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 2,701-2,750 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
6/19/2025 104.47.70.40 US 1
6/19/2025 104.47.70.49 US 1
6/19/2025 104.47.73.172 US 1
6/19/2025 104.47.73.45 US 1
6/19/2025 104.47.74.43 US 1
6/19/2025 40.93.12.23 US 1
6/19/2025 40.93.131.26 IN 1
6/19/2025 40.93.132.1 IN 1
6/19/2025 40.93.132.31 IN 1
6/19/2025 40.93.136.28 AU 1
6/19/2025 40.93.20.55 US 1
6/19/2025 40.93.64.26 IE 1
6/19/2025 40.93.64.3 IE 1
6/19/2025 40.93.64.4 IE 1
6/19/2025 40.93.76.74 FR 1
6/19/2025 40.93.81.74 NO 1
6/19/2025 40.95.20.67 US 1
6/19/2025 40.95.22.87 US 1
6/19/2025 40.95.31.62 US 1
6/19/2025 40.95.36.52 US 1
6/19/2025 40.95.37.60 US 1
6/19/2025 40.95.38.57 US 1
6/19/2025 52.101.57.100 US 1
6/19/2025 52.103.128.18 US 1
6/18/2025 104.47.11.240 NL 1
6/18/2025 104.47.11.42 AT 1
6/18/2025 104.47.55.168 US 1
6/18/2025 104.47.55.170 US 1
6/18/2025 104.47.55.48 US 2
6/18/2025 104.47.56.41 US 1
6/18/2025 104.47.57.171 US 1
6/18/2025 104.47.57.172 US 1
6/18/2025 104.47.57.175 US 1
6/18/2025 104.47.57.177 US 1
6/18/2025 104.47.58.170 US 1
6/18/2025 104.47.58.45 US 1
6/18/2025 104.47.59.170 US 1
6/18/2025 104.47.59.171 US 2
6/18/2025 104.47.66.40 US 1
6/18/2025 104.47.66.46 US 1
6/18/2025 104.47.66.47 US 1
6/18/2025 104.47.70.44 US 1
6/18/2025 104.47.73.171 US 1
6/18/2025 104.47.73.174 US 1
6/18/2025 104.47.73.44 US 2
6/18/2025 104.47.74.46 US 1
6/18/2025 40.107.101.53 US 1
6/18/2025 40.107.237.43 US 1
6/18/2025 40.107.243.65 US 1
6/18/2025 40.107.92.104 US 1