We are getting ready to migrate some email users to Office 365 from a 3rd party email host. They use outlook 2010 to access their email. I know how to export to a .pst file, however he wants me to configure the users to automatically start saving to a .pst file so that way it is ready to import when we make the change over. How do I do this? I know that Outlook saves to a .ost file normally, not sure how to make it keep a updated .pst file automatically.