Outage in Mimecast

Mimecast web portal access issue

Resolved Minor
October 08, 2025 - Started 8 days ago - Lasted about 1 hour

Incident Report


We are aware that customers may be experiencing issues accessing the Mimecast web portals. We are currently investigating the issue and updates will be posted here as they become available.
Components affected
Mimecast United States Grid
The Status Page Aggregator Built for IT Teams

One place to monitor all your cloud vendors. Get instant alerts when an outage is detected.

Try IsDown risk-free 14-day free trial · No credit card required
Latest Updates ( sorted recent to last )
8 days ago - at 10/08/2025 12:36PM


We are aware that customers may be experiencing issues accessing the Mimecast web portals. We are currently investigating the issue and updates will be posted here as they become available.

8 days ago - at 10/08/2025 01:28PM


We believe we have identified the issue affecting access to the Mimecast portal on the US grid. Previously it was reported that the issue was global but further investigations have determined this is only impacting the US-A grid. Our mitigation efforts are underway, and we will provide further updates here as they become available. Please note that mail flow remains unaffected, and all other services are operating normally.

The Status Page Aggregator Built for IT Teams

With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.

Start free trial

No credit card required · Cancel anytime · 4522 services available

Integrations with Slack Microsoft Teams Google Chat Datadog PagerDuty Zapier Discord Webhook