IP Address: 67.231.158.203 âš Network Confounder
âš Network Confounder Detected: Proofpoint Email Security
Proofpoint network identifier
Proofpoint network identifier
About this Data
â–¶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
- Coordinates:
- 37.751, -97.822
WHOIS Information
- Network Name:
- PROOFPOINT-NET-NORTH-AMERICA
- CIDR:
67.231.144.0/20- Reverse DNS:
-
mx0c-001c8f01.pphosted.com
Last updated: 2/5/2026