setCharset('utf-8'); // Without these lines the default caching mechanism is "array" but this uses // a lot of memory. // If possible, use a disk cache to enable attaching large attachments etc if (function_exists('sys_get_temp_dir') && is_writable(sys_get_temp_dir())) { Swift_Preferences::getInstance() -> setTempDir(sys_get_temp_dir()) -> setCacheType('disk'); }