Evolution – Could not connect to Exchange backend process….

This occasionally occurs for me in Evolution when picking up mail from my Exchange server. From this point new emails are displayed but don’t have any content. The solution – remove the Exchange directory’s. This should keep all settings, but then polls the mailbox again to collect content (NOTE: it’s a good idea to back up the contents of the /evolution directory first):

$evolution –force-shutdown
$ cd ~/.evolution
$ rm -rfv exchange/

Then restart Evolution and it should poll the mailbox and work!

EDIT:  This stopped working – now I have to run evolution as root and it seems to work again.  Very odd (& not very secure)