Download Links:
Zoom version 5.1.2 for macOS: https://www.sakya.org/class/zoomusInstaller.pkg
Zoom version 5.2.0 for macOS: https://www.sakya.org/class/zoom-cloud-meetings-5-2-0.pkg
Zoom version 4.6 for macOS: https://www.sakya.org/class/ZoomInstaller.pkg