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 1,201-1,250 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
9/18/2025 40.93.23.93 US 1
9/18/2025 40.93.2.55 US 1
9/18/2025 40.93.6.105 US 1
9/18/2025 40.93.64.65 IE 1
9/18/2025 40.93.64.84 IE 1
9/18/2025 40.93.65.48 NL 1
9/18/2025 40.93.65.52 NL 1
9/18/2025 40.93.6.72 US 1
9/18/2025 40.93.6.73 US 1
9/18/2025 40.93.8.60 US 1
9/18/2025 40.95.21.78 US 1
9/18/2025 52.101.56.118 US 1
9/17/2025 104.47.51.45 US 1
9/17/2025 104.47.51.49 US 1
9/17/2025 104.47.55.170 US 1
9/17/2025 104.47.55.44 US 1
9/17/2025 104.47.55.46 US 1
9/17/2025 104.47.56.170 US 1
9/17/2025 104.47.56.176 US 1
9/17/2025 104.47.57.170 US 1
9/17/2025 104.47.57.43 US 1
9/17/2025 104.47.58.175 US 1
9/17/2025 104.47.59.172 US 1
9/17/2025 104.47.70.49 US 1
9/17/2025 40.107.209.64 US 1
9/17/2025 40.93.10.74 US 1
9/17/2025 40.93.10.75 US 1
9/17/2025 40.93.10.76 US 1
9/17/2025 40.93.12.26 US 1
9/17/2025 40.93.12.31 US 2
9/17/2025 40.93.14.15 US 1
9/17/2025 40.93.14.20 US 1
9/17/2025 40.93.14.41 US 1
9/17/2025 40.93.14.42 US 1
9/17/2025 40.93.14.46 US 1
9/17/2025 40.93.20.23 US 1
9/17/2025 40.93.20.54 US 1
9/17/2025 40.93.20.57 US 1
9/17/2025 40.93.2.31 US 1
9/17/2025 40.93.23.101 US 1
9/17/2025 40.93.23.33 US 1
9/17/2025 40.93.2.53 US 1
9/17/2025 40.93.6.39 US 1
9/17/2025 40.93.64.10 IE 1
9/17/2025 40.93.65.1 NL 1
9/17/2025 40.93.65.10 NL 1
9/17/2025 40.93.65.31 NL 1
9/17/2025 40.93.65.5 NL 1
9/17/2025 40.93.65.50 NL 1
9/17/2025 40.93.69.29 FR 1