Outage in Mimecast
Email Delivery Delays
Resolved Minor
March 26, 2026 - Started about 1 month ago
- Lasted about 1 hour
Incident Report
Summary AI Generated
A small subset of Mimecast customers on the US-B grid experienced email delivery delays, with messages being deferred and held in processing queues. The issue was identified by Mimecast's engineering team and resolved after 56 minutes of service disruption.
We are aware that a small subset of customers hosted on our US-B grid may be experiencing email delivery delays, with messages being deferred and held in the processing queue. We are currently investigating the issue and updates will be posted here as they become available.
Components affected
Mimecast United States B GridTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
about 1 month ago - at 03/26/2026 03:49PM
We are aware that a small subset of customers hosted on our US-B grid may be experiencing email delivery delays, with messages being deferred and held in the processing queue. We are currently investigating the issue and updates will be posted here as they become available.
about 1 month ago - at 03/26/2026 04:24PM
We believe we have identified the issue affecting a small subset of US-B hosted customers who are experiencing email delivery delays and are working to resolve it. We will provide further updates as they become available.
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