You can control who receives the email from FORM Butler in 3 ways:
- Create a DataSource that selects a User/Lead/Contact: FORM Butler will use the result of the DataSource to send the email to
- Use a Lookup Field on a DataSource: The Lookup must be of type User/Lead/Contact
- Use a Field that returns an email address on the DataSource: FORM Butler will send the mail to this email address