Granting email access on Windows 10/11 allows email services to work properly on the device. Ordinarily, email access is enabled by default on Windows 10 devices. However, we must check to be sure that is it not disabled. To do that:

1. Type Privacy Settings in the search bar, then select Open.
2. At the left, scroll down and under App permissions, select Email. 
3. At the right, ensure that:
   • The Email access for this device is On. (If not, click change and drag the toggle to ON).
   • The Allow apps to access your email setting is set to On.
   • Under Choose which apps can access your email the Mail and Calendar is On.
4. Once you complete with the above settings, open the Mail app, and try to add your email account. In case the error pops up again, proceed to next method below.

As a built-in app in Windows 10, the Mail app gets its update from Microsoft Store. Based on the feedback we received from users who had this problem, they were able to fix the issue by updating the Mail app from Microsoft Store.

1. Open Microsoft Store.
2. Click the three-dots menu, then select Downloads and updates. This will display all the installed apps on the device.
3. Locate the Mail & Calendar app, then hit the Update (Download) button. This will download and update the app to the latest version.
4. Once the update is completed, launch the Mail app, then try to add the email account again.

Set up the Email account first in the Calendar app, then in the Mail app

1. Search for the Calendar app and open it.
2. Click Add account and follow the onscreen instructions to add your account in Calendar.
3. Wait few minutes until the calendar syncs.
4. Restart your PC and then open the Mail app to add your account.

Reset Mail and Calendar app

1. Go to Start > Settings and open Apps.
2. Select Apps & Features on the left to display all the installed apps on your device.
3. Locate the Mail & Calendar and click on it. Then choose Advanced options.
4. Scroll down and hit the Reset button to reset the Mail and Calendar app in default settings.
5. When reset is done, open the Mail app and try to add your email account.

Uninstall & Re-install Mail and Calendar app

1. Go to Start > Settings and open Apps.
2. Select Apps & Features on the left to display all the installed apps on your device.
3. Locate the Mail & Calendar and click on it. Then choose Advanced options.
4. Scroll down and hit the Uninstall button to remove the Mail and Calendar app from your PC.
5. Open the Microsoft Store, search for the Mail & Calendar app, then hit the Get button to download and install it.

Uninstall Mail and Calendar from PowerShell

1. Open PowerShell as Administrator. To do that:
   • In the Search box type: powershell
   • Right-click on Windows PowerShell and select Run as Administrator.
2. Copy and paste the command below in PowerShell, then press Enter.
   • Get-AppxPackage Microsoft.windowscommunicationsapps | Remove-AppxPackage
3. Close PowerShell once the command is executed.
4. Open Microsoft Store, search for the Mail & Calendar app, then hit the Get button to download and install it.
5. As soon as it is installed, launch the Mail app, and add the email account.