Hi,
I have had the same issue. Took me two days of investigation.
My failure was: The login was set to sommthing like: Harry.Schuh. So you can log on at the webinterface with "Harry.Schuh" as username.
I set the Username in the Ourtlook Scalix Connector to: "Harry.Schuh@scalixmailaccount.com" which causes the sysnc error.
After deleting and creating an new Outlook profile with only "Harry.Schuh" all went back to normal and smartcache is working.
This was testet with: Outlook 2003 and Outlook 2007 on Windows XP with the 11.3.0.77 connector and will be reproducible.
Hope this will help people running into same issue
@lex
