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 2,001-2,050 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
7/17/2025 40.93.64.12 IE 1
7/17/2025 40.93.64.26 IE 1
7/17/2025 40.93.64.29 IE 1
7/17/2025 40.93.64.31 IE 2
7/17/2025 40.93.65.26 NL 1
7/17/2025 40.93.65.29 NL 1
7/17/2025 40.93.69.27 FR 1
7/17/2025 40.93.69.28 FR 1
7/17/2025 40.93.76.74 FR 1
7/17/2025 40.93.81.76 NO 2
7/17/2025 40.93.81.77 NO 1
7/17/2025 40.95.22.78 US 1
7/17/2025 40.95.46.82 US 1
7/16/2025 40.95.45.56 US 1
7/11/2025 104.47.51.45 US 1
7/11/2025 104.47.55.172 US 1
7/11/2025 104.47.55.175 US 1
7/11/2025 104.47.55.44 US 1
7/11/2025 104.47.55.47 US 1
7/11/2025 104.47.56.168 US 1
7/11/2025 104.47.56.170 US 1
7/11/2025 104.47.56.174 US 1
7/11/2025 104.47.57.173 US 1
7/11/2025 104.47.57.177 US 1
7/11/2025 104.47.57.40 US 1
7/11/2025 104.47.57.47 US 1
7/11/2025 104.47.58.173 US 1
7/11/2025 104.47.58.174 US 2
7/11/2025 104.47.58.43 US 1
7/11/2025 104.47.58.47 US 2
7/11/2025 104.47.58.48 US 1
7/11/2025 104.47.59.172 US 1
7/11/2025 104.47.59.173 US 1
7/11/2025 104.47.70.41 US 1
7/11/2025 104.47.73.40 US 1
7/11/2025 40.107.223.54 US 1
7/11/2025 40.107.244.119 US 1
7/11/2025 40.107.93.74 US 1
7/11/2025 40.93.20.6 US 1
7/11/2025 40.93.64.10 IE 1
7/11/2025 40.93.64.15 IE 2
7/11/2025 40.93.64.5 IE 1
7/11/2025 40.93.65.26 NL 1
7/11/2025 40.93.65.27 NL 1
7/11/2025 40.93.65.67 NL 1
7/11/2025 40.93.65.68 NL 1
7/11/2025 40.93.65.69 NL 1
7/11/2025 40.93.65.71 NL 1
7/11/2025 40.93.69.27 FR 2
7/11/2025 40.93.69.29 FR 1