Network: AT-88-Z
ℹ️ 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.
Failures Detected from this Network
Showing 151-200 of 559 (failures, affecting 1,142 messages)| Date ▼ | Source IP | Country | Messages |
|---|---|---|---|
| 8/6/2025 | US | 1 | |
| 8/6/2025 | US | 1 | |
| 8/1/2025 | GB | 2 | |
| 8/1/2025 | DE | 1 | |
| 8/1/2025 | US | 1 | |
| 8/1/2025 | US | 1 | |
| 7/31/2025 | US | 2 | |
| 7/31/2025 | DE | 1 | |
| 7/31/2025 | US | 2 | |
| 7/31/2025 | US | 1 | |
| 7/31/2025 | US | 2 | |
| 7/23/2025 | GB | 3 | |
| 7/18/2025 | US | 2 | |
| 7/18/2025 | DE | 2 | |
| 7/18/2025 | US | 1 | |
| 7/18/2025 | US | 1 | |
| 7/18/2025 | US | 1 | |
| 7/18/2025 | US | 1 | |
| 7/17/2025 | GB | 3 | |
| 7/17/2025 | US | 1 | |
| 7/11/2025 | GB | 3 | |
| 7/11/2025 | US | 1 | |
| 7/10/2025 | US | 1 | |
| 7/10/2025 | DE | 1 | |
| 7/10/2025 | US | 1 | |
| 7/10/2025 | US | 2 | |
| 7/10/2025 | US | 1 | |
| 7/10/2025 | US | 2 | |
| 7/9/2025 | GB | 2 | |
| 7/9/2025 | US | 1 | |
| 7/9/2025 | US | 1 | |
| 7/9/2025 | US | 1 | |
| 7/2/2025 | GB | 2 | |
| 7/2/2025 | DE | 1 | |
| 7/2/2025 | US | 1 | |
| 7/1/2025 | DE | 1 | |
| 7/1/2025 | US | 1 | |
| 7/1/2025 | US | 1 | |
| 7/1/2025 | US | 2 | |
| 7/1/2025 | US | 1 | |
| 7/1/2025 | US | 1 | |
| 6/28/2025 | US | 3 | |
| 6/28/2025 | IN | 1 | |
| 6/28/2025 | DE | 1 | |
| 6/28/2025 | DE | 1 | |
| 6/28/2025 | US | 1 | |
| 6/28/2025 | US | 1 | |
| 6/27/2025 | US | 9 | |
| 6/27/2025 | IN | 5 | |
| 6/27/2025 | DE | 2 |