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 - 12:24 UTC
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 - 12:24 UTC
Office 365
Operational
France Central
Operational
REST API
Operational
France Central
Operational
Usage & Metering
Operational
France Central
Operational
Reports
Operational
France Central
Operational
Web Portal
Operational
France Central
Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Scheduled Maintenance
Weekly Scheduled maintenance Aug 5, 2026 01:00-02:30 UTC
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 Aug 02, 2026 - 08:02 UTC
Posted on Aug 02, 2026 - 08:02 UTC