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 - 12:14 UTC
Web Portal Operational
UK South Operational
REST API Operational
East US2 Operational
Reports Operational
UK South Operational
Usage & Metering Operational
UK South Operational
Active Directory Operational
UK South Operational
Dynamics 365 Operational
UK South Operational
Database Operational
UK South Operational
Endpoint Operational
UK South Operational
File & Object Operational
UK South Operational
UK West Operational
Office 365 Operational
UK South Operational
Google Workspace Operational
Europe West 2 Operational
SalesForce Operational
UK South Operational
VM & Kubernetes Operational
UK South Operational
UK West Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Scheduled Maintenance

Weekly Scheduled maintenance Nov 4, 2026 03:00-04:30 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 Nov 01, 2026 - 08:01 UTC

Nov 3, 2026

No incidents reported today.

Nov 2, 2026

No incidents reported.

Nov 1, 2026

No incidents reported.

Oct 31, 2026

No incidents reported.

Oct 30, 2026

No incidents reported.

Oct 29, 2026

No incidents reported.

Oct 28, 2026

Weekly Scheduled maintenance
Completed - The scheduled maintenance has been completed.
Oct 28, 04:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 28, 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 25, 08:01 UTC

Oct 27, 2026

No incidents reported.

Oct 26, 2026

No incidents reported.

Oct 25, 2026

No incidents reported.

Oct 24, 2026

No incidents reported.

Oct 23, 2026

Threatwise Services
Resolved - This incident has been resolved.
Oct 23, 19:40 UTC
Investigating - ThreatWise services are temporarily unavailable. Our team is actively working to restore service as quickly as possible. We apologize for the inconvenience and appreciate your patience.
Oct 21, 18:15 UTC

Oct 22, 2026

No incidents reported.

Oct 21, 2026

Weekly Scheduled maintenance
Completed - The scheduled maintenance has been completed.
Oct 21, 04:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 21, 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 18, 08:02 UTC

Oct 20, 2026

No incidents reported.

Incident History Powered by Atlassian Statuspage