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 2,901-2,950 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
6/4/2025 104.47.70.46 US 1
6/4/2025 104.47.70.47 US 1
6/4/2025 104.47.70.48 US 2
6/4/2025 104.47.73.172 US 3
6/4/2025 104.47.73.173 US 1
6/4/2025 104.47.73.41 US 1
6/4/2025 104.47.73.44 US 1
6/4/2025 104.47.73.47 US 1
6/4/2025 104.47.73.48 US 1
6/4/2025 104.47.74.42 US 1
6/4/2025 104.47.74.46 US 1
6/4/2025 104.47.74.47 US 1
6/4/2025 23.103.199.144 US 1
6/4/2025 23.103.208.53 US 1
6/4/2025 23.103.209.88 US 1
6/4/2025 2603:10b6:610:59::16 US 1
6/4/2025 2603:10b6:803:41::36 US 1
6/4/2025 2603:10b6:a03:331::17 US 1
6/4/2025 40.107.103.72 AT 1
6/4/2025 40.107.92.110 US 1
6/4/2025 40.107.92.57 US 1
6/4/2025 40.93.12.21 US 1
6/4/2025 40.93.12.22 US 2
6/4/2025 40.93.1.36 US 2
6/4/2025 40.93.1.38 US 1
6/4/2025 40.93.14.11 US 1
6/4/2025 40.93.14.15 US 1
6/4/2025 40.93.14.30 US 1
6/4/2025 40.93.194.79 US 1
6/4/2025 40.93.20.51 US 2
6/4/2025 40.93.6.4 US 1
6/4/2025 40.93.64.10 IE 1
6/4/2025 40.93.64.12 IE 1
6/4/2025 40.93.64.13 IE 1
6/4/2025 40.93.64.26 IE 1
6/4/2025 40.93.64.27 IE 1
6/4/2025 40.93.64.31 IE 2
6/4/2025 40.93.65.2 NL 2
6/4/2025 40.93.65.26 NL 1
6/4/2025 40.93.65.30 NL 1
6/4/2025 40.93.65.31 NL 1
6/4/2025 40.93.65.6 NL 1
6/4/2025 40.93.65.7 NL 1
6/4/2025 40.93.69.26 FR 1
6/4/2025 40.93.69.28 FR 1
6/4/2025 40.93.69.31 FR 1
6/4/2025 40.93.81.77 NO 4
6/4/2025 40.93.81.78 NO 1
6/4/2025 40.95.31.65 US 1
6/4/2025 40.95.32.59 US 1