How to send an autoresponder email to my customer after they submit the form

Hello,

Question: I remember I used an option to email to my customer after the form is submitter. Could you please remind me where is it?

Thank you

Hello, 

Kindly refer to the below guides to set up email notifications and autoresponder emails. 

1. Explanation of Email Notification and Autoresponder Settings

2. How to Setup SMTP for a Form

I hope this helps. 

Thanks.