Outage in Mimecast
Degraded Service on US Grid
Resolved Minor
September 19, 2025 - Started 7 months ago
- Lasted 1 day
Incident Report
We are aware that some customers housed on our US grid may be experiencing intermittent timeouts and 403 errors when clicking on rewritten URLs in emails. Our engineering teams have identified potential causes and are working to resolve the issue as a priority. Further updates will be provided as soon as more information becomes available.
Trusted by 1,000+ teams
Never miss outages in third-party dependencies
Stop finding out about outages from your users. Monitor 6,320+ cloud services and get alerted the second something breaks.
Latest Updates ( sorted recent to last )
7 months ago - at 09/19/2025 09:50PM
We are aware that some customers housed on our US grid may be experiencing intermittent timeouts and 403 errors when clicking on rewritten URLs in emails. Our engineering teams have identified potential causes and are working to resolve the issue as a priority. Further updates will be provided as soon as more information becomes available.
Latest Mimecast outages
Aware 1.0 Performance Issue - 1 day ago
Administration Console Loading Issues - 3 days ago
DE Grid, degraded performance - 13 days ago
Login issues for customers using 2FA authentication - 16 days ago
US-B Service Degradation - 17 days ago
Never miss outages in third-party dependencies
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 trialNo credit card required · Cancel anytime · 6320 services available
Integrations with
