Hey there, you can use Get Outlook Mail Message activity to retrieve all the mails from outlook. Later you can use a foreach activity to loop through all the emails one by one. Inside foreach loop, you can use an Assign activity to capture the body of the mail and from that body you can fetch any required data. Following screenshot shows the workflow sample:
![image](https://aws1.discourse-cdn.com/uipath/original/1X/22a6dd1372e6b55700f1d683a80b630e5fe6c8c4.png)