Everything on IMAP connecting to an Exchange Server seems to work fine except when you try to open a folder with a space in the name. For Example "Sent Items". I don't know to much about IMAP but I can open this folder when connecting through telnet to the IMAP port. To open "Sent Items" i type in (? select "Sent Items") . Is evolution adding the quotes around the folder name? If not maybe it needs to.
Thanks,
Stephen Flynn