Microsoft is investigating issues with Outlook and Microsoft 365 after users report login failures and missing emails, alongside known bugs in classic Outlook.

Microsoft Office 365 includes the Outlook Web App client along with the subscription service. If you use an Outlook.com, formerly Hotmail, account, you access the email service using a Web browser.

Editor's note: This story was updated to provide more information. Thousands of users are reporting issues accessing Microsoft Outlook email as well as the tech giant's suite of Office 365 software on ...

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Drexel is transitioning email to Office 365, which offers better web and mobile device support, calendar and contact integration, 50 GB for storage, and improved email security. Matriculated students ...

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Office 365 email outage shows cloud resilience planning gaps and cascading failure risks. Exchange Online dependence highlights limited disaster recovery options for cloud email workflows.