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

Network: ATT

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:
AT&T
Countries:
US
Unique IPs:
8
CIDR:
12.0.0.0/8
Failures Detected from this Network
Showing 1-38 of 38 (failures, affecting 73 messages)
Date â–² Source IP Country Messages
9/13/2024 12.191.174.98 US 1
9/17/2024 12.16.15.243 US 1
9/18/2024 12.19.225.243 US 1
9/20/2024 12.19.225.243 US 5
9/20/2024 12.6.148.4 US 1
9/26/2024 12.16.15.243 US 1
9/27/2024 12.19.225.243 US 2
9/27/2024 12.6.148.4 US 1
10/22/2024 12.16.15.243 US 1
10/23/2024 12.191.174.98 US 1
10/23/2024 12.19.225.243 US 4
10/30/2024 12.1.110.106 US 1
10/30/2024 12.191.174.98 US 1
11/6/2024 12.1.110.106 US 2
11/12/2024 12.191.174.98 US 1
11/12/2024 12.19.225.243 US 1
11/13/2024 12.1.110.106 US 2
11/19/2024 12.16.15.243 US 1
11/20/2024 12.1.110.106 US 2
11/20/2024 12.19.225.243 US 2
12/4/2024 12.1.110.106 US 2
12/4/2024 12.191.174.98 US 1
12/5/2024 12.0.130.123 US 1
12/5/2024 12.19.225.243 US 3
12/5/2024 12.6.148.4 US 1
12/9/2024 12.16.15.243 US 1
12/11/2024 12.97.107.130 US 3
12/18/2024 12.0.130.123 US 1
12/18/2024 12.16.15.243 US 1
12/19/2024 12.0.130.123 US 1
12/20/2024 12.97.107.130 US 3
1/8/2025 12.97.107.130 US 3
1/17/2025 12.97.107.130 US 3
2/14/2025 12.97.107.130 US 3
2/26/2025 12.97.107.130 US 3
6/27/2025 12.0.130.123 US 1
6/27/2025 12.109.187.5 US 5
6/28/2025 12.109.187.5 US 5