After releasing an application to production I had reports of users not receiving email. It seems some email clients have a problem displaying attachments (in this case, PDFs) nested in a multipart/related. I tried both attachment
and inline
for content-disposition. These were mostly web clients. After modifying UIBody.java in seam's mail jar, I was able to view the attachments in those email clients. The fix was to get rid of the multipart/related
and add the content to the email directly:
if (findMessage().getAttachments().size() > 0)
{
getRootMultipart().addBodyPart(bodyPart, 0);
for (MimeBodyPart attachment: findMessage().getAttachments())
{
getRootMultipart().addBodyPart(attachment);
}
}else{
getRootMultipart().addBodyPart(bodyPart, 0);
}
Has anyone else experienced this problem? Is this an appropriate solution/
