Outlook: Troubleshooting
Here are some issues you might see when using Outlook with Microsoft 365 and ways to solve them.
| If | Do this |
|---|---|
| You can't open Outlook. | Diagnose your error message to fix. |
| You're having trouble signing in. | Try one of these options. |
| You can't set up Outlook 2010. | You must patch Outlook before using Microsoft 365. |
| You can't set up Microsoft 365 on your iOS device. | Check these verification errors. |
| You can't use autodiscover or setup wizards. | Try manually setting up Outlook. This won't work with Office 2016, or if you're using a Mac. |
| You're missing email after moving from Workspace Email to Microsoft 365. | Follow these troubleshooting steps. |
| You can't send email on Windows 10. | See this solution from Microsoft. |
| You can't send or deliver email and get a bounceback message. | Find your error and its resolution. |
