Deep Discovery Email Inspector downloads components from the Trend Micro ActiveUpdate server, the default update source. Deep Discovery Email Inspector can be configured to download components from another update source specifically set up in your organization.
Note:
If Deep Discovery Email Inspector is registered to Apex Central, you can configure Deep Discovery Email Inspector to download directly from Apex Central. For details on how a Apex Central server can act as an update source, see the Trend Micro Apex Central Administrator’s Guide.