I tested the EmailSender package with Delphi, to send an e-mail, and it works great. As license code I used "tryit" -> "oSmtp.LicenseCode: = 'Tryit';". When the trial period expires, I imagine that my program will not send any more emails. Before buying the license, I would like to know if the license will allow me to use the program on the PC where I create the program with Delphi or all the PCs on which I'm going to install the program (4 in total)?