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Exchange Online mailbox unavailable

February 19, 2026 at 3:27 PM UTC

Microsoft

Resolved after 1h 55m February 19, 2026 at 5:22 PM UTC

Issue Resolved | 11:22am Central - Microsoft reports that the issue is now resolved. The Atelic Technology Services Department appreciates your patience and understanding while working through this service outage. If the issue is still occurring, please contact the Technology Services Department. This will be the last update unless the issue recurs.

Vendor Investigating | 11:00am Central - Microsoft continues to investigate the issue. Microsoft reports that some users may be intermittently unable to access their Exchange Online mailboxes using any connection method. The Atelic Technology Services Department has not been able to validate this report but are monitoring further updates from Microsoft. End user disruption may occur for this issue.

Vendor Investigating | 09:56am Central - Microsoft continues to investigate the issue and has expanded the scope to include Microsoft Outlook. Microsoft reports that some users may be intermittently unable to access their Exchange Online mailboxes using any connection method. The Atelic Technology Services Department has not been able to validate this report but are monitoring further updates from Microsoft. End user disruption may occur for this issue.

Report Received | 09:27am Central - We are investigating a potential issue that might affect the uptime of one of our services. Microsoft reports that some users may be intermittently unable to access their Exchange Online mailboxes using any connection method. The Atelic Technology Services Department has not been able to validate this report but are monitoring further updates from Microsoft. End user disruption may occur for this issue.

Last updated: February 20, 2026 at 11:53 PM UTC