Discontinued Features from Exchange 2010 RTM to Exchange 2010 SP1

This section lists the Exchange Server 2010 RTM features that are discontinued in Exchange Server 2010 SP1.

Export-Mailbox and Import-Mailbox cmdlets

Use export requests or import requests. For more information, see Understanding Mailbox Import and Export Requests.

Enable-AntispamUpdates

Use Forefront Security for Exchange Server to obtain automatic anti-spam updates. For more information, see Microsoft Forefront Security for Exchange Server.

Federated Delivery

Use Tenant Mail Flow control. For more information, see Understanding Transport in a Cross-Premises Deployment.

ISInteg

Use New-MailboxRepairRequest or New-PublicFolderDatabaseRepairRequest

Managed folders in the Exchange Management Console (EMC)

In Exchange 2010 SP1, use the Shell to administer managed folder features such as managed default folders, managed custom folders, and managed folder mailbox policies. You can use the EMC and the Shell to manage retention policies and retention tags, the new messaging records management (MRM) feature introduced in Exchange 2010. For more information, see Deploying Messaging Records Management.

source: http://technet.microsoft.com/en-us/library/aa998911.aspx