I have an exchange email account at work. My .ost file is around 5.5Gb in size.
At home I have setup Outlook with my Exchange account and added all the same mailboxes that I use at work. However, my .ost file is only 365mb.
Is there something wrong with the cache mode and/or is something not downloading and etc?
I tested deleting my .ost file on my work machine, and it downloaded all the 5gb .ost again. So all the mail must still be on the server.