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 151-200 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
12/18/2025 40.93.14.14 US 1
12/18/2025 40.93.1.75 US 1
12/18/2025 40.93.20.101 US 2
12/18/2025 40.93.20.102 US 1
12/18/2025 40.93.20.99 US 1
12/18/2025 40.93.23.29 US 1
12/18/2025 40.93.23.35 US 1
12/18/2025 40.93.23.88 US 1
12/18/2025 40.93.23.98 US 1
12/18/2025 40.93.4.5 US 1
12/18/2025 40.93.4.9 US 1
12/18/2025 40.93.6.107 US 1
12/18/2025 40.93.6.108 US 1
12/18/2025 40.93.6.74 US 1
12/18/2025 52.101.46.38 US 1
12/17/2025 40.107.201.92 US 1
12/17/2025 40.107.208.98 US 1
12/17/2025 40.93.10.76 US 1
12/17/2025 40.93.10.91 US 1
12/17/2025 40.93.1.3 US 1
12/17/2025 40.93.196.131 US 1
12/17/2025 40.93.23.29 US 1
12/16/2025 40.93.12.4 US 1
12/16/2025 40.93.12.50 US 1
12/16/2025 40.93.12.54 US 1
12/16/2025 52.101.48.2 US 1
12/13/2025 40.93.1.73 US 1
12/13/2025 40.93.23.93 US 1
12/13/2025 40.93.4.9 US 1
12/12/2025 40.93.10.92 US 1
12/12/2025 40.93.131.30 IN 1
12/12/2025 40.93.132.2 IN 1
12/12/2025 40.93.4.8 US 1
12/12/2025 40.93.4.9 US 1
12/12/2025 40.93.64.67 IE 1
12/12/2025 40.93.64.71 IE 1
12/12/2025 40.93.64.81 IE 1
12/12/2025 40.93.64.85 IE 1
12/12/2025 40.93.65.26 NL 1
12/12/2025 40.93.65.30 NL 1
12/11/2025 40.93.10.91 US 1
12/11/2025 40.93.12.3 US 1
12/11/2025 40.93.1.37 US 1
12/11/2025 40.93.1.73 US 1
12/11/2025 40.93.1.79 US 1
12/11/2025 40.93.64.15 IE 1
12/11/2025 40.93.65.1 NL 1
12/11/2025 40.93.8.61 US 1
12/10/2025 40.93.10.94 US 1
12/10/2025 40.93.1.106 US 1