Service Degradation: PST Export Delays

Update timeline

1. investigating Feb 06, 2026, 04:20 PM UTC

   Status: Investigating We are currently investigating an issue where some customers may experience failures or delays when exporting data to PST. At this time, restore functionality remains fully operational and is not impacted. Our engineering teams are actively debugging the issue, which appears to be related to a recent Microsoft update affecting PST background processing. We are working to mitigate the impact and will provide further updates as more information becomes available. Affected components M365 - Asia Pacific (Partial outage) M365 - Europe, Middle East & Africa (Partial outage) M365 - Americas (Partial outage)

2. monitoring Feb 06, 2026, 09:49 PM UTC

   Status: Monitoring Targeted changes were applied to mitigate the current PST export failures. The system and associated changes will continue to be monitored and we will provide additional updates as the situation evolves. Affected components M365 - Asia Pacific (Operational) M365 - Europe, Middle East & Africa (Operational) M365 - Americas (Operational)

3. monitoring Feb 10, 2026, 02:14 AM UTC

   Status: Monitoring Our engineers have applied a fix as of 12:00 UTC to address the recent service interruptions. We have confirmed that systems are currently performing as expected and will continue to monitor service health overnight to ensure ongoing stability. The next update will be provided around 16:00 UTC after further observation. Affected components M365 - Asia Pacific (Operational) M365 - Europe, Middle East & Africa (Operational) M365 - Americas (Operational)

4. resolved Feb 10, 2026, 03:43 PM UTC

   Status: Resolved Our engineers have monitored system health overnight and confirmed that platform stability has returned to normal. The previous failures and delays encountered when exporting data to PST have been fully resolved. Affected components M365 - Europe, Middle East & Africa (Operational) M365 - Americas (Operational) M365 - Asia Pacific (Operational)