{
  "policies": {
    "ExtensionSettings": {
      "thunderbird-dspam@your-domain.com": {
        "installation_mode": "normal_installed",
        "install_url": "https://fileserver.summersoft.fay-ar.us/public/mail/dspam/latest/dspam_filter_manager.xpi",
        "updates_disabled": false
      }
    }
  }
}