I have a friend who is running Xubuntu 12.04 through WUBI. They have Thunderbird installed in both Xubuntu and Windows and a single IMAP account set up in both (same IMAP account).
The problem is that the email provider only allows 20MB of storage. So the user need to get the message off of the IMAP server and into a local folder. However, he wants to be able to have access to those local folders in both Windows and Xubuntu. I'm sure there's away for Thunderbird to share access to these folders but I'm not sure how. Do I just need to set his local folders in Ubuntu to point to the folder in Windows or is it more complicated?