Exchange Online Backup Failures (Forbidden Errors)
Investigating - Description: 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]

Resolution:
Additional information and steps to resolve this can be found here, https://support.commvault.com/Article/Details/KA-191556
Jun 22, 2026 - 12:14 UTC
Web Portal Operational
West Europe Operational
REST API Operational
East US2 Operational
Reports Operational
West Europe Operational
Usage & Metering Operational
West Europe Operational
Active Directory Operational
France Central Operational
West Europe Operational
Switzerland North Operational
South Africa North Operational
Dynamics 365 Operational
West Europe Operational
France Central Operational
Switzerland North Operational
South Africa North Operational
Database Operational
South Africa North Operational
Switzerland North Operational
West Europe Operational
France Central Operational
Endpoint Operational
West Europe Operational
South Africa North Operational
Switzerland North Operational
France Central Operational
File & Object Operational
France Central Operational
North Europe Operational
South Africa North Operational
Switzerland North Operational
West Europe Operational
Office 365 Operational
France Central Operational
Switzerland North Operational
West Europe Operational
South Africa North Operational
SalesForce Operational
West Europe Operational
South Africa North Operational
Switzerland North Operational
France Central Operational
VM & Kubernetes Operational
France Central Operational
West Europe Operational
South Africa North Operational
Switzerland North Operational
North Europe Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Oct 9, 2026

No incidents reported today.

Oct 8, 2026

No incidents reported.

Oct 7, 2026

Weekly Scheduled maintenance
Completed - The scheduled maintenance has been completed.
Oct 7, 04:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 7, 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.
Oct 4, 08:02 UTC

Oct 6, 2026

No incidents reported.

Oct 5, 2026

No incidents reported.

Oct 4, 2026

No incidents reported.

Oct 3, 2026

No incidents reported.

Oct 2, 2026

No incidents reported.

Oct 1, 2026

Partial Web Service Degradation
Resolved - This incident has been resolved.
Oct 1, 05:03 UTC
Monitoring - The issue impacting Command Center accessibility has been resolved. Command Center is now accessible, and we are actively monitoring the environment to ensure continued stability.
Sep 30, 10:01 UTC
Investigating - We are currently experiencing degraded performance on our web portal and are actively investigating the root cause. Backup and restore operations continue to function normally and remain unaffected. Our engineering teams are working to resolve the issue as quickly as possible, and we will provide further updates as more information becomes available.
Sep 30, 08:52 UTC

Sep 30, 2026

Weekly Scheduled maintenance
Completed - The scheduled maintenance has been completed.
Sep 30, 04:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 30, 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.
Sep 27, 08:01 UTC

Sep 29, 2026

No incidents reported.

Sep 28, 2026

No incidents reported.

Sep 27, 2026

No incidents reported.

Sep 26, 2026

No incidents reported.

Sep 25, 2026

No incidents reported.

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