Sh4meful
IP Address: 52.212.19.177 ⚠ IP Confounder
⚠ IP Confounder Detected: Avanan/Check Point Email Security
Breaks DKIM signatures during email processing
Breaks DKIM signatures during email processing
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:
- AT-88-Z
- CIDR:
52.208.0.0/13, 52.223.0.0/17, 52.220.0.0/15, 52.192.0.0/12, 52.223.128.0/18, 52.222.0.0/16, 52.216.0.0/14- Reverse DNS:
-
eu.cloud-sec-av.com
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-50 of 146 (failures, affecting 2,205 messages)| Date ▼ | Messages |
|---|---|
| 1/31/2026 | 3 |
| 1/30/2026 | 6 |
| 1/28/2026 | 1 |
| 1/27/2026 | 1 |
| 1/17/2026 | 3 |
| 1/16/2026 | 6 |
| 1/14/2026 | 1 |
| 1/13/2026 | 1 |
| 1/10/2026 | 3 |
| 1/9/2026 | 7 |
| 1/7/2026 | 1 |
| 1/6/2026 | 1 |
| 12/20/2025 | 6 |
| 12/19/2025 | 4 |
| 12/18/2025 | 1 |
| 12/17/2025 | 3 |
| 12/13/2025 | 3 |
| 12/12/2025 | 6 |
| 12/10/2025 | 1 |
| 12/9/2025 | 1 |
| 12/6/2025 | 6 |
| 12/5/2025 | 8 |
| 12/4/2025 | 1 |
| 12/3/2025 | 3 |
| 12/2/2025 | 1 |
| 11/22/2025 | 9 |
| 11/21/2025 | 7 |
| 11/20/2025 | 1 |
| 11/19/2025 | 5 |
| 11/18/2025 | 1 |
| 11/15/2025 | 7 |
| 11/14/2025 | 4 |
| 11/13/2025 | 1 |
| 11/12/2025 | 4 |
| 10/25/2025 | 7 |
| 10/24/2025 | 8 |
| 10/22/2025 | 2 |
| 10/21/2025 | 1 |
| 10/11/2025 | 10 |
| 10/10/2025 | 10 |
| 10/9/2025 | 1 |
| 10/8/2025 | 3 |
| 10/7/2025 | 1 |
| 10/4/2025 | 14 |
| 10/3/2025 | 15 |
| 10/2/2025 | 8 |
| 10/1/2025 | 3 |
| 9/30/2025 | 3 |
| 9/27/2025 | 10 |
| 9/26/2025 | 31 |