Hello there, grippcharles-gma.
You can set up one email address to forward receipts from. It has to be the same one you use to sign in to QuickBooks Self-Employed. You might want to use your primary email in forwarding receipts to QuickBooks Self-Employed.
For more details about this feature, you can click this page: Forward receipt images to QuickBooks Self-Employed.
I'm just here if you have other questions. Take care!