Our coporate Exchange 2003 server was working very well for our staff's smart phones, iphone, and ipad. Suddenly, Exchange server 2003 w/sp2 is not able to provide server active sync with our company smart phones using Active Sync exchange email to pull emails from exchange server into cell phone inbox at all. I check exchange server IIS Active Sync service is running. If I configure a coporate email account with exchange active sync in a new smartphone or ipad, accounts are successfully created, but no email message, I can see smartphone or ipad active sync is turning and turning, but no message at all. I don't know how to reslove this problem. We have many department managers who are traveling and must need to know company emails in their cell phones and ipad. Please help.