Sh4mefulNetwork: AMAZO-4
This is (part of) the AWS public cloud. Some email protection services run in AWS, but it is also an attack/spam vector.
This page shows DMARC authentication failures originating from the AMAZO-4 network. Learn more about this data.
Analysis
This network has contributed 9 unique IP addresses across 61 failed authentication events, accounting for 70 messages. Activity spans from March 5, 2024 to June 20, 2026, with peak volume in September 2025 (11 events). The top countries by failure volume are United States (100%). The most active source IPs from this network include 44.206.213.130 (19 failures), 44.206.222.91 (15 failures), 44.209.220.188 (10 failures). Failures from AMAZO-4 (Amazon) are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.
Failures Detected from this Network
Showing 1-50 of 61 failures, affecting 70 messages| Date ▼ | Source IP | Country | Messages |
|---|---|---|---|
| 6/19/2026 | US | 1 | |
| 6/5/2026 | US | 1 | |
| 4/10/2026 | US | 1 | |
| 4/10/2026 | US | 1 | |
| 3/27/2026 | US | 1 | |
| 3/27/2026 | US | 1 | |
| 3/13/2026 | US | 1 | |
| 2/27/2026 | US | 1 | |
| 1/31/2026 | US | 1 | |
| 1/17/2026 | US | 1 | |
| 1/10/2026 | US | 1 | |
| 12/13/2025 | US | 1 | |
| 12/6/2025 | US | 1 | |
| 11/22/2025 | US | 1 | |
| 11/21/2025 | US | 2 | |
| 11/14/2025 | US | 2 | |
| 10/25/2025 | US | 1 | |
| 10/24/2025 | US | 1 | |
| 10/11/2025 | US | 1 | |
| 10/4/2025 | US | 1 | |
| 10/3/2025 | US | 1 | |
| 10/1/2025 | US | 1 | |
| 9/26/2025 | US | 1 | |
| 9/26/2025 | US | 1 | |
| 9/26/2025 | US | 2 | |
| 9/24/2025 | US | 1 | |
| 9/24/2025 | US | 1 | |
| 9/20/2025 | US | 1 | |
| 9/17/2025 | US | 1 | |
| 9/13/2025 | US | 1 | |
| 9/10/2025 | US | 2 | |
| 9/10/2025 | US | 1 | |
| 9/3/2025 | US | 2 | |
| 8/1/2025 | US | 1 | |
| 8/1/2025 | US | 1 | |
| 7/31/2025 | US | 1 | |
| 7/23/2025 | US | 2 | |
| 7/18/2025 | US | 1 | |
| 7/17/2025 | US | 1 | |
| 7/17/2025 | US | 1 | |
| 7/11/2025 | US | 1 | |
| 7/11/2025 | US | 1 | |
| 7/10/2025 | US | 1 | |
| 7/1/2025 | US | 1 | |
| 3/28/2025 | US | 1 | |
| 3/28/2025 | US | 1 | |
| 3/28/2025 | US | 2 | |
| 3/28/2025 | US | 1 | |
| 3/28/2025 | US | 1 | |
| 3/19/2025 | US | 1 |