public OptionalThing<Integer> getLastReturnCode() {
            return OptionalThing.of(200);
        }

        @Override
        public java.util.Map<String, org.dbflute.mail.send.supplement.attachment.SMailReadAttachedData> getSavedAttachmentMap() {
            return java.util.Collections.emptyMap();
        }

        @Override
        public java.util.List<jakarta.mail.Address> getSavedToList() {

        final String name = pi.getName();
        final String encodedName = URLEncoder.encode(name, Constants.UTF_8_CHARSET).replace("+", "%20");
        response.header("Content-Disposition", "attachment; filename=\"" + name + "\"; filename*=utf-8''" + encodedName);
        response.header("Pragma", "no-cache");
        response.header("Cache-Control", "no-cache");

            if (inlineMimeTypeSet.contains(responseData.getMimeType())) {
                contentDispositionType = "inline";
            } else {
                contentDispositionType = "attachment";
            }

            final String encodedName = URLEncoder.encode(name, Constants.UTF_8).replace("+", "%20");
            final String contentDispositionValue;
            if (name.equals(encodedName)) {