We've decided to go move from a local Exchange environment to a Hosted Exchange environment. In doing so, we hope to reduce mailbox sizes before we move mail to the new provider. Does archiving mail in Outlook remove it from the Exchange store? My counterpart, at another site, decided to export every mailbox to PST and then let users start fresh. I don't want to do that. I want to keep mail newer than 6 months and push those to PST for import to the new provider, while keeping the mail older than 6 months local. I don't know what the best idea is in order to cut down the time/space it takes me to export the mail on our current Exchange server. Any advice would help as I'm pretty confused about how I should do this.