Resolved after 1 day 2 hours, affecting United States B Grid and Offshore Grid (Offshore Grid — Email Processing), on July 23, 2026.
We have implemented mitigation steps to address intermittent delivery delays for some customers hosted on our USB grid. Our processing queues are in a healthier state, and we are observing normal mail delivery operations. Our Engineering teams will continue monitoring to ensure stability in our environment.
Affected components
Update timeline
- investigating Jul 23, 2026, 04:11 PM UTC
We are aware that some customers hosted on our USB grid may be experiencing intermittent delivery delays. We are currently investigating and will post updates here as they become available.
- identified Jul 23, 2026, 04:47 PM UTC
We have identified the cause of the intermittent delivery delays affecting some customers hosted on our USB grid. Our teams are actively working on a resolution, and further updates will be posted here as they become available.
- identified Jul 23, 2026, 09:39 PM UTC
We have implemented mitigation steps to address intermittent delivery delays for some customers hosted on our USB grid. Our teams are seeing improvements and are continuing to work toward full resolution. We will provide further updates as they become available.
- monitoring Jul 24, 2026, 01:36 AM UTC
We have implemented mitigation steps to address intermittent delivery delays for some customers hosted on our USB grid. Our processing queues are in a healthier state, and we are observing normal mail delivery operations. Our Engineering teams will continue monitoring to ensure stability in our environment.
Your product runs on more than Mimecast
Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.
Amazon Web Services