Set Text to the content of the mail message. Because Text is a TStrings object, you can use the string list editor at design time to compose the message. Use the TStrings object's LoadFromFile method to load the value of Text from a file. 

When the action executes, TSendMail displays a dialog for the user to compose the mail message. In that dialog, the body of the message is initialized to Text. 

ExecuteTarget 

LoadFromFile