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 3,301-3,350 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
5/2/2025 40.93.194.16 US 1
5/2/2025 40.93.20.0 US 1
5/2/2025 40.93.200.79 US 1
5/2/2025 40.93.20.4 US 1
5/2/2025 40.93.20.54 US 2
5/2/2025 40.93.20.59 US 1
5/2/2025 40.93.20.60 US 1
5/2/2025 40.93.20.62 US 2
5/2/2025 40.93.6.26 US 1
5/2/2025 40.93.6.34 US 2
5/2/2025 40.93.6.4 US 1
5/2/2025 40.93.64.13 IE 2
5/2/2025 40.93.64.21 IE 1
5/2/2025 40.93.65.14 NL 1
5/2/2025 40.93.65.29 NL 1
5/2/2025 40.93.65.55 NL 1
5/2/2025 40.93.65.7 NL 1
5/2/2025 40.93.6.74 US 2
5/2/2025 40.93.6.76 US 1
5/2/2025 40.93.6.78 US 1
5/2/2025 40.93.76.5 FR 1
5/2/2025 40.95.21.76 US 1
5/2/2025 40.95.22.49 US 1
5/2/2025 40.95.22.58 US 1
5/2/2025 40.95.31.85 US 1
5/2/2025 40.95.34.168 US 1
5/2/2025 40.95.35.81 US 1
5/2/2025 40.95.36.156 US 1
5/2/2025 40.95.36.58 US 1
5/2/2025 40.95.36.81 US 1
5/2/2025 40.95.37.78 US 1
5/2/2025 40.95.48.66 US 1
5/2/2025 52.101.51.118 US 1
5/2/2025 52.101.51.56 US 1
5/2/2025 52.101.51.84 US 1
5/2/2025 52.101.61.90 US 1
5/2/2025 52.101.62.96 US 1
5/2/2025 52.103.140.9 US 1
5/1/2025 104.47.11.105 IE 1
5/1/2025 104.47.11.236 NL 1
5/1/2025 104.47.11.40 AT 1
5/1/2025 104.47.11.43 AT 1
5/1/2025 104.47.17.104 IE 1
5/1/2025 104.47.17.112 IE 1
5/1/2025 104.47.17.170 AT 1
5/1/2025 104.47.17.172 AT 1
5/1/2025 104.47.17.173 AT 1
5/1/2025 104.47.17.176 AT 1
5/1/2025 104.47.17.177 AT 2
5/1/2025 104.47.18.110 NL 1