Sends an Account command.
Some servers require the ACCT command to be sent after signing in to grant access to specific server resources.
Reply codes sometimes allow to differentiate the handling of ACCT command:
- when account information is required for login, the response to a successful PASSword command is reply code 332;
- if account information is NOT required for login, the reply to a successful PASSword command is 230;
- if account information is needed for a command issued later in the dialogue, the server should return a 332 or 532 reply depending on whether it stores (pending receipt of the ACCounT command) or discards the command, respectively.