I have added 3 more parameters to this hook
do_action( 'updraftmanager_add_new_zip_go', $this->slug, $name, $this->plugin, $addrule, $this->manager_dir.'/'.$name, $comment, $this );
Finally add the code snippet to trigger the email
add_action( 'updraftmanager_add_new_zip_go', function( $slug, $name, $plugin, $addrule, $new_file, $comment, $class ) {