Hello. We have users that are in cached mode with Outlook 2007 against Exchange 2003 SP2. The Send/Receive settings state to include the Address book and is scheduled to send/receive every 5 minutes. Mail is synchronizing fine but not the OAB. My question is, does the Exchange mailbox need to be checked on ("include the selected account in this group") in order for the OAB to be downloaded? See my attached files. Thank you.