Intent emailIntent = new Intent(Intent.ACTION_SEND);
Uri U=Uri.parse("file:///sdcard/logo.png");
emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL,"sivafarshore@yahoo.com");
emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Test");
emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, "This is email's message");
emailIntent.setType("image/png");
emailIntent.putExtra(android.content.Intent.EXTRA_STREAM,U);
startActivity(Intent.createChooser(emailIntent, "Email:"));