Domino policy takes precedence over Eclipse preferences. Eclipse preferences reside in the plugin_customization.ini file.
Note: Features and plug-ins being deployed to an existing Notes install, for example using a widget, should be signed by a trusted certifier.
Administrative trust defaults can be pushed to clients using Domino policy settings in the Administrative trust defaults page on the security policy document's Keys and Certificates tab. See Using Domino policy to set or verify trust for details.
Note: Alternatively, administrative trust defaults can be configured as part of the deploy.nsf in an install kit or in an installed deploy.nsf on disk. See Customizing an install kit to set certifier and trust defaults for details.