I’m all out of ideas, we run a citrix server with just 20 users.
Als have installed a seperate exchange 2010 sp1 server.
Now several users complain about a slow performance.
However this only happen by users that open multiple mailboxes.
When outlook starts it takes a while, after it starts outlook freezes for some time.
Than it works until accessing another mailbox, it becomes unresponsive again.
It also says it is not responding, after a while it comes back again.
I saw several topics here abou this, they are all closed with no resolution.