Sh4meful DMARC Spoof Detection
IP Address: 3.93.93.219
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-112633.us.email.fireeyecloud.com
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-25 of 25 (failures, affecting 53 messages)| Date ▼ | Messages |
|---|---|
| 1/7/2026 | 1 |
| 12/19/2025 | 1 |
| 9/17/2025 | 1 |
| 9/12/2025 | 1 |
| 8/22/2025 | 1 |
| 7/18/2025 | 1 |
| 7/9/2025 | 1 |
| 7/2/2025 | 1 |
| 6/27/2025 | 4 |
| 4/30/2025 | 1 |
| 3/14/2025 | 1 |
| 1/17/2025 | 1 |
| 12/19/2024 | 2 |
| 12/5/2024 | 4 |
| 11/20/2024 | 7 |
| 11/12/2024 | 3 |
| 10/30/2024 | 1 |
| 10/23/2024 | 4 |
| 9/27/2024 | 7 |
| 9/20/2024 | 1 |
| 9/18/2024 | 2 |
| 9/13/2024 | 4 |
| 9/6/2024 | 1 |
| 8/7/2024 | 1 |
| 5/10/2024 | 1 |