YouSendIt Clone is almost exactly like the popular services called yousendit, youshareit, etc. How it works: For the administrator you can limit the file sizes, file types, amount of times a file can be sent, put a time limit on the file and set the script to auto delete should any rules be broken. For the visitor: He/she can send the file to anyone with an email address where the user clicks on a link sent by the system to allow for download.