Microsoft service disruption affecting Microsoft Graph email egress

Resolved – Microsoft has confirmed full recovery from the service degradation affecting Graph-based mail flow (EX1464935). All Sedna services related to Microsoft Graph email egress are now operating normally. We've seen no further reports of impact since our last update. Thank you for your patience while we monitored this alongside Microsoft.

Microsoft has reported that core mail flow and search functionality are recovering, with service availability above 99%.

The majority of users should no longer be experiencing impact. We are continuing to monitor to confirm persistent stability before closing this incident. Microsoft's next update is expected by September 2, 2026, at 4:30 PM UTC. We will update this page accordingly.

We are continuing to investigate this issue.

We have received reports that services have returned to normal. Microsoft’s service degradation, EX1464935, remains listed as active as of September 2, 2026, at 01:32:37 UTC. We will continue to monitor the situation closely and provide a further update once Microsoft confirms full resolution or if conditions change.

Some users are reporting improved mail flow this morning. Microsoft's service degradation (EX1464935) remains listed as active as of 06:39 UTC, and we continue to monitor closely. We will post a further update once Microsoft confirms full resolution or if conditions change.

The Microsoft service degradation is still ongoing. Microsoft has not yet provided an estimated time for resolution. We continue to monitor the situation and will provide further updates as they become available.

We are continuing to investigate this issue.

Microsoft has reported service degradation that may affect outbound emails sent from Sedna via Microsoft Graph. Customers may experience delays or failures when sending emails. We are monitoring the situation and will provide updates as they become available.