Just upload overwriding the current sngine file according to the file structure... open includes/core/contact.php and look for $department_emails = [ 'general' => $system['system_email'], // Uses default system email 'support' => 'me@gmail.com', // Change to your support email 'billing' => 'billing@yourdomain.com', // Change to your billing email 'partnerships' => 'partnerships@yourdomain.com', // Change to your partnerships email ];