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 1,901-1,950 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
7/23/2025 104.47.58.45 US 1
7/23/2025 104.47.59.174 US 1
7/23/2025 104.47.66.44 US 1
7/23/2025 104.47.73.42 US 1
7/23/2025 104.47.74.41 US 1
7/23/2025 2603:10b6:408:e4::30 US 1
7/23/2025 40.107.101.99 US 1
7/23/2025 40.107.236.89 US 1
7/23/2025 40.93.130.54 JP 1
7/23/2025 40.93.200.51 US 1
7/23/2025 40.93.214.72 SE 1
7/23/2025 40.93.64.12 IE 1
7/23/2025 40.93.65.14 NL 1
7/23/2025 40.93.65.68 NL 1
7/23/2025 40.93.69.28 FR 2
7/23/2025 40.93.69.30 FR 1
7/23/2025 40.93.69.31 FR 1
7/23/2025 40.93.76.77 FR 1
7/23/2025 40.93.81.75 NO 1
7/23/2025 40.93.81.76 NO 1
7/23/2025 40.93.81.77 NO 1
7/23/2025 40.93.81.79 NO 1
7/23/2025 40.95.36.47 US 1
7/22/2025 40.95.31.86 US 1
7/18/2025 104.47.51.42 US 1
7/18/2025 104.47.51.48 US 2
7/18/2025 104.47.55.168 US 1
7/18/2025 104.47.55.169 US 1
7/18/2025 104.47.55.176 US 1
7/18/2025 104.47.55.47 US 1
7/18/2025 104.47.56.168 US 1
7/18/2025 104.47.56.171 US 1
7/18/2025 104.47.56.172 US 1
7/18/2025 104.47.56.174 US 3
7/18/2025 104.47.56.176 US 1
7/18/2025 104.47.56.42 US 1
7/18/2025 104.47.57.175 US 1
7/18/2025 104.47.57.177 US 1
7/18/2025 104.47.57.46 US 1
7/18/2025 104.47.58.174 US 1
7/18/2025 104.47.58.44 US 1
7/18/2025 104.47.58.47 US 1
7/18/2025 104.47.59.168 US 1
7/18/2025 104.47.59.170 US 1
7/18/2025 104.47.59.174 US 1
7/18/2025 104.47.59.175 US 1
7/18/2025 104.47.59.177 US 1
7/18/2025 104.47.66.42 US 1
7/18/2025 104.47.66.43 US 1
7/18/2025 104.47.70.41 US 1