Where can I add another email address to receive submissions on all my forms?

Where can I add another email address to receive submissions on all my forms?

You can add multiple email recipients to a notification email so that when someone fills the form a notification email will be sent to all of the emails added in the Recipient Emails field.

To get the email notifications for all your forms, you have to set up Notification Email on each of them using the same process.

Here is the guide, how to send notifications to multiple recipients.