API & Integrations - Splunk - Update to v.5.4.0 - Oct 2025

Service Update

Availability	October 16th, 2025
Product(s)	Email Security Cloud Gateway (CG) Email Security Cloud Integrated (CI)
Who's affected	Email Security Cloud Gateway (CG), Administrators Email Security Cloud Integrated (CI), Administrators

Overview

Mimecast is pleased to announce that Mimecast for Splunk has been updated from version 5.3.0 to version 5.4.0.

What's changing

• Support for the latest Splunk and Splunk Cloud releases.
• Bug fix for the Email Activity Summary dashboard.
• Back-end updates, to ensure continued compliance with Splunk integration requirements.

Recommended actions

For more information, see Splunk marketplace tile on our integrations page.

See Also...

• API & Integrations - Mimecast For Splunk Administration
• API & Integrations - Managing API Applications