Providing here as well, for those who don’t see the other thread.
If you or someone else helping with the site is comfortable with WordPress filters, we do have this one to change the destination email:
$email = get_option( 'admin_email' );
/**
* Filters the email to send Constant Contact Forms admin emails to.
*
* @since 1.3.0
*
* @param string $email Email address to send to. Default admin_email option.
*/
return apply_filters( 'constant_contact_destination_email', $email );
It’s not done at the moment, but I also want to offer a method to set the destination on each form individually.