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 1,451-1,500 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
9/11/2025 40.93.14.25 US 1
9/11/2025 40.93.14.44 US 1
9/11/2025 40.93.14.45 US 1
9/11/2025 40.93.1.7 US 1
9/11/2025 40.93.20.30 US 1
9/11/2025 40.93.20.49 US 1
9/11/2025 40.93.20.54 US 1
9/11/2025 40.93.20.58 US 1
9/11/2025 40.93.2.29 US 1
9/11/2025 40.93.23.26 US 1
9/11/2025 40.93.23.39 US 1
9/11/2025 40.93.2.55 US 1
9/11/2025 40.93.6.33 US 1
9/11/2025 40.93.6.34 US 1
9/11/2025 40.93.64.2 IE 1
9/11/2025 40.93.64.26 IE 1
9/11/2025 40.93.65.12 NL 1
9/11/2025 40.93.65.15 NL 1
9/11/2025 40.93.69.31 FR 1
9/11/2025 40.95.22.56 US 1
9/11/2025 40.95.31.45 US 1
9/11/2025 40.95.31.61 US 1
9/11/2025 40.95.46.71 US 1
9/11/2025 52.101.85.30 US 1
9/10/2025 104.47.17.113 IE 1
9/10/2025 104.47.18.108 NL 1
9/10/2025 104.47.51.40 US 1
9/10/2025 104.47.51.43 US 1
9/10/2025 104.47.51.46 US 1
9/10/2025 104.47.55.168 US 1
9/10/2025 104.47.55.170 US 1
9/10/2025 104.47.55.177 US 1
9/10/2025 104.47.55.41 US 1
9/10/2025 104.47.55.43 US 1
9/10/2025 104.47.55.44 US 1
9/10/2025 104.47.55.45 US 2
9/10/2025 104.47.55.46 US 1
9/10/2025 104.47.55.47 US 2
9/10/2025 104.47.55.48 US 2
9/10/2025 104.47.55.49 US 1
9/10/2025 104.47.56.169 US 1
9/10/2025 104.47.56.171 US 2
9/10/2025 104.47.56.176 US 1
9/10/2025 104.47.56.44 US 1
9/10/2025 104.47.56.47 US 1
9/10/2025 104.47.57.169 US 2
9/10/2025 104.47.57.170 US 1
9/10/2025 104.47.57.174 US 2
9/10/2025 104.47.57.177 US 1
9/10/2025 104.47.57.47 US 1