Microsoft 365 Incident

Microsoft 365 is currently experiencing an incident, which is degrading its ability to accept email. While this is not a Resend incident, it is possible to see an elevated amount of “Delivery Delay” events if Microsoft is unable to accept the email.

With our Delivery Delayed events, we will retry delivery. Once Microsoft resolves its incident, sending to these addresses will return to normal.

We’re continuing to monitor delivery to Microsoft-hosted inboxes as they work to resolve the incident.

Emails in a “Delivery Delayed” status will continue to be retried and delivered once Microsoft resolves the incident.

Microsoft continues to work on restoring its services.

We are monitoring delivery attempts there. Emails in “Delivery Delayed” status will continue to be retried.

Microsoft is still working to resolve the incident affecting email delivery to Microsoft 365. Emails to Microsoft-hosted addresses may continue to show a “Delivery Delayed” status. There’s no need to retry them: we’re retrying automatically, and they’ll be delivered once Microsoft is accepting mail again.

We’ll post another update as Microsoft’s status changes.

Microsoft’s incident is ongoing, and they haven’t yet given an estimate for full recovery. We’re continuing to retry emails to Microsoft-hosted addresses that show a “Delivery Delayed” status. There’s no need to retry these.

If Microsoft’s outage continues past our retry window, some of these emails may bounce. You’ll receive a bounce event for each one, and you can retry those emails once Microsoft recovers.

Microsoft’s incident is still ongoing, and their team continues to work toward recovery. We’re beginning to see a small number of new emails being accepted by Microsoft. We’ll continue to automatically retry affected emails.

If the incident extends beyond our retry window, some emails may bounce. You’ll receive a bounce event for each affected email, and you can safely retry sending those messages once Microsoft has fully recovered.

We’re seeing an increasing number of emails being accepted by Microsoft. We’ll continue to monitor the situation closely and provide further updates as progress continues.

Microsoft’s ability to accept email has improved, and we’re now seeing successful deliveries to Microsoft-hosted addresses. Emails in a “Delivery Delayed” status are being delivered as we retry them.

We’ll keep monitoring delivery to Microsoft until it’s fully back to normal.

Email delivery to Microsoft-hosted addresses has returned to normal, and we’ve delivered emails that were in a “Delivery Delayed” status after retrying them. Microsoft is still recovering, so a small number of messages may take a little longer to arrive.

As always, we’ll continue monitoring delivery to Microsoft.