Microsoft outage: delays delivering to Outlook, Hotmail and Office 365
Incident
Report for Bird
Subscribe to Updates
Monitoring
Delivery to Microsoft (Outlook.com, Hotmail, Microsoft 365) is recovering
Microsoft is still recovering from its service incident (Microsoft reference EX1550543). The problem was on Microsoft's side. Our platform has run normally throughout, and delivery to other mailbox providers was not affected.
Since about 11:30 UTC (5:30 AM US Central), delivery to Microsoft recipients has improved a lot. Delivery volume is back in its normal range. We're also working through the backlog of mail that was queued during the outage, and those retries make up a large share of what Microsoft is accepting right now. About 3 in 10 delivery attempts to Microsoft are still being deferred, compared with more than 9 in 10 at the worst point. That's still above normal, so some messages to Microsoft recipients may take longer than usual to arrive while Microsoft finishes recovering.
Microsoft reports that recovery is moving forward across Europe, Asia Pacific and North America, and that some users may still see intermittent issues.
What this means for you: You don't need to do anything. We'll keep retrying any deferred mail automatically. If you set short expiration windows on your messages, some messages to Microsoft recipients may have expired before Microsoft accepted them.
We'll keep watching delivery to Microsoft closely and will post again once it's fully back to normal.
Microsoft is still recovering from its service incident (Microsoft reference EX1550543). The problem was on Microsoft's side. Our platform has run normally throughout, and delivery to other mailbox providers was not affected.
Since about 11:30 UTC (5:30 AM US Central), delivery to Microsoft recipients has improved a lot. Delivery volume is back in its normal range. We're also working through the backlog of mail that was queued during the outage, and those retries make up a large share of what Microsoft is accepting right now. About 3 in 10 delivery attempts to Microsoft are still being deferred, compared with more than 9 in 10 at the worst point. That's still above normal, so some messages to Microsoft recipients may take longer than usual to arrive while Microsoft finishes recovering.
Microsoft reports that recovery is moving forward across Europe, Asia Pacific and North America, and that some users may still see intermittent issues.
What this means for you: You don't need to do anything. We'll keep retrying any deferred mail automatically. If you set short expiration windows on your messages, some messages to Microsoft recipients may have expired before Microsoft accepted them.
We'll keep watching delivery to Microsoft closely and will post again once it's fully back to normal.
This incident affects: Bird Platform.