I recently installed the Open Source version of the mail server and so far like it a lot. I changed from Exchange 2003.

I tried briefly to install Zimbra Desktop under my Active Directory login on a PC. I saved the login/password and for me that works fine.
I found however that when a different user logs in with their logins and open Zimbra Desktop, they open my inbox.

Is there a way to prevent this behavior? Did I miss something?