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What's New in Exchange 2013 Preview

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Exchange 2013 preview is available now for download. Exchange administrators are excited to know the new features of the new exchange server version. Let's get to know them.

I originally posted this Article in TechNet Articles : http://social.technet.microsoft.com/wiki/contents/articles/12673.what-s-new-in-exchange-2013-preview-en-us.aspx and thought I would also share it here via Expert Exchange.

What's New in Exchange Administration Center :
Exchange 2010  Exchange Management Console (EMC) and the Exchange control Panel (ECP) are replaced by Exchange Administration Center (EAC) in Exchange 2013 preview. Some of the EAC features include :

List View : this feature is designed to overcome the limitations of Exchange control panel (ECP). ECP was limited to display upto 500 items Exchange 2013 EAC viewable limit with list view is approx 20,000 objects. In addition you can page the results and configure page size and export the results to csv file.

Add/Remove columns to the Recipient list view : You can choose which columns to view, and you can save your custom list views.

Public Folder management :  Public folders are now in the EAC, and you don't need a separate tool to manage them like in Exchange 2007/2010.

Notifications   In Exchange 2013 Preview, the EAC now has a Notification viewer so that you can view the status of long-running processes and, if you choose, receive notification via an email message when the process completes.

 
What's New in Exchange 2013 architecture :

With Exchange 2013 Preview, we reduced the number of server roles to two: the Client Access server role and the Mailbox server role. (In addition, Exchange 2013 Preview works with the Exchange 2010 Edge 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.

All processing and activity for a specific mailbox occurs on the Mailbox server that houses the active database copy where the mailbox resides. All data rendering and data transformation is performed local to the active database copy, eliminating concerns of version compatibility between the Client Access server and the Mailbox server.

Architecture changes brings  changes  with client connectivity . RPC is not supported and there wont be RPC client Access service on the Client access server. All outlook connectivity must take place using RPC over HTTPS i.e Outlook Anywhere. In Exchange 2012 preview outlook clients not longer connects to server fqdn as they have done in all previous exchange server versions. Outlook uses AutoDiscover to create a new connection point comprised of mailbox GUID, @ symbol, and UPN suffix. Only Outlook 2007 and higher versions are supported with Exchange 2013 Preview.

 Where is my Information Store ?

In Exchange 2013 Preview, the Managed Store is the name of the newly rewritten Information Store processes, Microsoft.Exchange.Store.Service.exe and Microsoft.Exchange.Store.Worker.exe.
Now, each database runs under its own process, allowing for isolation of store issues to a single database. The Managed Store works with the Microsoft Exchange Replication service to manage mailbox databases, which continues to use Extensible Storage Engine (ESE) as the database engine. The architectural changes enable faster database failover and better physical disk failure handling.

What's new in Certificate Management :

In Exchange 2013 Preview, certificate management functionality is provided in the Exchange Administration Center, the new Exchange 2013 Preview administrator user interface.

All certificate management is performed on the Client Access server. The Mailbox server has a self-signed certificate installed by default. The Client Access server automatically trusts the self-signed certificate on the Exchange 2013 Preview Mailbox server, so clients will not receive warnings about a self-signed certificate not being trusted provided that the Exchange 2013 Preview Client Access server has a non-self-signed certificate from either a Windows certificate authority (CA) or a trusted third party.
Notifications center will display warnings when a certificate stored on any Exchange 2013 Preview Client Access servers is about to expire.

 
What's new in Messaging policy and compliance :

Data loss prevention (DLP) is a new feature in Exchange 2013 Preview. DLP helps you identify, monitor, and protect sensitive data through deep content analysis. Exchange 2013 Preview offers built-in DLP policies based on regulatory standards. DLP policies are simple packages that contain sets of conditions, which are made up of rules, actions, and exceptions that message administrators create in the Exchange Administration Center (EAC) and then activate to filter email. Litigation hold feature of Exchange 2010 is replaced by "In-Place Hold" feature.


What's new in Transport Rules :

New predicates are added to Exchange 2012 preview transport files in order to

•Detect sensitive information from message body and attachments.
•To detect messages sent from specific ip ranges.
•To detect messages with specific extensions
•To detect messags that contain attachments with executable content.
 
New Actions are added in order to :

•Controls how the sender of a message that goes against a DLP policy is notified.
•Stops the processing of all subsequent rules on the message.
•Requires TLS encryption when routing this message outside your organization.


Mail flow :

The transport pipeline in Exchange 2013 Preview is now 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.

The transport pipeline consists of the following services:

Front End Transport service :  This service runs on all Client Access servers and acts as a stateless proxy for all inbound and outbound external SMTP traffic for the Exchange 2013 Preview organization.

Mailbox Transport service :  This service runs on all Mailbox servers and consists of two separate services: the Mailbox Transport Submission service and Mailbox Transport Delivery service. The Mailbox Transport Delivery service receives SMTP messages from the Hub Transport service, and connects to the mailbox database using an Exchange remote procedure call (RPC) to deliver the message. The Mailbox Transport Submission service connects to the mailbox database using RPC to retrieve messages, and submits the messages over SMTP to the Hub Transport service. The Mailbox Transport service doesn't queue any messages locally.

Hub Transport service :  This service runs on all Mailbox servers and is virtually identical to the Hub Transport server role in previous versions of Exchange. The Hub Transport service handles all SMTP mail flow for the organization, performs message categorization, and performs message content inspection.. The Hub Transport service routes messages between the Mailbox Transport service, the Hub Transport service, and the Front End Transport service.

Messages from outside the organization enter the transport pipeline through a Receive connector in the Front End Transport service on a Client Access server and are then routed to the Hub Transport service on a Mailbox server. Mail routing in Exchange 2013 Preview recognizes DAG boundaries as well as Active Directory site boundaries. Also, mail routing has been improved to queue messages more directly for internal recipients.


Recipients Auditing

Exchange 2012 EAC can perform more advance level auditing for mailbox access.  The administrator audit log records any action, based on a Windows PowerShell cmdlet, performed by an administrator. This can help you troubleshoot configuration issues or identify the cause of problems related to security or compliance.

Clients

The Outlook Web App user interface is new and optimized for tablets and smartphones as well as desktop and laptop computers. New features include apps for Outlook, which allow users and administrators to extend the capabilities of Outlook Web App, Contact linking, the ability for users to add contacts from their LinkedIn accounts, and updates to the look and features of the calendar.


High Availability and Site resilience
Exchange 2013 Preview continues to make use of the database availability group (DAG) platform introduced in Exchange 2010 for both high availability and site resilience. Exchange 2013 Preview also includes enhancements to the DAG platform that improve manageability and reduce costs. These features include:

•Managed availability.
•Managed Store.
•Automatic configuration and management of DAG networks.
•Management via the Exchange Administration Center.
•Enhancements to DAG-related cmdlets to introduce new scenarios.
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by:vSolutionsIT
Yes, I am the original auther of the technet wiki artile. Editied the original Article.
Added below contents to the "High Availability and Site resilience" part of the article.

Exchange 2013 Previewincludes enhancements that enable you to support multiple databases (mixtures of active and passive copies) on the same disk,
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by:David Carr
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