Expel Extends MDR Capabilities to Strengthen Email Threat Defense

Expel is adding a new layer to its Managed Detection and Response (MDR) offering with expanded capabilities focused on email security. The enhancement enables earlier detection of email threats—long considered a primary attack vector—by integrating Proofpoint, Abnormal AI, and Sublime Security capabilities. The move allows security teams to take more proactive steps earlier in the threat lifecycle.

Email remains a dominant source of security incidents, particularly those tied to identity-based attacks. By enriching its MDR platform with email threat intelligence, Expel enables organizations to detect and disrupt threats the moment they hit the inbox. Custom-built detections fine-tuned for email security tools help reduce alert noise while maintaining visibility into real threats—giving teams room to act before an incident escalates.

The expanded service correlates email telemetry with data from endpoints, users, and networks. This unified view improves response accuracy and allows Expel to take decisive mitigation steps on behalf of customers. The result is a faster, more coordinated defense strategy that aligns with the growing need for threat visibility across multiple vectors.

Expel’s tech-agnostic MDR platform now spans over 130 integrations, helping organizations secure cloud, SaaS, Kubernetes, identity systems, and now email—without requiring rip-and-replace investments. This latest enhancement reflects Expel’s continued focus on strengthening security operations where threats are most likely to emerge.