Additional configuration steps for Exchange Server 2010 CAS proxying for use with OWA

Description

Additional configuration steps for Exchange Server 2010 CAS proxying for use with OWA

If CAS proxying is configured in an Exchange Server 2010 environment, you need to perform additional configuration steps to allow the CAS proxy servers to use Exchange Web Services impersonation.

Configuring Exchange Web Services impersonation on CAS proxy servers

  1. Create a new security group that contains only the Exchange Server 2010 CAS computers that act as proxy servers.

  2. Log on to an Exchange Server 2010 computer using an account that is assigned the "Role Management" role. By default, members of the "Organization Management" role group are assigned this role.

  3. Using Exchange Management Shell, run the following command line:

    New-ManagementRoleAssignment -Name:role assignment name 
    -Role:ApplicationImpersonation -SecurityGroup:security group name

    role assignment name can be a name of your choice.

    security group name is the name of the security group you created for the proxy Exchange 2010 CAS servers.

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