Sh4meful
IP Address: 99.80.189.20 ⚠ IP Confounder
⚠ IP Confounder Detected: Fortinet Workspace Security - EU
This IP is associated with a legitimate email security service that may break DKIM/SPF authentication. Failed attempts from this source may not represent actual spoofing.
This IP is associated with a legitimate email security service that may break DKIM/SPF authentication. Failed attempts from this source may not represent actual spoofing.
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:
- IE Ireland
- Region:
- Leinster
- City:
- Dublin
- Coordinates:
- 53.3382, -6.2591
WHOIS Information
- Network Name:
- AMAZO-4
- CIDR:
99.78.128.0/17, 99.79.0.0/16, 99.82.0.0/17, 99.82.128.0/18, 99.80.0.0/15- Reverse DNS:
-
nat.eu.perception-point.io
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-50 of 56 (failures, affecting 279 messages)| Date ▲ | Messages |
|---|---|
| 3/13/2024 | 1 |
| 11/12/2024 | 3 |
| 11/20/2024 | 4 |
| 12/4/2024 | 2 |
| 12/5/2024 | 3 |
| 12/11/2024 | 5 |
| 12/17/2024 | 6 |
| 12/18/2024 | 32 |
| 12/19/2024 | 27 |
| 12/20/2024 | 1 |
| 1/8/2025 | 1 |
| 1/17/2025 | 1 |
| 2/14/2025 | 3 |
| 2/26/2025 | 2 |
| 3/14/2025 | 7 |
| 3/28/2025 | 4 |
| 4/16/2025 | 1 |
| 4/18/2025 | 1 |
| 5/1/2025 | 1 |
| 5/2/2025 | 22 |
| 5/7/2025 | 1 |
| 5/23/2025 | 1 |
| 6/4/2025 | 23 |
| 6/12/2025 | 3 |
| 6/25/2025 | 2 |
| 6/27/2025 | 8 |
| 7/1/2025 | 5 |
| 7/2/2025 | 4 |
| 7/9/2025 | 3 |
| 7/10/2025 | 4 |
| 7/18/2025 | 5 |
| 7/31/2025 | 5 |
| 9/10/2025 | 6 |
| 9/12/2025 | 8 |
| 9/17/2025 | 2 |
| 9/19/2025 | 2 |
| 9/26/2025 | 6 |
| 10/1/2025 | 2 |
| 10/3/2025 | 8 |
| 10/8/2025 | 2 |
| 10/10/2025 | 8 |
| 10/24/2025 | 6 |
| 11/14/2025 | 5 |
| 11/19/2025 | 1 |
| 11/21/2025 | 7 |
| 12/3/2025 | 1 |
| 12/5/2025 | 7 |
| 12/10/2025 | 1 |
| 12/12/2025 | 2 |
| 12/19/2025 | 5 |