Email Setup - Exported website one.com

Hi, I have created a website via the designer which contains a form also created in webflow.
The website is exported and hosted on one.com. Email hosting is also set up with this company.

I am hoping to setup the form submissions correctly so that I can receive them to my chosen email, but I am having some difficulty in doing so. I have read the following two article guides but it I think I am missing something here…

How would I go about this? Would really appreciate some advice…