Problems detected.

Microsoft reports that elevated infrastructure load across multiple regions is likely contributing to connectivity errors. Microsoft is tracking these issues under EX1550543 and MO1550821.

The disruption is affecting Microsoft Office 365 Remote Mailbox polling in MSPintegrations. Affected mailboxes may show as offline or experience delays in email processing. Recovery depends on Microsoft restoring the affected services, and we are monitoring for recovery.

We will update this status page once the incident is resolved. Until then, further information will be posted in our community discussion.

Please join us there for the latest information and to ask questions. Incoming email to our support team may also be affected, so the community discussion or Website Live Chat is the best way to reach us during this incident.

Microsoft has acknowledged reports of users having trouble accessing Exchange Online mailboxes through multiple connection methods in the Americas. Microsoft is investigating under incident EX1550543.

Our diagnostics indicate that the errors affecting Microsoft Office 365 Remote Mailbox polling are originating within Microsoft’s services. Affected mailboxes may continue to show as offline or experience delays in email processing.

We are monitoring Microsoft’s updates and our polling systems for recovery. We will provide another update as more information becomes available.

As of 2026-11-12 at 17:45 UTC (9:45 AM Pacific, 12:45 PM Eastern), we have identified a number of Microsoft Office 365 Remote Mailboxes are showing as offline. We are investigating and will provide updates here in the next 30 minutes.