# BigCommerce: Delayed email delivery to Microsoft-hosted inboxes

- Provider: [BigCommerce](https://outages.cc/bigcommerce.md)
- Type: Incident
- State: Resolved
- Worst impact: Degraded performance
- Started: 2026-09-04 09:19 UTC
- Resolved: 2026-09-04 12:43 UTC (lasted 3 h 24 min)
- Components: Email
- Official update: https://stspg.io/gd9gsw8357wc

## Updates from BigCommerce

### resolved, 2026-09-04 12:43 UTC

This incident has been resolved.

### monitoring, 2026-09-04 11:59 UTC

Commerce engineers have applied mitigations to improve email delivery to Microsoft-hosted inboxes (Outlook.com, Microsoft 365). Delivery rates are improving and we are continuing to monitor them.

### investigating, 2026-09-04 09:19 UTC

We are investigating delayed email delivery for some transactional emails, such as order confirmations and notifications. The delay affects recipients with Microsoft-hosted inboxes (Outlook.com, Microsoft 365). Other email providers are not affected. We will post an update as we have more information.