Degraded Email Delivery to Microsoft Outlook Inboxes

Incident Report for WorkOS

Resolved

The issue impacting outbound email delivery to Outlook and Microsoft 365 inboxes has been resolved. Delivery is now operating normally across all providers.
Posted Jan 23, 2026 - 10:16 EST

Monitoring

We are experiencing degraded delivery of outbound emails from WorkOS to Outlook and Microsoft 365 inboxes. Some messages may be delayed or not delivered. Delivery to non-Outlook providers is unaffected. We are monitoring the situation and will share updates as they become available.
Posted Jan 22, 2026 - 18:44 EST
This incident affected: Core Services (AuthKit).
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