The following topics are new:

• 32-Bit ASP.NET on a 64-Bit System Causes Outlook Web Access to Fail
  
• Administrator Cannot Connect to the Administrator Mailbox Using POP3 or IMAP4
  
• Duplicate Read Receipts Are Sent When Using POP3 or IMAP4
  
• Exchange Management Console Unable to Connect to Active Directory with Event ID 40960
  
• Exchange System Attendant Does Not Start on a Computer that is Running Exchange 2007 After You Rename a Windows Server 2003 Domain
  
• Outlook Web Access Returns an Unexpected Response
  
• POP3 and IMAP4 Issues
  
• POP3 and IMAP4 May Not Work as Expected After You Upgrade to Exchange Server 2007 SP1
  
• Users Cannot Access the Global Address List in Outlook Web Access
  

The following topics have recently been updated:

• Diagnostic Logging of Exchange Processes
  
• Exchange 2007 System Requirements
  
• Exchange Management Console Errors and Issues
  
• How to Configure Cluster Networks for a Failover Cluster
  
• How to Configure the DNS TTL Value for a Clustered Mailbox Server Network Name Resource
  
• How to Configure the Node and File Share Majority Quorum
  
• How to Create a Windows Server 2008 Failover Cluster for Cluster Continuous Replication
  
• How to Install Exchange 2007 SP1 Prerequisites on Windows Server 2008 or Windows Vista
  
• How to Install the Active Clustered Mailbox Role in a Single Copy Cluster on Windows Server 2003
  
• How to Manage Calendar Options for IMAP4
  
• How to Manage Calendar Options for POP3
  
• How to Move a Mailbox Across Forests
  
• How to Prepare Active Directory and Domains
  
• Installing a Single Copy Cluster on Windows Server 2003
  
• Installing a Single Copy Cluster on Windows Server 2008
  
• Installing Cluster Continuous Replication on Windows Server 2008
  
• Lost Log Resilience and Transaction Log Activity in Exchange 2007
  
• Managing Client Access
  
• Outlook Web Access Issues
  
• Overview of POP3 and IMAP4
  
• Performance Counters
  
• Planning and Implementing a Split Permissions Model
  
• Planning for Client Access Servers
  
• Proxying to a Client Access Server Fails After RedirectToOptimalOWAServer Is Set to False
  
• Set-ResourceConfig (RTM)
  
• Users Cannot Log On to Outlook Web Access Because of Insufficient User Rights