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 51-100 of 146 (failures, affecting 2,205 messages)| Date ▼ | Messages |
|---|---|
| 9/25/2025 | 6 |
| 9/24/2025 | 26 |
| 9/20/2025 | 7 |
| 9/19/2025 | 11 |
| 9/18/2025 | 8 |
| 9/17/2025 | 1 |
| 9/16/2025 | 3 |
| 9/13/2025 | 16 |
| 9/12/2025 | 24 |
| 9/11/2025 | 11 |
| 9/10/2025 | 9 |
| 9/9/2025 | 3 |
| 9/6/2025 | 4 |
| 9/5/2025 | 5 |
| 9/4/2025 | 8 |
| 9/3/2025 | 2 |
| 8/22/2025 | 16 |
| 8/6/2025 | 17 |
| 8/1/2025 | 8 |
| 7/31/2025 | 12 |
| 7/23/2025 | 9 |
| 7/18/2025 | 12 |
| 7/17/2025 | 6 |
| 7/11/2025 | 9 |
| 7/10/2025 | 12 |
| 7/9/2025 | 25 |
| 7/3/2025 | 16 |
| 7/2/2025 | 4 |
| 7/1/2025 | 17 |
| 6/28/2025 | 50 |
| 6/27/2025 | 122 |
| 6/26/2025 | 9 |
| 6/25/2025 | 18 |
| 6/19/2025 | 16 |
| 6/18/2025 | 3 |
| 6/13/2025 | 1 |
| 6/12/2025 | 11 |
| 6/11/2025 | 8 |
| 6/6/2025 | 1 |
| 6/4/2025 | 30 |
| 5/28/2025 | 11 |
| 5/23/2025 | 2 |
| 5/16/2025 | 2 |
| 5/9/2025 | 11 |
| 5/7/2025 | 1 |
| 5/2/2025 | 18 |
| 5/1/2025 | 13 |
| 4/30/2025 | 2 |
| 4/25/2025 | 16 |
| 4/23/2025 | 7 |