message.setText("this just for test");
message.setSubject("For test");
Multipart m = new MimeMultipart();
BodyPart body = new MimeBodyPart();
DataSource source = new FileDataSource(new File("E:\\path.txt"));
body.setDataHandler(new DataHandler(source));
m.addBodyPart(body);
message.setContent(m, "file");
message.setSentDate(new Date());   
Transport.send(message);