We have set up an Exchange 2010 server and are almost ready to put our employees on it. We are not upgrading from another version of Exchange - we have never used it before. I have set the mailbox database to use the default offline address book. However, when we try to do a send/receive from Outlook 2007 (or even Outlook 2010), it says " Offline address book connecting to Microsoft Exchange" but goes no further. We left it running overnight and it was still sitting there with the same message this morning. Since everyone will be using Outlook 2007 or 2010, I just have it set for web-based distribution, and we have no plans to use public folders. We are just using the self-signed SSL certificate on the Exchange server, so I'm wondering if there is an issue with that, but I understand (possibly incorrectly?) that it doesn't necessarily use SSL for web-based distribution unless you change the settings in IIS to force it to. I've tried manually going under Send/Receive on the menu and downloading the address book and have the same problem.