Outage in Mimecast
Aware 1.0 Performance Issue
Resolved Minor
April 24, 2026 - Started 1 day ago
- Lasted about 8 hours
Incident Report
Summary AI Generated
Mimecast's Aware 1.0 platform experienced performance issues for 8.1 hours, causing delays and retries for some customers due to an underlying Azure platform disruption in the East US region. Mimecast's engineering teams worked with Microsoft to implement mitigation actions, which improved performance though some intermittent delays continued while the environment stabilized. The incident was resolved through Microsoft's platform fixes and ongoing monitoring by Mimecast's engineering team.
We have identified an issue affecting some customers on the Aware 1.0 platform, resulting in delays and retries. This has been attributed to an underlying Azure platform disruption. Our Engineering teams are actively engaged with Microsoft to remediate this as quickly as possible.
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Latest Updates ( sorted recent to last )
1 day ago - at 04/24/2026 03:38PM
We have identified an issue affecting some customers on the Aware 1.0 platform, resulting in delays and retries. This has been attributed to an underlying Azure platform disruption. Our Engineering teams are actively engaged with Microsoft to remediate this as quickly as possible.
1 day ago - at 04/24/2026 08:51PM
Following our earlier update, mitigation actions have been implemented by Microsoft in relation to the underlying platform disruption impacting the East US region.
We are seeing improved performance for customers on the Aware 1.0 platform; however, there may still be intermittent delays or retries while the environment fully stabilises.
Our Engineering team continues to closely monitor performance and recovery. We will provide further updates here as they become available.
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