You can remove your Outlook account from the Mail app and log in again. Step 4: After, relaunch the Mail app using Spotlight or double-click on the Mail app icon and check the data has started to sync.

Step 3: Select the Mail app from the list and click on Force Quit button. Step 2: Select Force Quit from the context menu.

Step 1: Click the Apple logo at the top-left corner on the Menu bar. This should refresh the app and its contents i.e. If the Mail app has been running in the background for quite some time, you can try to force quit and restart the app on your Mac. Step 6: Close the window and wait for some time to check if the problem is solved. Step 4: Under the General tab, click the drop-down menu next to ‘Check For New Messages.’ If your newly received emails are not syncing in the Mail app, here’s how to check if automatic refreshing to check emails is enabled or not. For that, the background refresh feature on your Mac needs to be active. When connected to the internet, the Mail app keeps checking for new emails in the background. Check if Automatic Mail Refresh Is Enabled Step 7: Close the window and wait for some time to check if the problem is solved. Step 6: Click the checkbox next to Enable This Account, if not selected previously. Step 5: Select your Outlook account from the left menu. Step 4: Click on Accounts tab in the Settings window. Step 3: Select Settings from the context menu. Step 2: Click on Mail at the top-left corner on the Menu bar. Step 1: Press Command + Spacebar to open Spotlight Search, type Mail, and press Return. If you manage more than one mailboxes using the Mail app, you’ll need to check the app has the permissions and settings to use your Outlook account. Check if Outlook Is Enabled for the Mail App If your internet connection works fine, follow the next solutions. We suggest running a speed test to ensure that your Internet Service Provider is not facing any downtime. Whenever you encounter any data syncing issues, the first step is to check your internet speed. If you face this issue, here are some solutions to help you fix Apple Mail not syncing with Outlook on your Mac. But what can lead to a bad experience is when the Mail app stops syncing your Outlook conversations.

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