Trying to backup my 47 GB Mailbox from SBS / Exchange 2003. I'm using Outlook 2010's export PST file function on a Windows 7 client. Cached Exchange Mode is turned off. Exported PST file only contains about 5 GB of mail with mostly more recent emails. After making backup goal is to archive old emails to get mailbox back down to a manageable size to improve performance. Mailbox contains about 50,000 emails spanning 10 years including numerous attachments of mostly PDF's and CAD Files. Export completes without any error messages but only exports recent emails. Exchange / SBS is a VM utilizing a VMware ESXi hypervisor.