I have a chronoforms 7 form that is sending 2 e-mails on submission. It's a registration form for a yearly event.
The form is 2 groups, 3 pages total. First group and page shows the "Active Registration" list for the user. They then can choose to add a new, or edit an existing one. That takes them to the 2nd group where page 1 allows the addition/updating of the registration and page 2 is the end page with the actions and a redirect back to page 1.
There are no e-mail actions in the form, I'm using the "settings" area with the e-mail configured.
The user gets 2 e-mails and when I check the administrator e-mail it sends from, there's 2 copies in the sent.
The global User Email in v7 can be sent after both group 1 and group 2, it's safer to disable it and use your own Email action where you want the email to be sent
This is how v8 now works and this is the better way I think.