Authenticating using OAuth 2.0
OAuth 2.0 authentication is carried out using special access tokens.
These tokens are stored in the project file and need to be updated regularly. By default, the refresh token required to use the Microsoft Graph Mail API will expire after 90 days of inactivity and you will need to re-authenticate to obtain a new token. Token lifetime can be configured by an Active Directory administrator (see Microsoft documentation for details).
4/12/2024 6:16:02 PM