Exchange Online Backup Failures (Forbidden Errors)
Identified - 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 - 12:18 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
West Europe Operational
France Central Operational
South Africa North Operational
Switzerland North Operational
Italy North Operational
Endpoint Operational
South Africa North Operational
Switzerland North Operational
France Central Operational
West Europe Operational
Italy North Operational
SalesForce Operational
Switzerland North Operational
South Africa North Operational
France Central Operational
West Europe Operational
Italy North Operational
VM & Kubernetes Operational
North Europe Operational
South Africa North Operational
Switzerland North Operational
West Europe Operational
France Central Operational
Italy North Operational
Database Operational
Switzerland North Operational
France Central Operational
West Europe Operational
South Africa North Operational
Italy North Operational
Dynamics 365 Operational
West Europe Operational
Switzerland North Operational
France Central Operational
South Africa North Operational
Italy North Operational
Office 365 Operational
West Europe Operational
France Central Operational
Switzerland North Operational
South Africa North Operational
Italy North Operational
Google Workspace Operational
Europe West 4 Operational
File & Object Operational
South Africa North Operational
North Europe Operational
Switzerland North Operational
West Europe Operational
France Central Operational
Italy North Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Sep 11, 2026

No incidents reported today.

Sep 10, 2026

No incidents reported.

Sep 9, 2026

Weekly Scheduled maintenance
Completed - The scheduled maintenance has been completed.
Sep 9, 04:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 9, 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 6, 08:02 UTC

Sep 8, 2026

No incidents reported.

Sep 7, 2026

No incidents reported.

Sep 6, 2026

No incidents reported.

Sep 5, 2026

No incidents reported.

Sep 4, 2026

No incidents reported.

Sep 3, 2026

No incidents reported.

Sep 2, 2026

Weekly Scheduled maintenance
Completed - The scheduled maintenance has been completed.
Sep 2, 04:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 2, 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.
Aug 30, 08:02 UTC

Sep 1, 2026

No incidents reported.

Aug 31, 2026

No incidents reported.

Aug 30, 2026

No incidents reported.

Aug 29, 2026

No incidents reported.

Aug 28, 2026

No incidents reported.

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