Finding Form Coding

Usually in the view file for the page. Where that is depends on your file structure, and on the view being called from the relevant page controller. The relevant controller depends on the routing being used.

The routing is conventionally controller/method. Can you post the url of the page (without the domain name for your privacy) and we will make some suggestions of where to look.

Best wishes,

Paul.

PS on re-reading your post the email address could be stored in the database, in an email configuration file, or hard-coded into the controller.