BigCommerce incident
Delayed email delivery to Microsoft-hosted inboxes
Resolved after 3 hours 23 minutes, affecting Email, on September 4, 2026.
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.
Affected components
Update timeline
- investigating Sep 04, 2026, 09:19 AM 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.
- monitoring Sep 04, 2026, 11:59 AM 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.
- resolved Sep 04, 2026, 12:43 PM UTC
This incident has been resolved.
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