When a user forwards a message that contains an attachment and this user checks the box, 'Send a copy of this message to recipients' email address(es)' the attachment link that is sent does not work. I tested this using my personal Gmail account and Exchange account. As an example the link looks like this, "/access/content/attachment/33cf8034-198e-4bf9-8771-abedeaafbca7/Messages/10e98ac3-1981-492a-a43f-a1ca919f4567/OTS_Export.pdf." It is missing the main part of the URL e.g. "http://qa3-us.sakaiproject.org:8086." So far this only happens with forwarded messages.
1) Send message with attachment
2) Forward the message with attachment, select "Send a copy of this message to the recipients' email address(es)"
3) Open the message that was sent to the email address and click on the link for the attachment
4) File does not open