After you complete a new installation of Exchange 2010 or after you add an additional Exchange 2010 server role to an existing Exchange 2010 server, you should complete the post-installation tasks. Because each server role offers several features that you can configure for your organization, make sure that you complete the post-installation tasks for each server role that you install.
About The Author
Anderson Patricio is a Canadian MVP in Cloud and Datacenter Management, and Office Server and Services, besides of the Microsoft Award he also holds a Solutions Master (MCSM) in Exchange, CISSP and several other certifications. Anderson contributes to the Microsoft Community with articles, tutorials, blog posts, twitter, forums and book reviews. He is a regular contributor here at Techgenix.com, MSExchange.org, ITPROCentral.com and Anderson Patricio.org (Portuguese).