User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20040913 Firefox/0.10 Build Identifier: Thunderbird version 0.8 (20040913) An email attachment of type .eml cannot be saved in a mail folder. I tried to do it by dragging and dropping into any of my folders (including the Inbox) and by saving it to my desktop and then trying to drag and drop it into a folder. Reproducible: Always Steps to Reproduce: 1. Compose a new email. 2. Add an existing email message to the new message as an attachment. 3. Send the email to yourself. 4. After receiving the new message, open it. The attachment is the email you attached (an .eml file). Option 1 5. Drag the attached .eml file to a mail folder (e.g. Inbox). Thunderbird will not allow you to save it there. Option 2 5. Drag the attached .eml file to your desktop. 6. Drag the .eml file from your desktop to a mail folder (e.g. Inbox). Thunderbird will not allow you to save it there. Actual Results: The attached .eml file could not be moved/saved into any of the mail folders. Expected Results: The attached .eml file should be moved/saved into any mail folder that it is dragged to.

*** This bug has been marked as a duplicate of 226877 ***