Shame on you, stupid spammers.. Sh4meful  DMARC Spoof Detection 🦋 Bluesky

Network: LEIDOS-149-8-0-0-16

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
Countries:
US
Unique IPs:
4
CIDR:
149.8.0.0/16
Failures Detected from this Network
Showing 1-10 of 10 (failures, affecting 29 messages)
Date â–¼ Source IP Country Messages
10/1/2025 149.8.13.133 US 1
10/1/2025 149.8.13.136 US 5
9/26/2025 149.8.13.133 US 4
9/26/2025 149.8.13.135 US 2
9/26/2025 149.8.13.136 US 3
9/24/2025 149.8.13.133 US 4
9/24/2025 149.8.13.136 US 3
9/17/2025 149.8.13.133 US 4
9/17/2025 149.8.13.136 US 2
2/14/2025 149.8.132.36 US 1