How to clear the Outlook cache on a Mac

Method 1: Reset Account (Recommended for most users)

1. Open Outlook.

2. Go to Tools in the menu bar, then select Accounts.

3. Select the account you want to reset.

4. Click Manage

5. Click Reset Account

Method 2: Manually clear cache folders

1. Quit Outlook completely.

2. Open Finder, then click Go in the menu bar.

3. Hold down the Option key on your keyboard to reveal the hidden Library folder, and click Library.

4. Navigate to the Caches folder.

5. Locate and select the folder named com.microsoft.outlook and move it to the Trash.

6. Open the Trash and empty it to permanently delete the files.