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BigCommerce: Delayed email delivery to Microsoft-hosted inboxes

Affected components: Email

Timeline of updates

1. investigating2026-09-04 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.

2. monitoring2026-09-04 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.

3. resolved2026-09-04 12:43 UTC

   This incident has been resolved.

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). BigCommerce profile · Recent BigCommerce incidents · Markdown · JSON