Outage in Microsoft 365
Users may experience errors or failures when accessing their mailbox from the Messaging API (MAPI) connection method
Resolved Minor
July 15, 2026 - Started 2 days ago
- Lasted about 2 hours
Incident Report
Summary AI Generated
Microsoft 365 Exchange Online experienced a connectivity issue affecting users in Europe, the Middle East, and Africa who were unable to access their mailboxes via the MAPI connection method. The incident lasted approximately 1.7 hours, with Microsoft identifying a problem in a subset of service infrastructure facilitating MAPI access. Investigation was ongoing to isolate the root cause at the time of the last update.
Title: Potential issues accessing mailboxes via one or more connection methods
User impact: Users may experience errors or failures when accessing their mailbox via one or more Exchange Online connection methods.
Current status: We're investigating a potential issue and checking for impact to your organization. We'll provide an update within 60 minutes.
Components affected
Exchange OnlineTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
2 days ago - at 07/15/2026 07:42PM
Title: Users may experience errors or failures when accessing their mailbox from the Messaging API (MAPI) connection method
User impact: Users may experience errors or failures when accessing their mailbox from the MAPI connection method.
Current status: We've identified a potential connectivity issue that may be producing errors or failures for users accessing their Exchange Online from the MAPI connection method. We're further analyzing a subset of service infrastructure that facilitates access to mailboxes from MAPI as we isolate the source for this event.
Scope of impact: This issue is preventing users in Europe, the Middle East, and Africa from accessing their mailboxes from MAPI connection methods.
Next update by: Wednesday, July 15, 2026, at 9:00 PM UTC
2 days ago - at 07/15/2026 06:37PM
Title: Potential issues accessing mailboxes via one or more connection methods
User impact: Users may experience errors or failures when accessing their mailbox via one or more Exchange Online connection methods.
Current status: We're investigating a potential issue and checking for impact to your organization. We'll provide an update within 60 minutes.
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