Bird (MessageBird) outage, 13 November 2026
Microsoft outage: delays delivering to Outlook, Hotmail and Office 365
- Started
- Resolved
- 12 Nov 2026, 20:00 UTC - reported afterwards
- Impact
- Not stated
Is this still happening?
No. Bird (MessageBird) marked this incident resolved.
Right now: Bird (MessageBird) reports all systems operational. (as of 13 Nov, 20:53 UTC) Live Bird (MessageBird) status
At a glance
- Bird (MessageBird) did not rate the impact of this incident.
- Bird (MessageBird) had 1 other incident in the 30 days before it.
- 1 earlier incident looks like the same kind of problem (same affected part or wording); the most recent was on 13 Nov 2026.
Our summary from the Bird (MessageBird) incidents we have recorded since 24 Mar 2026 - how we count.
Last update from Bird (MessageBird)
Microsoft has confirmed an incident affecting Exchange Online and Microsoft 365 connectivity in all regions. It’s tracked as EX1550543, and you can follow Microsoft’s updates at https://status.cloud.microsoft/m365/referrer=serviceStatusRedirect. Since about 17:30 UTC on November 12, Microsoft’s mail servers have been answering a large share of delivery attempts with temporary errors. This affects Outlook.com, Hotmail, Live, MSN and Office 365 recipients. The errors include “451 4.7.0 Temporary server error”, “421 4.3.2 The maximum number of concurrent server connections has exceeded a limit” and “451 4.7.700 PFA agent busy”. The problem is on Microsoft’s side and affects senders across the...
Read the full incident on the official Bird (MessageBird) status page
Similar Bird (MessageBird) incidents
Earlier incidents with the same affected part or wording - useful to see how long this kind of problem usually takes.
-
, resolved after 3 h 31 min
Microsoft outage: delays delivering to Outlook, Hotmail and Office 365
Other recent Bird (MessageBird) incidents
Something wrong on this page?
Thanks - your report is on its way to us. We read every one.