My Java application creates an e-mail and sends it to a user. If the e-mail is sent to a Gmail account and the user checks his e-mail online in a web browser, the image that is in the body and at the bottom of the e-mail (i.e. not an attachment) will be displayed. However, if the e-mail is sent to a user who checks his e-mail via Microsoft Outlook (i.e. the e-mail passes through a Microsoft Exchange Server), the image is converted to a binary file and then attached to the e-mail, and at the bottom of the e-mail, the filename “ATT00001.bin” is displayed. How do I fix this issue so that the image will be displayed?
Here is what the e-mail should look like with the image, which should be at the bottom of the e-mail.
But here is how the e-mail looks in Microsoft Outlook. There is no image, only a binary file.
Here is my code for generating an e-mail with an inline image.
MimeMessage message = mailSender.createMimeMessage();
message.setSubject("Subject");
MimeMessageHelper msg = new MimeMessageHelper(message, true);
msg.setTo("recipient@gmail.com");
msg.setFrom("sender@gmail.com");
msg.setSentDate(new Date());
Multipart multipart = new MimeMultipart();
MimeBodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setContent("<html><body>Test<br />"
+ "<img src='cid:101@gmail.com'/></body></html>", "text/html");
multipart.addBodyPart(messageBodyPart);
MimeBodyPart imagePart = new MimeBodyPart();
DataSource imgSrc = new FileDataSource(new File(getClass().getClassLoader()
.getResource("images/Energy_Office-logo.png").toURI()));
imagePart.setDataHandler(new DataHandler(imgSrc));
imagePart.setContentID("<101@gmail.com>");
// The following code does not fix the issue either.
// imagePart.setHeader("Content-ID", "<" + "101@gmail.com" + ">");
imagePart.setDisposition(MimeBodyPart.INLINE);
multipart.addBodyPart(imagePart);
MimeBodyPart pdfPart = new MimeBodyPart();
DataSource pdfSrc = new ByteArrayDataSource(attachment, mime);
pdfPart.setDataHandler(new DataHandler(pdfSrc));
pdfPart.setFileName("file.pdf");
multipart.addBodyPart(pdfPart);
message.setContent(multipart, "text/html");
message.saveChanges();
mailSender.send(message);
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Answer
I wrote the following code, and it solved my problem. The difference between this one and the one above is that I called setText instead of setContent for the body text, and I called attachFile instead of setDataHandler for the image.
private void send(String toAddress, String subject, String text, byte[] attachment) {
JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
mailSender.setHost(mailHost);
MimeMessage message = mailSender.createMimeMessage();
MimeMessageHelper msgHelper = new MimeMessageHelper(message, true);
msgHelper.setSubject(subject);
msgHelper.setFrom(fromAddress);
msgHelper.setTo(toAddress);
Multipart multipart = new MimeMultipart();
MimeBodyPart messageBodyPart = new MimeBodyPart();
messageBodyPart.setText(text, "UTF-8", "html");
multipart.addBodyPart(messageBodyPart);
MimeBodyPart imagePart = new MimeBodyPart();
imagePart.attachFile(new File(PdfMailServiceImpl.class.getClassLoader().getResource("images/Energy_Office-logo.png").toURI()));
imagePart.setContentID("<" + "101" + ">");
imagePart.setDisposition(MimeBodyPart.INLINE);
multipart.addBodyPart(imagePart);
MimeBodyPart pdfPart = new MimeBodyPart();
DataSource pdfSrc = new ByteArrayDataSource(attachment, mime);
pdfPart.setDataHandler(new DataHandler(pdfSrc));
pdfPart.setFileName(formFilename);
multipart.addBodyPart(pdfPart);
message.setContent(multipart, "text/html");
message.saveChanges();
mailSender.send(message);
}