Installing the Messaging Security Agent (Advanced only)

Installation Notes and Reminders:

  • You do not need to stop or start Microsoft Exchange services before or after the installation.

  • If information from a previous Messaging Security Agent installation exists on the client, you will be unable to install Messaging Security Agent successfully. Use the Windows Installer Cleanup Utility to clean up remnants of the previous installation. To download the Windows Installer Cleanup Utility, visit:
  • If you are installing the Messaging Security Agent on a server that is running lockdown tools, remove the lockdown tool so that it does not disable the IIS service and causes the installation to fail.

  • The Messaging Security Agent can also be installed during the installation of the Security Server. For details, see the Installation and Upgrade Guide.

  • The Messaging Security Agent does not support some Microsoft Exchange Server Enterprise features such as data availability group (DAG).

  1. Navigate to Security Settings > Add Computer.

    A new screen opens.

  2. Select Exchange server.
  3. Under Exchange Server Information, type the following information:
    • Server name: The name of the Microsoft Exchange server to which you want to install the agent.

    • Account: The built-in domain administrator user name.

    • Password: The built-in domain administrator password.

  4. Click Next.

    The installation wizard displays a screen depending on the type of installation you need to do.

    • Fresh installation: The agent does not exist on the Microsoft Exchange server and will be installed.

    • Upgrade: A previous version of the agent exists on the Microsoft Exchange server and will be upgraded to the current version.

    • No installation required: The current version of the agent exists on the Microsoft Exchange server. If the agent does not currently appear in the Security Groups Tree, it will automatically be added.

    • Invalid: There is a problem installing the agent.


    For the Spam Management Type, End User Quarantine will be used.

  5. Under Directories, change or accept the default target and shared directories for the Messaging Security Agent installation. The default target and shared directories are C:\Program Files\Trend Micro\Messaging Security Agent and C$, respectively.
  6. Click Next.

    A new screen opens.

  7. Verify that the Microsoft Exchange server settings that you specified in the previous screens are correct, and then click Next to start the installation.
  8. To view the status of the installation, click the Live Status tab.