However, the indexing of Outlook data occurs only when Outlook is running. Therefore, you may have to leave Outlook running overnight to determine whether performance issues are related to the building of your search indexes. Performance issues may increase when Outlook is running in Online mode.

Legacy Outlook for Mac 2011 does not work with macOS 10.15 Catalina Sending meeting updates with REST calendar sharing feature in legacy Outlook for Mac Categories no longer appear in the sidebar of individual calendars in legacy Outlook for Mac Known issues syncing Google accounts to the Microsoft Cloud Need more help? ... Have a feature request?

If the email message isn't sent successfully, for example because of connectivity problems or logon issues, it might be stuck in your Outbox folder. If you see a message in the Outbox folder, make sure your connection is working.

Get Copilot's help fixing my Outlook email connection. Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue. Repair a profile in Outlook In Outlook, choose File. Choose Account Settings > Account Settings.

If after setting up Outlook you run into trouble sending or receiving email, the cause could be a licensing issue, a profile problem, the wrong version of Outlook, or a mixture of other issues. Fortunately, there are several Microsoft Outlook troubleshooters that can be used to try and fix the problem.

Locate the Outbox in Outlook 2016 for Mac. Also determine whether your account is online or offline.

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Outlook Known issues in January 2025 updates [FIXED] Microsoft Editor proofing or spellcheck languages change unexpectedly in new Outlook for Windows Outlook Known issues in December 2024 updates [FIXED] Hovering over a hyperlink in an email may not display embedded URL in a pop-up tooltip in new Outlook Outlook Known issues in September 2024 ...

Tell me about I can't send or receive messages with Outlook Can you explain basic POP account settings in Outlook? Message service can be interrupted for several reasons. These are the most common problems.

Learn about why messages might be missing from your Outlook.com inbox and possible solutions.