How can 1 send a mail in which the content is an image file, by JavaMail?

Question

I want to send a mail which has content of a gif file. I don't want an attachment. It seems that the content type "image/gif" is not supported.
Many thanks

Answer 1

u can do the following
the solution is on implementing the DataSource class and overwrite getInputStream method
see the following code:
public static void setGifContent(Message msg) throws MessagingException {
FileInputStream s;
          try {
               s = new FileInputStream("c:\\try.gif");
          byte b[];
               b = new byte[s.available()];
          s.read(b);
          System.out.println("byte size"+b.length);
          String x=new String(b);
          ByteArrayInputStream b1=new ByteArrayInputStream(b);
// gif DataSource is an inner class
msg.setDataHandler(new DataHandler(new GIFDataSource(b)));
          } catch (FileNotFoundException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
     catch (IOException e1) {
          // TODO Auto-generated catch block
          e1.printStackTrace();
static class GIFDataSource implements DataSource {
private byte b[];
public GIFDataSource(byte[] stream) {
this.b=stream;
// Return image stream in an InputStream.
// A new stream must be returned each time.
public InputStream getInputStream() throws IOException {
if (html == null) throw new IOException("Null HTML");
ByteArrayInputStream b1=new ByteArrayInputStream(b);
return b1;
public OutputStream getOutputStream() throws IOException {
throw new IOException("This DataHandler cannot write HTML");
public String getContentType() {
return "image/gif";
public String getName() {
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