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 401-450 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
11/19/2025 40.93.1.36 US 1
11/19/2025 40.93.20.96 US 1
11/19/2025 40.93.23.25 US 1
11/19/2025 40.93.23.29 US 1
11/19/2025 40.93.4.5 US 1
11/19/2025 40.93.4.8 US 1
11/19/2025 40.93.6.109 US 1
11/19/2025 40.93.64.14 IE 1
11/19/2025 40.93.64.70 IE 1
11/19/2025 40.93.65.27 NL 1
11/19/2025 40.93.65.29 NL 1
11/19/2025 40.93.6.72 US 1
11/19/2025 40.93.69.31 FR 1
11/19/2025 52.101.52.121 US 1
11/19/2025 52.101.62.95 US 1
11/18/2025 40.93.194.122 US 1
11/18/2025 52.101.48.106 US 2
11/15/2025 40.93.10.96 US 1
11/15/2025 40.93.14.96 US 1
11/15/2025 40.93.64.84 IE 1
11/15/2025 40.93.65.53 NL 1
11/14/2025 40.93.10.96 US 1
11/14/2025 40.93.1.107 US 1
11/14/2025 40.93.1.110 US 2
11/14/2025 40.93.12.5 US 1
11/14/2025 40.93.1.33 US 1
11/14/2025 40.93.214.102 SE 1
11/14/2025 40.93.214.77 SE 1
11/14/2025 40.93.214.78 SE 1
11/14/2025 40.93.214.97 SE 1
11/14/2025 40.93.23.25 US 1
11/14/2025 40.93.23.88 US 1
11/14/2025 40.93.23.90 US 1
11/14/2025 40.93.23.91 US 1
11/14/2025 40.93.23.95 US 1
11/14/2025 40.93.64.67 IE 1
11/14/2025 40.93.64.85 IE 1
11/14/2025 40.93.65.53 NL 1
11/13/2025 40.107.201.11 US 1
11/13/2025 40.93.10.101 US 1
11/13/2025 40.93.10.103 US 1
11/13/2025 40.93.10.73 US 1
11/13/2025 40.93.10.97 US 2
11/13/2025 40.93.10.99 US 1
11/13/2025 40.93.12.16 US 2
11/13/2025 40.93.12.21 US 1
11/13/2025 40.93.14.42 US 1
11/13/2025 40.93.20.103 US 1
11/13/2025 40.93.20.49 US 1
11/13/2025 40.93.20.97 US 2