Sh4meful
IP Address: 52.11.209.211 ⚠ IP Confounder
⚠ IP Confounder Detected: Cisco IronPort/Cisco Secure Email
An enterprise email security appliance that uses SenderBase for real-time threat detection, spam filtering, and malware protection. It can be configured using MX records for mail routing. This is one of those mx endpoints.
An enterprise email security appliance that uses SenderBase for real-time threat detection, spam filtering, and malware protection. It can be configured using MX records for mail routing. This is one of those mx endpoints.
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:
- US United States
- Region:
- Oregon
- City:
- Boardman
- Coordinates:
- 45.8401, -119.705
WHOIS Information
- Network Name:
- AT-88-Z
- CIDR:
52.0.0.0/10, 52.64.0.0/12- Reverse DNS:
-
mailstream-uswest-egress002.mxrecord.io
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-50 of 67 (failures, affecting 159 messages)| Date ▲ | Messages |
|---|---|
| 3/13/2024 | 7 |
| 5/10/2024 | 1 |
| 5/31/2024 | 1 |
| 6/12/2024 | 4 |
| 6/26/2024 | 1 |
| 8/7/2024 | 1 |
| 9/6/2024 | 2 |
| 9/13/2024 | 8 |
| 9/18/2024 | 9 |
| 9/20/2024 | 2 |
| 9/25/2024 | 5 |
| 9/27/2024 | 7 |
| 10/23/2024 | 5 |
| 10/30/2024 | 1 |
| 11/12/2024 | 4 |
| 11/13/2024 | 2 |
| 11/20/2024 | 1 |
| 11/21/2024 | 1 |
| 11/22/2024 | 1 |
| 12/5/2024 | 1 |
| 12/10/2024 | 1 |
| 12/11/2024 | 7 |
| 12/18/2024 | 2 |
| 12/19/2024 | 5 |
| 12/20/2024 | 1 |
| 1/17/2025 | 8 |
| 2/14/2025 | 4 |
| 2/26/2025 | 3 |
| 2/28/2025 | 1 |
| 3/12/2025 | 1 |
| 3/28/2025 | 3 |
| 4/18/2025 | 1 |
| 4/30/2025 | 1 |
| 5/9/2025 | 2 |
| 5/16/2025 | 3 |
| 5/23/2025 | 2 |
| 6/18/2025 | 1 |
| 6/19/2025 | 2 |
| 6/28/2025 | 1 |
| 7/2/2025 | 1 |
| 7/18/2025 | 3 |
| 8/6/2025 | 2 |
| 9/10/2025 | 1 |
| 9/11/2025 | 1 |
| 9/12/2025 | 1 |
| 9/13/2025 | 2 |
| 9/17/2025 | 3 |
| 9/18/2025 | 1 |
| 9/23/2025 | 1 |
| 9/24/2025 | 1 |