Provider
ResendIncident detail
Deliverability Issues to Outlook Emails
Resolved incidentMinor
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Timeline
Incident updates
Every update Resend posted, oldest to newest, exactly as it appeared on their official status page.
Investigating
We are currently investigating an issue affecting deliverability to Microsoft inbox providers. At this time, some emails sent to Outlook.com, Hotmail.com, and other Microsoft-owned domains may experience delivery delays.
Identified
We've identified that Microsoft addresses (outlook.com, hotmail.com, and other Microsoft-owned domains) are experiencing delivery delays at an elevated rate.
We've informed Microsoft and are monitoring.
Identified
We’ve identified that this issue is impacting domains in the eu-west-1 region. We’re actively escalating with Microsoft to resolve this as quickly as possible. Please reach out to support@resend.com for any questions and concerns.
Monitoring
We’re seeing delivery to Outlook.com, Hotmail.com, and other Microsoft-owned domains return to normal. Emails are now being delivered in a timely manner. We’ll continue to monitor closely.
Resolved
The issue has been resolved, and sending to Microsoft-owned domains has been restored.
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