JavaMail sending mail attachment from string - encoding UTF-8

Question

My application has to send a textfile, which it first has to generate as a String. The text contains non-ASCII symbols, so i would like it to be UTF-8. I\'ve tried a lot of vari

Answer 1

I used to try send file name in url encoded. And it works for gmail

messageBodyPart.setFileName(UriUtils.encodePath(attachment.getAttachmentName(), "UTF-8"))

full code here:

if (!CollectionUtils.isEmpty(requestMessage.getAttachments())) {
            MimeBodyPart messageBodyPart;
            String fileName;
            File file;
            for (Attachment attachment : requestMessage.getAttachments()) {
                messageBodyPart = new MimeBodyPart();
                fileName = attachment.getAttachmentName();
                file = new File(fileName);
                FileUtils.writeByteArrayToFile(file, attachment.getAttachment());
                messageBodyPart.setDataHandler(new DataHandler(new FileDataSource(file)));
                messageBodyPart.setFileName(UriUtils.encodePath(attachment.getAttachmentName(), "UTF-8"));
                messageBodyPart.setDisposition(Part.ATTACHMENT);
                multipart.addBodyPart(messageBodyPart);
            }
        }