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

Network: CC-17

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:
ColoCrossing
Countries:
US
Unique IPs:
14
CIDR:
107.172.0.0/14
Failures Detected from this Network
Showing 1-50 of 62 (failures, affecting 86 messages)
Date â–¼ Source IP Country Messages
10/23/2025 107.173.177.157 US 1
10/17/2025 107.173.177.157 US 1
10/15/2025 107.173.177.157 US 1
10/7/2025 107.173.177.148 US 1
10/5/2025 107.172.44.154 US 1
10/4/2025 107.173.177.148 US 1
10/3/2025 107.173.177.158 US 1
10/2/2025 107.173.177.158 US 1
9/17/2025 107.172.44.154 US 1
9/16/2025 107.172.44.154 US 1
8/1/2025 107.172.44.137 US 1
6/3/2025 107.172.44.133 US 1
6/1/2025 107.172.44.133 US 1
5/30/2025 107.172.44.133 US 1
5/25/2025 107.172.44.133 US 1
5/20/2025 107.173.177.151 US 1
5/2/2025 107.173.177.151 US 1
4/29/2025 107.173.177.142 US 1
4/6/2025 107.173.177.172 US 1
12/9/2024 107.174.142.113 US 1
12/8/2024 107.174.142.113 US 1
12/6/2024 107.174.142.113 US 1
12/4/2024 107.174.142.113 US 1
12/3/2024 107.174.142.113 US 1
11/28/2024 107.174.142.113 US 1
11/23/2024 107.174.142.113 US 1
11/21/2024 107.174.142.113 US 2
11/20/2024 107.174.142.113 US 2
9/10/2024 107.172.21.189 US 1
8/20/2024 107.174.142.126 US 2
8/19/2024 107.174.142.126 US 3
8/16/2024 107.174.142.126 US 1
8/15/2024 107.174.142.126 US 2
8/13/2024 107.174.142.126 US 3
8/12/2024 107.174.142.126 US 4
7/18/2024 107.172.44.147 US 1
7/17/2024 107.172.44.147 US 1
7/16/2024 107.172.44.147 US 1
7/11/2024 107.172.44.147 US 1
7/8/2024 107.172.44.147 US 2
7/6/2024 107.172.44.147 US 1
7/5/2024 107.172.44.147 US 1
7/4/2024 107.172.44.147 US 1
6/28/2024 107.172.44.147 US 1
6/26/2024 107.172.44.147 US 2
6/25/2024 107.172.44.147 US 1
6/24/2024 107.172.44.147 US 3
6/20/2024 107.172.44.147 US 1
6/18/2024 107.172.44.147 US 6
5/15/2024 107.174.142.126 US 2