This topic provides you with an overview of important new features and functionality in Service Pack 2 (SP2) for Microsoft Exchange Server 2010
1- Hybrid Configuration Wizard
Exchange 2010 SP2 introduces the Hybrid Configuration Wizard which provides you with a streamlined process to configure a hybrid deployment between on-premises and Office 365 Exchange organizations. Hybrid deployments provide the seamless look and feel of a single Exchange organization and offer administrators the ability to extend the feature-rich experience and administrative control of an on-premises organization to the cloud. For more information
For more info http://technet.microsoft.com/en-us/library/hh529921.aspx
2- Federated Delegation
In Exchange 2010 SP1, we recommended that organizations create a sub-domain of “exchangedelegation” for the account namespace in their federation trust with the Microsoft Federation Gateway. Now, in Exchange 2010 SP2, we have updated our recommendation and also automated the configuration process. If you use the Manage Federation or Manage Hybrid Configuration wizards when configuring a new federation trust, a pre-defined string is now automatically combined with an accepted domain for your organization and assigned as the account namespace for the federation trust. The account namespace for an existing federation trust is not modified by these wizards
For more info http://technet.microsoft.com/en-us/library/dd335047.aspx
3- Address Book Policies
Exchange 2010 SP2 introduces the address book policy object which can be assigned to a mailbox user. The ABP determines the global address list (GAL), offline address book (OAB), room list, and address lists that are visible to the mailbox user that is assigned the policy. Address book policies provide a simpler mechanism to accomplish GAL separation for the on-premises organization that needs to run disparate GALs
For more info http://technet.microsoft.com/en-us/library/hh529948.aspx
4- Cross-Site Silent Redirection for Outlook Web App
With Exchange 2010 SP2, you can enable a silent redirection when a Client Access server receives a client request that is better serviced by a Client Access server located in another Active Directory site. This silent redirection can also provide a single sign-on experience when forms-based authentication is enabled on each Client Access server
For more info http://technet.microsoft.com/en-us/library/bb310763.aspx
5- Mini Version of Outlook Web App
The mini version of Outlook Web App is a lightweight browser-based client, similar to the Outlook Mobile Access client in Exchange 2003. It’s designed to be used on a mobile operating system. The mini version of Outlook Web App provides users with the following basic functionality:
- Access to e-mail, calendar, contacts, tasks and the global address list.
- Access to e-mail subfolders.
- Compose, reply to, and forward e-mail messages.
- Create and edit calendar, contact, and task items.
- Handle meeting requests.
- Set the time zone and automatic reply messages
For more info http://technet.microsoft.com/en-us/library/hh529922.aspx
6- Mailbox Replication Service
In Exchange 2010 SP1, if you wanted to move mailboxes from on-premises to Outlook.com or to another forest, you had to enable MRSProxy on the remote Client Access server. To do this, you had to manually configure the web.config file on every Client Access server. In Exchange 2010 SP2, two parameters have been added to the New-WebServicesVirtualDirectory and Set-WebServicesVirtualDirectory cmdlets so that you don’t have to perform the manual configuration: MRSProxyEnabled and MaxMRSProxyConnections
For more info http://technet.microsoft.com/en-us/library/ee732395.aspx
7- Mailbox Auto-Mapping
In Exchange 2010 SP1, Office Outlook 2007 and Outlook 2010 clients can automatically map to any mailbox to which a user has Full Access permissions. If a user is granted Full Access permissions to another user’s mailbox or to a shared mailbox, Outlook, through Autodiscover, automatically loads all mailboxes to which the user has full access. However, if the user has full access to a large number of mailboxes, performance issues may occur when starting Outlook. Therefore, in Exchange 2010 SP2, administrators can turn off the auto-mapping feature by setting the value of the new Automapping parameter to
$false on the Add-MailboxPermission cmdlets
For more info http://technet.microsoft.com/en-us/library/hh529943.aspx
8- Multi-Valued Custom Attributes
Exchange 2010 SP2 introduces five new multi-value custom attributes that you can use to store additional information for mail recipient objects. The ExtensionCustomAttribute1 to ExtensionCustomAttribute5 parameters can each hold up to 1,300 values. You can specify multiple values as a comma-delimited list.The following cmdlets support these new parameters:
9- Litigation Hold
In Exchange 2010 SP2, you can’t disable or remove a mailbox that has been placed on litigation hold. To bypass this restriction, you must either remove litigation hold from the mailbox, or use the new IgnoreLegalHold switch parameter when removing or disabling the mailbox. The IgnoreLegalHold parameter has been added to the following cmdlets:
10- Multi-Tenant Support
Exchange 2010 SP1 introduced the ability to install in a hosting mode by using the
/hosting switch when running the installation script. However, in Exchange 2010 SP2, we no longer recommend installing Exchange using the
For more info http://technet.microsoft.com/en-us/library/ff923272.aspx