One of the mailboxs in a Exchange 2007 Server stopped syncronizing the inbox folder with the client.
In the client no mail appears in the inbox. But the inbox folders are download correctly and the messages all appear.
If I turn off the cache I can see the mails in the inbox folder.
I got Sync errors in the Sync folder, but they don't help.
If I configure the mailbox in another machine, the problem exists the same and there are no mails in the inbox folder. So I think the problem is not related with the machine the user is working on.
So I think that the problem is server related.