Major Description
As an addition to https://issues.apache.org/jira/browse/FTPSERVER-253, I think it would be nice to have a specialized reply that could be sent to the Ftplets. The reply could include information such as the attempted user name, password used by anonymous users, any exception that was thrown by the UserManager during authentication. Perhaps the exception is the most important piece that the Ftplets (like the one that does audit logging) would like to know.