Tuesday, July 24, 2012

What’s New in Exchange Server 2013 (Preview)



Server Roles:
In earlier version of Exchange Server like Exchange 2007 and Exchange 2010 used have 5 server roles. But Exchange 2013 preview only has 2 server roles they are mailbox server role and Client Access Server role.
Mailbox Server Role: The Mailbox server includes all the traditional server components found in Exchange 2010: the Client Access protocols, Hub Transport service, Mailbox databases, and Unified Messaging. The Mailbox server handles all activity for a given mailbox.
Client Access Server Role: The Client Access server provides authentication, redirection, and proxy services. The Client Access server itself doesn’t do any data rendering. The Client Access server is a thin and stateless server. There is never anything queued or stored on the Client Access server. The Client Access server offers all the usual client access protocols: HTTP, POP and IMAP, and SMTP.
What happened to Hub Transport Server and Unified Messaging Server role in Exchange Server 2013?
Functionality of the Hub Transport Server and Unified Messaging Server are still available but the Hub Transport Server and Unified messaging server role components distributed to Mailbox and client access server roles.
Management Tools:
In exchange server 2010, we have the management tools like Exchange Management console, Exchange Control Panel and Exchange Management Shell, but in Exchange 2013 Preview, we have a brand new management console named Exchange Administration Center and Exchange Management Shell.
Exchange Administration Center: It’s a Unified Management Console which replaces the legacy exchange management console and the Exchange control panel. This is similar to administration centre available in Windows 2012.
Exchange Management Shell: Lot of new shell commands are introduced based on the new option, for example we have an option to take mailbox report etc.
High Availability:
High Availability for Mailbox databases will continue to use the same Database Availability Group which is available in Exchange Server 2010. There are no major changes in the DAG with Exchange Server 2013 preview. The rewritten to code of transactional logs and exchange managed Store make the failover faster.
Messaging policy and compliance
Exchange 2013 preview has a new feature named Data Loss Prevention which helps to protect sensitive date and inform users of compliance policies. Data Loss Prevention will do the functions same like Mail Tips.
Archiving Retention and E Discovery:
In place hold allow an option to place a query based hold or litigation hold and In-place e discovery allows you to search and preserve data across multiple data repositories, this allows the ability to perform In-place Ediscovery search across exchange, SharePoint 2013 preview and Lync 2013 preview. Ability to Searching the mailbox and archive mailbox from OWA and users can apply personal tags to default folders from OWA.
Transport Rules:
Transport rules in Exchange 2013 preview is similar to exchange 2010 transport rules and having few additional options on the transport rule predicates and actions.
Mail Flow:
Mail flow in exchange 2013 has a new architecture made up of several different services: the Front End Transport service on Client Access servers, the Hub Transport service on Mailbox servers, and the Mailbox Transport service on Mailbox servers.
Self-Signed certificate:
Mailbox Server will have a default self-signed certificate and this will be automatically trusted by the client access server in exchange server 2013 preview which will avoid the certificate warning on the clients.
Public Folders:
The public folder architecture uses specially designed mailboxes to store both the hierarchy and the public folder content. This new design also means that there is no longer a public folder database. Public folder replication now uses the continuous replication model.
Site Mailbox:
Site mailboxes improve collaboration and user productivity by allowing access to both documents in a SharePoint site and email messages in an Exchange mailbox, using the same client interface.
Unsupported Configuration:
Exchange 2003 cannot be supported in a coexistence environment. Exchange 2013 preview Mailboxes can be accessed via the client like outlook 2007 SP3, Outlook 2010 SP1 and Outlook 2013 preview.

For more : http://technet.microsoft.com/en-us/library/bb124558(v=exchg.150)

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