Not able to send Email using graph api

[abhilash.kumar.niit]

Hi,
I have purchased the outlook integration package which is working fine. But after the new release i tried to integrate the Graph Api and it has some issues might be a BUG.
i setup the personal email and group email accounts . when i am sending the test mail from the Personal email account the mail is going but as i try to send mail from the group email account it shows error giving below.

Error 500
Outlook Oauth: Error after requesting POST https://graph.microsoft.com/v1.0/me/sendMail; Reason: Access token validation failure. Invalid audience.. Code: 401.

Error code after clicking the url.

{"error":{"code":"InvalidAuthenticationToken","mes sage":"Access token is empty.","innerError":{"date":"2025-06-13T06:18:39","request-id":"5e5772b9-5627-425d-b6f3-43cf5e4d1233","client-request-id":"5e5772b9-5627-425d-b6f3-43cf5e4d1233"}}}

[victor]

For using Graph API Mail.Send API permission should be enabled for the Azure application in the Api Permissions tab.


Additionally about this functionality you can read in official documentation: https://docs.espocrm.com/extensions/...ail/#graph-api.