Tried configuring MS outlook adapter in Oracle Integration Cloud (OIC) Env. The connection was successful. But when testing the complete implementation getting below error.
https://outlook.office.com/api/v2.0/me/sendmail returned a response status of 403 Forbidden
"error":{"code":"ErrorAccessDenied","message":"Access is denied. Check credentials and try again."
<genericRestFault><errorCode>403</errorCode><errorPath><![CDATA[POST https://outlook.office.com/api/v2.0/me/sendmail returned a response status of 403 Forbidden]]></errorPath><instance><![CDATA[{"error":{"code":"ErrorAccessDenied","message":"Access is denied. Check credentials and try again."}}]]></instance></genericRestFault>
:Application Error
I am successfully able to test the OIC Microsoft Outlook adapter to send email with attachment.When you configure the Adapter,please make sure that you have correctly set the followings.
Client Id: Client Secret: Scope: https://outlook.office.com/mail.send offline_access