Creating and managing Address Book policies
In Exchange 2010 SP2, Address Book Policies were introduced to help administrators segregate the address lists between different departments or business units within a single Exchange organization. There was a whitepaper on how to segregate address lists using Exchange 2007, but it was complicated, and there was limited support while upgrading to Exchange 2010 SP2 or the Hosted Messaging and Collaboration (HMC) platforms, which were primarily used by commercial e-mail hosters to host multiple customers on a single exchange organization, creating a logical isolation between the customer's organizations.
Address Book Policies (ABPs) contain the following:
One or more address lists
One default address list
One room address list
One offline address book
You can create multiple Address Book Policies (ABPs) such as the one in the picture and assign it to mailbox users. They take effect when the user's application tries to connect to e-mail address book service...
