 IE 1
2/14/2025 104.47.51.236 NL 1