Sh4meful
IP Address: 170.10.129.179 âš Network Confounder
âš Network Confounder Detected: Mimecast
Mimecast is a cloud-based (email) cybersecurity platform designed to protect organizations from advanced email threats, such as phishing, ransomware, and malware. It can and does break SPF and DKIM.
Mimecast is a cloud-based (email) cybersecurity platform designed to protect organizations from advanced email threats, such as phishing, ransomware, and malware. It can and does break SPF and DKIM.
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:
- MNA-95
- CIDR:
170.10.128.0/19- Reverse DNS:
-
us-smtp-delivery-179.mimecast.com
Last updated: 2/5/2026