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 2,501-2,550 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
6/27/2025 104.47.57.42 US 1
6/27/2025 104.47.57.43 US 1
6/27/2025 104.47.57.44 US 1
6/27/2025 104.47.57.48 US 1
6/27/2025 104.47.57.49 US 1
6/27/2025 104.47.58.168 US 1
6/27/2025 104.47.58.169 US 2
6/27/2025 104.47.58.173 US 2
6/27/2025 104.47.58.174 US 1
6/27/2025 104.47.58.175 US 3
6/27/2025 104.47.58.176 US 1
6/27/2025 104.47.58.40 US 3
6/27/2025 104.47.58.41 US 1
6/27/2025 104.47.58.43 US 1
6/27/2025 104.47.58.44 US 2
6/27/2025 104.47.58.47 US 2
6/27/2025 104.47.58.48 US 3
6/27/2025 104.47.59.168 US 3
6/27/2025 104.47.59.169 US 2
6/27/2025 104.47.59.170 US 1
6/27/2025 104.47.59.171 US 1
6/27/2025 104.47.59.173 US 1
6/27/2025 104.47.59.177 US 2
6/27/2025 104.47.66.40 US 1
6/27/2025 104.47.66.43 US 2
6/27/2025 104.47.66.44 US 3
6/27/2025 104.47.66.45 US 2
6/27/2025 104.47.66.46 US 1
6/27/2025 104.47.70.40 US 1
6/27/2025 104.47.70.43 US 1
6/27/2025 104.47.70.45 US 1
6/27/2025 104.47.70.47 US 2
6/27/2025 104.47.70.48 US 1
6/27/2025 104.47.73.168 US 1
6/27/2025 104.47.73.169 US 1
6/27/2025 104.47.73.177 US 2
6/27/2025 104.47.73.40 US 2
6/27/2025 104.47.73.41 US 1
6/27/2025 104.47.73.42 US 1
6/27/2025 104.47.73.43 US 1
6/27/2025 104.47.73.47 US 1
6/27/2025 104.47.74.40 US 1
6/27/2025 104.47.74.43 US 1
6/27/2025 104.47.74.47 US 2
6/27/2025 104.47.74.48 US 2
6/27/2025 23.103.208.67 US 1
6/27/2025 23.103.209.44 US 1
6/27/2025 23.103.209.47 US 1
6/27/2025 2603:10b6:208:32f::20 US 1
6/27/2025 2603:10b6:22e:400:0:1004:0:10 US 1