Internet Direct (Indy) Version 9.0.2 Beta
TIdSMTPServerThread.Username
Represents the authorization identity for the client account.

Username: string;
Description
Username is a public String member that identifies the authorization identity used when authenticating the account for the threaded SMTP client connection. Username is used and updated in the command action handler for the AUTH command that performs authentication using the internal server implementation. Username and Password are used as arguments to the CheckUser event handler for the SMTP server, when assigned in the server implementation.

Server implementations that rely on the OnCommandAUTH event handler may update the value of Username.