Attachment File In Mail(Unknown Format)

[Zeus]

Hi, In my program, using java, i am not able to get the attachment files in the same format (.jpeg,....etc,) as i send through mail.some time i am able to get, some time i get in unknown format.

Any idea to fix this or any new code regarding this...
Below is the Attachment Code Part.

MimeBodyPart attachmentPart = new MimeBodyPart();
DataSource source = new FileDataSource(filename[i]);
filedisplayname = filename[i].substring(filename[i].lastIndexOf("/")+1);
attachmentPart.setDataHandler(new DataHandler(source));
attachmentPart.setFileName(filedisplayname);
multipart.addBodyPart(attachmentPart);

{i am trying to attach mutiple Files in a mail.}

[Eranga]

Better to validate the content type.

MimeBodyPart attachmentPart = (MimeBodyPart)part; // Main body part
if (attachmentPart .isMimeType("text/plain")) {
   // Plain text
} else {
    EMailAttach ema = new EMailAttach();
    ema.name = decodeName(part.getFileName());
    File savedir = new File([receiving_attachments]);
    // Make sure path exist
    File savefile = File.createTempFile("emailattach", ".atch", savedir );
    // Save the path accordingly
}

[Zeus]

actually the attached file is opening in gmail bt in yahoo it is of unknown format. can any one guess what may b the reason.

[Eranga]

What's the attachment file extension in yahoo you found?

[Zeus]

The file extention is the same as we give but in most mail servers i could not get that in rite format. Can any one give me another set of code which u may b using to attach files.

[Eranga]

What you mean but not get the right format? Is it different from what you've attach and you downloaded from the other end?

[Zeus]

Ya...Some unknown Format that v cant read

[Eranga]

If it's happen only in Yahoo, then yahoo mailbox do some conversion. Did you check that?