PostCast Server is a free SMTP server program for Windows that enables you to send messages directly from your computer. It supports all e-mail programs. The program you already use for sending and receiving messages can be connected to the server in a very easy way - by altering just one parameter. Having done so, you can send messages in a usual manner. Once the program has been set, it performs all its tasks in the background. You can set the program to send messages on a daily basis, every hour, immediately after downloading them, or in some other time interval. If necessary, the program will automatically call your ISP and terminate the connection after completing its task.