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.

(More)

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 51-100 of 9,818 (failures, affecting 12,565 messages)
Date ▼ Source IP Country Messages
1/15/2026 40.93.4.0 US 1
1/15/2026 40.93.6.107 US 1
1/15/2026 40.93.6.109 US 1
1/15/2026 40.93.76.78 FR 1
1/15/2026 52.103.136.9 US 1
1/14/2026 40.93.10.101 US 1
1/14/2026 40.93.10.99 US 1
1/14/2026 40.93.1.111 US 1
1/14/2026 40.93.12.5 US 1
1/14/2026 40.93.14.46 US 1
1/14/2026 40.93.1.75 US 1
1/14/2026 40.93.20.103 US 1
1/14/2026 40.93.20.97 US 1
1/14/2026 40.93.23.92 US 1
1/14/2026 40.93.4.4 US 1
1/14/2026 40.93.6.106 US 1
1/14/2026 40.93.6.108 US 1
1/14/2026 40.93.64.27 IE 1
1/14/2026 40.93.65.31 NL 1
1/14/2026 40.93.65.49 NL 1
1/13/2026 40.93.198.124 US 1
1/13/2026 52.101.56.140 US 1
1/10/2026 40.93.1.106 US 1
1/10/2026 40.93.14.97 US 1
1/10/2026 40.93.23.92 US 1
1/9/2026 40.93.10.89 US 1
1/9/2026 40.93.131.6 IN 1
1/9/2026 40.93.132.24 IN 1
1/9/2026 40.93.214.101 SE 1
1/9/2026 40.93.4.4 US 1
1/9/2026 40.93.64.65 IE 1
1/9/2026 40.93.64.69 IE 1
1/9/2026 40.93.65.48 NL 1
1/9/2026 40.93.69.28 FR 1
1/9/2026 40.93.76.76 FR 1
1/8/2026 40.93.10.102 US 1
1/8/2026 40.93.14.99 US 1
1/8/2026 40.93.20.103 US 1
1/8/2026 40.93.23.99 US 1
1/8/2026 40.93.4.11 US 1
1/8/2026 40.93.6.104 US 1
1/8/2026 40.93.6.105 US 1
1/8/2026 40.93.65.30 NL 1
1/8/2026 40.93.6.75 US 1
1/8/2026 40.93.69.26 FR 1
1/8/2026 52.103.145.17 US 1
1/7/2026 40.93.1.106 US 1
1/7/2026 40.93.14.100 US 1
1/7/2026 40.93.14.102 US 1
1/7/2026 40.93.14.96 US 1