Last week, we released an updated version of the Exchange Deployment Assistant (EDA).  In case you haven’t heard of this tool, EDA is a Web-based deployment tool that asks you a few questions about your environment and then generates customized instructions for migrating to Exchange 2010.  EDA was designed to make upgrading to Exchange 2010 or deploying a new Exchange 2010 organization as easy as following a checklist. Not only does the tool provide you with step-by-step instructions, but it also helps you verify that each step was completed successfully before moving on to the next step.


The version we released last week includes new cloud-based scenarios, such as cross-premises co-existence (where Exchange 2010 is deployed on-premises and in the cloud), and cloud-only deployments. The first co-existence scenario handles upgrading from Exchange 2003 to a cross-premises Exchange 2010 deployment.  Cross-premises scenarios for Exchange 2007 and Exchange 2010 are coming soon.  With coexistence, you get directory synchronization, single sign-on, Transport Layer Security (TLS) for transport, Free/Busy and calendar sharing, and more!

The cloud scenario involves migrating to Microsoft Office 365 for Enterprises. A cloud-only deployment is most often used when you want to migrate from your existing on-premises e-mail system to Exchange Online.

For more information, or to use EDA, visit  We welcome your feedback, too, so if you have any comments, concerns, questions or praise, please send them to the EDA team.