Monitoring - Commvault Engineering worked closely with AWS Support to resolve this issue and restore normal backup operations. AWS identified the root cause and confirmed that the requirement change responsible for the errors has been rolled back. Backups are now completing successfully, and we are closely monitoring backup jobs to ensure continued stability and successful execution.
Jun 12, 2026 - 03:47 UTC
Identified - We are currently addressing an issue affecting some AWS VM backup jobs. Impacted jobs may fail during processing due to a signature validation error encountered while accessing data through the AWS API. While we are working with AWS on the root cause we are actively deploying a fix on our end to work around the issue to the affected systems. We will provide another update once the deployment is complete and service has been fully restored.
Identified - We are tracking reports of "Forbidden" errors during Office 365 backups caused by a recent Microsoft Exchange Online behavior change. This affects specific tenants and mailboxes using EWS.
Exchange Online jobs may show User Mailboxes reporting a Mailbox Status of: Throttling from Exchange, Failed to process mailbox due to [The request failed. Forbidden]
We will be doing quick maintenance to ensure the best experience for our customers.We will be back shortly and operations that were in progress will immediately resume. Posted on
Jun 14, 2026 - 08:01 UTC
Completed -
The scheduled maintenance has been completed.
Jun 3, 04:30 UTC
In progress -
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 3, 03:00 UTC
Scheduled -
We will be doing quick maintenance to ensure the best experience for our customers.We will be back shortly and operations that were in progress will immediately resume.
May 31, 08:02 UTC