public function add_recipients( $recipients = array() ) {

		foreach ( $recipients as $data ) {

			$data = wp_parse_args(
				$data,
				array(
					'address' => '',
					'type'    => 'to',
					'name'    => '',
				)
			);

			if ( $data['address'] ) {
				$this->add_recipient( $data['address'], $data['type'], $data['name'] );
			}
		}

	}