Unable to get OAuth2 token from authorization code

[DingBong]

Hi,

I've tried to connect SMTP to Exchange Online using oAuth 2.0 authentication. However, when I try to retrieve the token, I get an error "Unable to get OAuth2 token from authorization code". When I try to insert the access token from the URL in jwt.io, I get an issue that it cannot be read.

This is a local installation and uses version 2.6.6 6825db7.

Details:
URL smtp.office365.com
port 587
Authentication oAuth 2.0
Authentication Provider Microsoft
OAuth2 Tenant Contains the Tenant ID
OAuth2 Client ID Contains the Client ID
OAuth2 Client Secret Contains the Client Secret

I click on the button to get the token. After logging into Entra, I get the message Unable to get OAuth2 token from authorization code.

Can anyone provide guidance on a potential fix?

[dauphinpasdroit]

Hey, did you find the solution to your problem ?