Sh4mefulNetwork: ESA
This page shows DMARC authentication failures originating from the ESA network. Learn more about this data.
Network Information
- WHOIS Owner:
- EE
- Countries:
- EE
- Unique IPs:
- 2
- CIDR:
91.199.154.0/24
Analysis
This network has contributed 2 unique IP addresses across 2 failed authentication events, accounting for 5 messages. Activity spans from November 4, 2024 to July 20, 2026, with peak volume in November 2024 (1 event). The top countries by failure volume are Estonia (100%). The most active source IPs from this network include 91.199.154.105 (1 failure), 91.199.154.92 (1 failure). Failures from ESA are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.
Failures Detected from this Network
Showing 1-2 of 2 failures, affecting 5 messages| Date ▼ | Source IP | Country | Messages |
|---|---|---|---|
| 7/20/2026 | EE | 1 | |
| 11/4/2024 | EE | 4 |
Countries