Android - Result after sending E-Mail from Android App

Question

Possible Duplicates: StartActivityForResults always returns RESULT_CANCELLED for Intent.ACTION_SEND & Show Toast after email send in android?

I'd like to send an E-Mail from within my Android App.

I know you can do this with the following piece of code:

private void sendEmail(){
    Intent intent = new Intent(Intent.ACTION_SEND);
    intent.setType("message/rfc822");
    intent.putExtra(Intent.EXTRA_EMAIL, { "some_email1@gmail.com", "some_email2@gmail.com" });
    intent.putExtra(Intent.EXTRA_SUBJECT, "My Subject");
    intent.putExtra(Intent.EXTRA_TEXT, "My message");
    try{
        startActivity(Intent.createChooser(intent, "Send E-Mail"));
    }
    catch(ActivityNotFoundException ex){
        Toast.makeText(this, "There are no E-mail Clients installed on your Device.", Toast.LENGTH_LONG).show();
    }
}

What I want to know is whether or not the mail is successfully sent, or that the user has cancelled it (or something else went wrong).

I did try changing:

startActivity(Intent.createChooser(intent, "Send E-Mail"));

to

startActivityForResult(Intent.createChooser(intent, "Send E-Mail"), 123);

And adding the onActivityResult method:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data){
    super.onActivityResult(requestCode, resultCode, data);

    // We come back after the starting Email Activity Client
    if(requestCode == 123){
        // Mail is successfully send:
        if(resultCode == Activity.RESULT_OK){
            // Do something
        }
        else
            // Do something else
        }
    }
}

But Intent.ACTION_SEND only gives a resultCode of 0 (which equals Activity.RESULT_CANCELED), no matter if it's successful or not.

So my question is: Does anyone know a way around this, to catch and use the result when using an E-Mail Intent. OR does someone know a completely different (custom) way to send an E-Mail from within an Android App, which enables me to use a result? (WITH code examples provided please.)

Thanks in advance for the responses.

Edit: Made the second part of the question bold, to make clear this isn't a complete duplicate question..