In my company we have one Exchange 2007 server and integrate with Windows domain. As long as users login domain, when launch Outlook, it will automatically connect to Exchange server.
However when users try to connect by their own Outlook or smart phone at home, after entering email address and password, it does not work at all.
Please kindly advise if there is any setting I should check from the Exchange server. Also from the client side, should I configure as "POP3", "IMAP" or "Exchange Active Sync" account?
I really appreciate if anyone can give me some idea.