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Set connection time-out limits for IMAP4

 

Applies to: Exchange Server 2013

Topic Last Modified: 2012-11-28

You can use the EAC or the Shell to configure the connection time-out limits for idle authenticated and unauthenticated IMAP4 connections.

For additional information related to IMAP4, see POP3 and IMAP4.

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  1. In the EAC, navigate to Servers > Servers.

  2. In the list of servers, select the Client Access server, and then click Edit Edit icon.

  3. On the server properties page, click IMAP4.

  4. Scroll down and click More options.

  5. Under Time-out settings, use the following settings:

    • Authenticated time-out (seconds)    Specifies the time to wait before closing an idle authenticated connection. The default value is 1,800. The possible values are from 30 through 86,400.

    • Unauthenticated time-out (seconds)   Specifies the time to wait before closing an idle connection that isn’t authenticated. The default value is 60. The possible values are from 30 through 3,600.

  6. Click Apply, and then click OK to save your changes.

After you've set the connection time-out limits for IMAP4, you must restart the IMAP4 services for the settings to take effect. For information about how to restart the IMAP4 services, see Start and stop the IMAP4 services.

This example sets the connection time-out limit for idle authenticated connections.

Set -ImapSettings -Identity CAS01 -AuthenticatedConnectionTimeout TimeValue

This example sets the connection time-out limit for idle unauthenticated connections.

Set -ImapSettings -Identity CAS01 -PreAuthenticatedConnectionTimeout TimeValue

After you've set the connection time-out limits for IMAP4, you must restart the IMAP4 services for the settings to take effect. For information about how to restart the IMAP4 services, see Start and stop the IMAP4 services.

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

To verify that you’ve successfully set connection limits, do one of the following:

  1. In the EAC, navigate to Servers > Servers.

  2. In the list of servers, select the Client Access server, and then click Edit Edit icon.

  3. On the server properties page, click IMAP4.

  4. Scroll down and click More options.

  5. Under Time-out settings, verify the connection settings are correct.

Or

  1. Run the following command in the Shell.

    Get-ImapSettings | format-list
    
  2. Verify the connection settings are correct.

After you set authentication time-out limits for IMAP4, you may also want to:

Enable IMAP4 in Exchange 2013

Set connection limits for IMAP4

 
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