I am currently developing an Outlook add-in designed to send phishing and spam reports using the makeEwsRequestAsync method. However, I am encountering a persistent error: ‘The remote server returned an error: (403) Forbidden.’ This error suggests that my request to the Exchange Web Services (EWS) is being denied, but I am unsure of the specific cause. I have checked the permissions of the user account being used, verified the EWS endpoint URL, and ensured that the authentication method is correctly implemented. Despite these efforts, the error persists. What additional steps can I take to troubleshoot and resolve this issue?