After the plugin is enabled, you should configure it. Choose from the menu. You should see this dialog appear:
In this dialog, you need to fill in:
the address of your Exchange server(R), e.g.
mail.mycompany.com
your account, or Exchange Mailbox, e.g.
joe
. Do not put in your domain
here!
your password. If you fill in your
password here, it is stored in encrypted format in
~/.kde/share/config/korganizerrc