Sh4meful DMARC Spoof Detection
IP Address: 3.93.93.217
ℹ️ Network Annotation: Amazon Web Services (AWS)
Last updated: 1/29/2026
This is (part of) the AWS public cloud. Some email protection services run in AWS, but it is also an attack/spam vector.
About this Data
▶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.
Geolocation Information
- Country:
- US United States
- Region:
- Virginia
- City:
- Ashburn
- Coordinates:
- 39.0469, -77.4903
WHOIS Information
- Network Name:
- AT-88-Z
- CIDR:
3.0.0.0/9- Reverse DNS:
-
mta-4c2eab.us.email.fireeyecloud.com
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-33 of 33 (failures, affecting 76 messages)| Date ▲ | Messages |
|---|---|
| 3/13/2024 | 2 |
| 4/17/2024 | 1 |
| 5/31/2024 | 2 |
| 6/26/2024 | 1 |
| 9/13/2024 | 7 |
| 9/27/2024 | 10 |
| 10/23/2024 | 11 |
| 10/30/2024 | 1 |
| 11/8/2024 | 1 |
| 11/12/2024 | 4 |
| 11/20/2024 | 5 |
| 12/4/2024 | 1 |
| 12/5/2024 | 3 |
| 12/10/2024 | 1 |
| 12/11/2024 | 1 |
| 12/18/2024 | 1 |
| 12/19/2024 | 1 |
| 2/28/2025 | 1 |
| 4/25/2025 | 2 |
| 4/30/2025 | 1 |
| 5/16/2025 | 1 |
| 6/4/2025 | 1 |
| 6/6/2025 | 1 |
| 6/27/2025 | 5 |
| 6/28/2025 | 1 |
| 7/1/2025 | 2 |
| 7/10/2025 | 2 |
| 7/31/2025 | 1 |
| 11/14/2025 | 1 |
| 11/19/2025 | 1 |
| 12/5/2025 | 1 |
| 12/16/2025 | 1 |
| 1/7/2026 | 1 |