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

IP Address: 139.138.34.153 âš  Network Confounder

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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Geolocation Information
Country:
US United States
Coordinates:
37.751, -97.822
WHOIS Information
Network Name:
CISL-7
CIDR:
139.138.24.0/21, 139.138.32.0/20
Reverse DNS:
esa.hc5995-21.iphmx.com
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-24 of 24 (failures, affecting 41 messages)
Date â–² Messages
4/17/2024 1
5/10/2024 3
5/31/2024 1
6/12/2024 1
6/26/2024 3
8/7/2024 2
9/13/2024 3
9/18/2024 2
9/27/2024 3
11/8/2024 2
11/12/2024 1
11/13/2024 1
11/20/2024 2
11/22/2024 1
12/4/2024 2
12/5/2024 1
12/17/2024 2
12/18/2024 2
12/19/2024 3
2/26/2025 1
3/28/2025 1
4/30/2025 1
5/16/2025 1
6/27/2025 1