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How to Set Connection Time-Out Limits for IMAP4

 

Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1, Exchange Server 2007

Topic Last Modified: 2007-08-22

This topic explains how to use the Exchange Management Console and the Exchange Management Shell to configure the connection time-out limits for idle authenticated and unauthenticated Internet Message Access Protocol Version 4rev1 (IMAP4) connections. In the original release (RTM) version of Exchange 2007, you could only set connection time-out limits for IMAP4 by using the Exchange Management Shell. In Exchange 2007 Service Pack 1 (SP1), you can also set connection time-out limits for IMAP4 by using the Exchange Management Console. Steps for doing this are included in this topic.

noteNote:
After you have set the connection time-out limits for IMAP4, you must restart the IMAP4 service. For more information about how to restart the IMAP4 service, see How to Start and Stop the IMAP4 Service.

To perform the following procedures on a computer that has the IMAP4 service enabled, the account you use must be delegated the Exchange Server Administrators role and membership in the local Administrators group for the target server.

For more information about permissions, delegating roles, and the rights that are required to administer Exchange Server 2007, see Permission Considerations.

  1. In the console tree, expand Server Configuration, and then click Client Access.

  2. In the work pane, click the POP3 and IMAP4 tab.

  3. In the work pane, select IMAP4 and then, in the result pane, click Properties.

  4. On the IMAP4 Properties page, click the Connection tab.

  5. Under Time-out Settings, do one of the following:

    • To set the connection time-out limit for idle authenticated connections, enter a number between 1 and 18000 in the box next to Authenticated time-out (seconds).
    • To set the connection time out limit for idle unauthenticated connections, enter a number between 1 and 200 in the box next to Unauthenticated time-out (seconds).
  6. Click Apply, and then click OK to save your changes.

  • To set the connection time-out limit for idle authenticated connections, run the following command:

    Set -ImapSettings -Identity CAS01 -AuthenticatedConnectionTimeout Timespan
    
  • To set the connection time-out limit for idle unauthenticated connections, run the following command:

    Set -ImapSettings -Identity CAS01 -PreAuthenticatedConnectionTimeout Timespan
    

For more information about syntax and parameters, see Set-IMAPSettings.

  • To set the connection time-out limit for idle authenticated connections, run the following command:

    Set -ImapSettings -Identity CAS01 -AuthenticatedConnectionTimeout Timespan
    
  • To set the connection time-out limit for idle unauthenticated connections, run the following command:

    Set -ImapSettings -Identity CAS01 -PreAuthenticatedConnectionTimeout Timespan
    

For more information about syntax and parameters, see Set-IMAPSettings (RTM).

For more information about how to manage IMAP4 settings on the Exchange 2007 Client Access server, see Managing POP3 and IMAP4.

To ensure that you are reading the most up-to-date information and to find additional Exchange Server 2007 documentation, visit the Exchange Server TechCenter.
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