Outage in Mimecast

Intermittent Web Security connectivity issues

Minor
December 08, 2025 - Started about 1 hour ago

Incident Report

We are aware that some customers may be experiencing internet access issues while using Web Security. We are currently investigating the issue and updates will be posted here as they become available. No mail flow is impacted.
Components affected
Mimecast United States Grid Mimecast United States B Grid Mimecast United Kingdom Grid Mimecast South African Grid Mimecast Australian Grid Mimecast German Grid Mimecast Offshore Grid Mimecast Canadian Grid

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Latest Updates ( sorted recent to last )
about 1 hour ago - at 12/08/2025 11:40AM

We are aware that some customers may be experiencing internet access issues while using Web Security. We are currently investigating the issue and updates will be posted here as they become available. No mail flow is impacted.

about 1 hour ago - at 12/08/2025 12:08PM


We believe we have identified the issue affecting Web Security and are working to resolve it. We will provide further updates as they become available.

26 minutes ago - at 12/08/2025 12:33PM

We believe we have resolved the issue affecting Web Security. The Engineering team is actively monitoring the situation and will provide updates as needed.

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