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

Network: AMAZON-02

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:
Amazon
Countries:
US
Unique IPs:
9
CIDR:
72.21.192.0/19
Failures Detected from this Network
Showing 1-9 of 9 (failures, affecting 9 messages)
Date â–¼ Source IP Country Messages
10/3/2025 72.21.217.117 US 1
10/3/2025 72.21.217.16 US 1
9/26/2025 72.21.217.100 US 1
9/24/2025 72.21.217.114 US 1
8/1/2025 72.21.217.74 US 1
7/23/2025 72.21.217.11 US 1
7/23/2025 72.21.217.72 US 1
7/17/2025 72.21.217.81 US 1
7/11/2025 72.21.217.70 US 1