To use SSL Native on macOS 10.11 El Capitan or earlier, you must install SSL Native 6.3 or older. Legacy versions can be downloaded on our website.
From SSL Native 6.4 onwards, it is not possible to mount the .dmg on macOS 10.11 or earlier.
Apple ended support for macOS El Capitan September 2018.
Please note, the standalone X-Saturator installer is unable to mount in 10.11 El Capitan or earlier.
Please download SSL Native 6.3 and uncheck all plug-ins except for X-Saturator during installation.