I have several users that are having inbox sync issues with Entourage 2008 EWS and Exchange 2010. Some mail takes hours or won't download to Entourage at all. When viewing their accounts via OWA I can see the missing messages. Entourage seems to know that they exist because in the lower right corner of Entourage of one of the users I can see the activity message, "Inboxownloading...0 of 6" and it counts all the way up to "Inboxownloading...6 of 6". It keeps doing this with the number of messages increasing for everyone that is not actually downloading. The other users that are having the syncing issue have the exact same symptoms. I have done everything I can think of and everything I have read online but the problems persists. Here is what I have done as of this morning, rebuilt databases, deleted and recreated accounts, reinstalled Office, emptied the Cache, run permission repair on the macs, rebooted the macs. None of this has helped. There is nothing common about the macs either. Some are running 10.5, some 10.6, and there is a mix of MacBooks and iMacs of different years. The only thing that all the users (working users and problem users) have in common is their account setups. Thanks for any help!