submit form by email- successfully submitted prompt?

Hi There~ I am relatively new to creating forms in livecycle.... I am wondering if there is a way to let 'form-fillers' know that their form has been succesfully submitted, after clicking the "submit by email".  I did a test of my form (application) and submitted it by email (to myself) and nothing changed on the screen- although it did go through just fine.  I am afraid that people will hit submit multiple times, without knowing if it is going anywhere.  Thanks so much for your help!