Microsoft Exchange Server 2003 and Windows Server 2003 Service Pack 1 will not be supported any longer. These products have reached the end of their lifecycle on 4/14/2009.

When we deploy Windows Server 2008 R2 forest functional level we will have additional feature:
-          Recycle bin, which, when it is enabled, provides the ability to restore deleted objects when Active Directory services is running.

Let�??s start test this feature:
1.       Create “test” user.

2.       Delete them.

3.       Enable �??Recycle Bin Feature�?�, we do this only one for domain.
PS [...]

Microsoft published new version of Microsoft Exchange Server it will be version 2010.
List of the new features and functionality that are included in Exchange 2010:

New Rights-Protected E-Mail Functionality with Active Directory RMS
New Transport and Routing Functionality
New Permissions Functionality
New High Availability Functionality
New Messaging Policy and Compliance Features
New Outlook Web Access Features
New Unified Messaging Features
Web Management Interface
New [...]

Microsoft published Exchange Remote Connectivity Analyzer tool. It�??s will help you test your Exchange connection from Internet.
The tool will allow you to remotely test the following services:
1. Microsoft Exchange ActiveSync Test
This test will simulate the steps a mobile device uses to connect to an Exchange Server using Exchange ActiveSync.
2. Microsoft Exchange ActiveSync AutoDiscover Test
This test [...]

How to configure Outlook Anywhere by GPO?
1. Download the Article-961112.adm package from Microsoft site.
2. In the Group Policy Object Editor add the Article-961112.adm file. Click right Administrative Templates and Click Add/Remove Templates. Click ADD, locate and select Article-961112.adm file and click Open.

3. Under User Configuration -> Policies -> Administrative Templates -> Classic Administrative Templates -> Article 96112 Policy [...]

“HTTP Error 404.3 – Not Found The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map …”
If you have this error on Windows Server 2008 fresh instalation you must install ASP feature within [...]