Step by step process to decommission a shared SMTP namespace in an Exchange Server organization.
Exchange Server Email Address Policies
Learn how email address policies work in Exchange Server 2010, as well as examples for creating new policies in both the console and shell.
Exchange Server 2007/2010: How to Change the Primary Email Domain
How to configure an Exchange Server 2007 or 2010 organization to use a new primary SMTP address for email recipients.