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 901-950 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
9/26/2025 40.93.196.131 US 1
9/26/2025 40.93.20.101 US 2
9/26/2025 40.93.20.103 US 1
9/26/2025 40.93.20.48 US 1
9/26/2025 40.93.20.57 US 2
9/26/2025 40.93.20.96 US 1
9/26/2025 40.93.20.97 US 1
9/26/2025 40.93.2.12 US 1
9/26/2025 40.93.214.100 SE 1
9/26/2025 40.93.23.26 US 1
9/26/2025 40.93.23.91 US 1
9/26/2025 40.93.23.93 US 1
9/26/2025 40.93.23.94 US 1
9/26/2025 40.93.23.95 US 1
9/26/2025 40.93.23.97 US 1
9/26/2025 40.93.2.53 US 1
9/26/2025 40.93.4.0 US 2
9/26/2025 40.93.4.4 US 1
9/26/2025 40.93.4.6 US 2
9/26/2025 40.93.6.108 US 2
9/26/2025 40.93.6.109 US 1
9/26/2025 40.93.64.10 IE 1
9/26/2025 40.93.64.11 IE 1
9/26/2025 40.93.64.13 IE 1
9/26/2025 40.93.64.26 IE 2
9/26/2025 40.93.64.27 IE 1
9/26/2025 40.93.64.4 IE 1
9/26/2025 40.93.64.7 IE 2
9/26/2025 40.93.64.70 IE 1
9/26/2025 40.93.64.86 IE 1
9/26/2025 40.93.65.1 NL 1
9/26/2025 40.93.65.11 NL 1
9/26/2025 40.93.65.15 NL 1
9/26/2025 40.93.65.2 NL 2
9/26/2025 40.93.65.28 NL 1
9/26/2025 40.93.65.50 NL 2
9/26/2025 40.93.65.52 NL 1
9/26/2025 40.93.65.53 NL 1
9/26/2025 40.93.65.54 NL 1
9/26/2025 40.93.65.6 NL 1
9/26/2025 40.93.6.72 US 1
9/26/2025 40.93.69.27 FR 1
9/26/2025 40.93.69.29 FR 1
9/26/2025 40.93.76.76 FR 1
9/26/2025 40.93.76.78 FR 1
9/26/2025 40.93.81.75 NO 1
9/26/2025 40.93.81.77 NO 2
9/26/2025 40.93.81.79 NO 1
9/26/2025 40.93.8.37 US 1
9/26/2025 40.93.8.38 US 1