How may set the form email address for adding form data by email?

How may set the form email address for adding form data by email?

Currently the form's email address is chrisjj2-116@forms.zohocreator.com but I'd like to set it to something more friendly.

I'd guess the mechanism is Properties, Form Alias Email ID: except it appears to have no effect on the form address shown by More Actions, Email Data and I can find no mention of it in Help.

Thanks.