5 articles · Curated and written by practitioners
Microsoft Exchange Online Outage Causes Email Failures, Auth Issues
Microsoft is investigating a widespread Exchange Online outage, tracked as EX1464935, causing email delivery delays, authentication errors, and mailbox access failures for customers worldwide.
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How to Change the Mailbox Language in Outlook
Learn how to change the mailbox language in Outlook, both through Outlook on the web settings and with the Set-MailboxRegionalConfiguration PowerShell cmdlet. Covers renaming default folders, date/time formats, and verifying the change.
How to Enable or Disable Copilot in New Outlook for Windows and Web
Turn Microsoft Copilot on or off in the new Outlook for Windows and Outlook on the web using the per-account Copilot toggle, with a privacy fallback for when the toggle is missing.
How to Fix Outlook Password Prompts When Connecting to Exchange Server
Stop Outlook's endless credential loop when connecting to Exchange. Clear cached credentials, fix the Microsoft 365 Autodiscover hijack, reset the token cache, and check the server.
Microsoft Confirms and Fixes Classic Outlook Crash Caused by Teams Meeting Add-in
Microsoft confirmed a known issue (EX1254044) where classic Outlook crashes and restarts in Safe Mode on older Office builds running the newest Teams Meeting Add-in, and has since shipped a fix.