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 101-146 of 146 (failures, affecting 2,205 messages)| Date ▼ | Messages |
|---|---|
| 4/18/2025 | 8 |
| 4/16/2025 | 11 |
| 4/11/2025 | 9 |
| 4/10/2025 | 4 |
| 3/28/2025 | 19 |
| 3/26/2025 | 1 |
| 3/19/2025 | 7 |
| 3/14/2025 | 4 |
| 3/12/2025 | 10 |
| 2/28/2025 | 11 |
| 2/26/2025 | 40 |
| 2/14/2025 | 41 |
| 1/17/2025 | 39 |
| 1/8/2025 | 42 |
| 12/20/2024 | 17 |
| 12/19/2024 | 52 |
| 12/18/2024 | 53 |
| 12/17/2024 | 5 |
| 12/11/2024 | 27 |
| 12/10/2024 | 28 |
| 12/5/2024 | 59 |
| 12/4/2024 | 35 |
| 11/22/2024 | 1 |
| 11/21/2024 | 29 |
| 11/20/2024 | 91 |
| 11/13/2024 | 10 |
| 11/12/2024 | 98 |
| 11/8/2024 | 3 |
| 11/6/2024 | 5 |
| 10/30/2024 | 3 |
| 10/23/2024 | 121 |
| 10/16/2024 | 7 |
| 9/27/2024 | 127 |
| 9/25/2024 | 15 |
| 9/20/2024 | 23 |
| 9/18/2024 | 110 |
| 9/13/2024 | 98 |
| 9/6/2024 | 1 |
| 8/21/2024 | 1 |
| 8/7/2024 | 2 |
| 6/26/2024 | 1 |
| 6/12/2024 | 3 |
| 5/31/2024 | 5 |
| 5/10/2024 | 4 |
| 4/17/2024 | 4 |
| 3/13/2024 | 18 |