Move Outlook Mails to Sharepoint

Hi,

Been searching around for this but don't seem to find the answer.  So, I have a mailbox with thousands of email that I would like to move to Sharepoint for archiving purposes.  Currently, these emails are organized using folders and sub-folders in Outlook 2010 (Exchange 2010).  What I need to know is how can I move these emails along with the sub-folders?  Drag and drop don't seem to work with folders.

Thanks