Topic Last Modified: 2005-05-18

The IMAP4 virtual server has two protocol-specific settings:

• Include all public folders when a folder is requested   Unlike POP3, which allows clients to access only mail messages, IMAP4 clients have access to folders other than the Inbox folder. However, this ability to access other folders must be enabled on the virtual server.
  
• Enable fast message retrieval   Fast message retrieval improves performance by approximating message size, as opposed to actually calculating the message size. Performance improves because less processor work is required.
  

You select these settings on the General tab in the Default IMAP4 Virtual Server Properties dialog box.

The General tab in the Default IMAP4 Virtual Server Properties dialog box

For detailed steps about how to configure these settings, see the following topics:

• How to Enable Fast Message Retrieval for an IMAP4 Virtual Server
  
• How to Include All Public Folders When a Folder Is Requested on an IMAP4 Virtual Server