Copy the program and it's RSC file to a new folder.
MyMAIL is using some environment settings to communicate with other applications and desktops, set these before starting the program.
Start the program and open "Options / User & server settings" in the drop down menue. Fill in the necessary user and server settings in the dialogue that appears.
The program asks the user where to stor the user data at the first startup.
Home, Startup or Selected path are the possible choises.