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 2,801-2,850 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
6/12/2025 52.101.85.102 US 1
6/11/2025 104.47.55.43 US 1
6/11/2025 104.47.56.45 US 1
6/11/2025 104.47.58.44 US 1
6/11/2025 104.47.59.168 US 1
6/11/2025 104.47.66.48 US 1
6/11/2025 104.47.70.49 US 1
6/11/2025 104.47.73.169 US 1
6/11/2025 40.107.102.66 US 1
6/11/2025 40.93.64.31 IE 1
6/11/2025 40.93.65.66 NL 1
6/11/2025 40.93.65.69 NL 1
6/11/2025 40.93.81.77 NO 1
6/11/2025 40.95.34.60 US 1
6/11/2025 40.95.36.56 US 1
6/6/2025 104.47.18.106 NL 1
6/6/2025 104.47.30.105 AT 1
6/6/2025 104.47.57.49 US 1
6/6/2025 104.47.58.173 US 1
6/6/2025 104.47.58.175 US 1
6/6/2025 104.47.58.47 US 1
6/6/2025 104.47.70.44 US 1
6/6/2025 104.47.70.47 US 2
6/6/2025 104.47.70.48 US 1
6/6/2025 104.47.73.168 US 1
6/6/2025 104.47.73.40 US 1
6/6/2025 104.47.74.49 US 1
6/6/2025 40.93.1.7 US 1
6/6/2025 40.93.64.31 IE 1
6/6/2025 40.93.65.70 NL 1
6/6/2025 40.95.38.57 US 1
6/6/2025 52.100.167.245 US 1
6/5/2025 104.47.66.46 US 1
6/4/2025 104.47.17.104 IE 1
6/4/2025 104.47.18.104 NL 2
6/4/2025 104.47.51.42 US 2
6/4/2025 104.47.51.44 US 1
6/4/2025 104.47.55.168 US 1
6/4/2025 104.47.55.169 US 1
6/4/2025 104.47.55.170 US 4
6/4/2025 104.47.55.173 US 1
6/4/2025 104.47.55.174 US 2
6/4/2025 104.47.55.176 US 3
6/4/2025 104.47.55.177 US 1
6/4/2025 104.47.55.40 US 1
6/4/2025 104.47.55.41 US 1
6/4/2025 104.47.55.42 US 3
6/4/2025 104.47.55.43 US 1
6/4/2025 104.47.55.46 US 3
6/4/2025 104.47.55.47 US 2