Outlook is loading data from exchnage server

[nicolaas1]

It's the second day that we get this message from outlook.
At some mails al goes well but at some we get the message,
that exchange server is loading data.

What can this be, and how can we fix it.

 

[eod]

Going to need some more info, nothing showing in event logger? Possible export troubled mailboxes to .pst files, remove mailbox, rebuild mailbox and import from the pst.

Still going to need a bit more info my friend.

 

[geniph]

There's a few things that can cause that. There's a couple of Q articles that reference slow information store performance; take a look at Q183924 and Q216076 and see if either of them help with that.

The server may simply be processing more threads than it can handle, too. I have one server that's doing this on a very consistent basis; it's a pretty beefy box, but it's also serving 2500 mailboxes, most of which are open at the same time. The only thing I've been able to do it about it is to move the most unhappy users to another server. The Q articles I referenced helped a little, but not a lot. Performance Monitor indicates no problems with the server, and CPU and memory usage are well within optimal limits.