API & Integrations - Event Push UI Update - Mar 2026

Service Update

Availability	March 2nd, 2026
Product(s)	Email Security Cloud Gateway (CG)
Who's affected	Email Security Cloud Gateway, Administrators

Overview

Mimecast is pleased to announce configuration experience changes to our Event Push integration configuration. 
Previously, authentication and connection mechanisms were split between the Activate and Headers section. 

What's changing

• The Event collector Endpoint URL, OAuth, and S3 configuration options have been moved to the Authentication & Headers section. This aligns different ways to authenticate connections in a unified section and makes it easier to locate the Event Collector Endpoint field.
• These are user interface updates only, and do not impact the functionality of any previously configured instances.

Recommended actions

For information about Event Push, see API & Integrations - Event Push Integration.

See Also...

• API & Integrations - Event Push Integration
• API & Integrations - The Integrations Hub for Cloud Gateway
• Mimecast Developer Portal