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Title: Users may experience errors or failures when accessing their Outlook mailbox through any connection method
User impact: Users may experience errors or failures when accessing their Outlook mailbox through any connection method.
Current status: We're continuing to monitor our traffic redistribution out of the affected infrastructure, however this is not resolving the impact as we anticipated. We’re reviewing additional logging to develop alternate mitigation options to address the continual service errors.
Next update by: Wednesday, October 1, 2025, at 6:00 AM UTC
Title: Potential issues accessing Outlook mailboxes through one or more connection methods
User impact: Users may experience errors or failures when accessing their Outlook mailbox through any connection method.
Current status: We've identified a portion of infrastructure responsible for processing request flow traffic that isn't operating at expected thresholds. We've since redistributed traffic to alternate infrastructure and are monitoring to confirm if our actions alleviate impact as expected.
Next update by: Wednesday, October 1, 2025, at 4:00 AM UTC
Title: Potential issues accessing Outlook mailboxes through one or more connection methods
User impact: Users may experience errors or failures when accessing their Outlook mailbox through any connection method.
We're investigating a potential issue and checking for impact to your organization. We'll provide an update within 60 minutes.
Next update by: Wednesday, October 1, 2025, at 2:00 AM UTC
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