From sgcIndy 2024.5.0 the XOAuth2 Authentication mechanism is supported. The SASL XOAUTH2 mechanism for use with the IMAP AUTHENTICATE, POP AUTH, and SMTP AUTH commands. This mechanism allows the use of OAuth 2.0 Access Tokens to authenticate to a user's Gmail account for example. TIdSASLXOAuth2 The TIdSASLXOAuth2 has the event OnAuthenticate which...