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 2,251-2,300 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
7/3/2025 23.103.209.55 US 1
7/3/2025 2603:10b6:a03:60::35 US 1
7/3/2025 40.93.12.28 US 1
7/3/2025 40.93.12.29 US 1
7/3/2025 40.93.1.32 US 1
7/3/2025 40.93.136.17 AU 1
7/3/2025 40.93.14.20 US 1
7/3/2025 40.93.65.10 NL 1
7/3/2025 40.93.65.14 NL 1
7/3/2025 40.93.65.26 NL 1
7/3/2025 40.93.65.27 NL 1
7/3/2025 40.93.65.68 NL 1
7/3/2025 40.93.65.69 NL 1
7/3/2025 40.93.65.70 NL 1
7/3/2025 40.93.69.28 FR 1
7/3/2025 40.93.76.77 FR 1
7/3/2025 40.95.32.41 US 1
7/3/2025 40.95.33.53 US 1
7/3/2025 40.95.35.73 US 1
7/3/2025 40.95.45.78 US 1
7/3/2025 52.101.44.116 US 1
7/3/2025 52.103.171.2 JP 1
7/3/2025 52.103.194.3 JP 1
7/2/2025 104.47.51.44 US 1
7/2/2025 104.47.55.170 US 1
7/2/2025 104.47.55.171 US 1
7/2/2025 104.47.55.175 US 1
7/2/2025 104.47.55.40 US 1
7/2/2025 104.47.55.46 US 1
7/2/2025 104.47.55.47 US 1
7/2/2025 104.47.56.172 US 1
7/2/2025 104.47.56.174 US 1
7/2/2025 104.47.56.42 US 1
7/2/2025 104.47.56.47 US 1
7/2/2025 104.47.57.169 US 1
7/2/2025 104.47.57.172 US 1
7/2/2025 104.47.57.174 US 1
7/2/2025 104.47.57.175 US 1
7/2/2025 104.47.57.46 US 1
7/2/2025 104.47.58.172 US 1
7/2/2025 104.47.58.175 US 1
7/2/2025 104.47.58.40 US 1
7/2/2025 104.47.58.43 US 1
7/2/2025 104.47.59.168 US 1
7/2/2025 104.47.59.170 US 1
7/2/2025 104.47.59.171 US 1
7/2/2025 104.47.59.172 US 1
7/2/2025 104.47.59.174 US 1
7/2/2025 104.47.59.175 US 1
7/2/2025 104.47.66.41 US 1