win7pro machine, Outlook 2007 .ost file, auto archive hasn't been working, so I have been dragging emails from .ost folders to the Archive .pst folders. That usually works, but the last couple of days, I keep getting the almost full message. Is there something else I need to do/run to get the .ost file size reduced? We can certainly look at why Auto Archive is not working, but I'd prefer to not focus on that at the moment, as I think I had a question on that about a year ago and was never able to resolve it. Something to do with our Server, I have to manually move mail for everyone, not just my .ost.