This weekend I upgraded my Exchange Server 2003's hard drives and restored the system back from the previous drives. Everything seems to be fixed however users cannot pull emails down into their Outlooks for some reason. They have POP3 accounts setup and 98% of them are able to send email fine, see emails in OWA fine, but cannot pull their emails down into their Outlooks. Any idea what switch or toggle I may have missed to allow this to occur? The users set as Exchange users are working fine. The upgrade was to switch everyone from POP3 to Exchange but I was not expecting to do it just yet. Thanks in advance!