This has been fixed
List of E-mail clients for which the Antispam protection can be enabled
This is a known issue
Acronis True Image 2019 is currently installed on a Mac.
You launch the program and it detects that a newer version of the software is available.
When you try to download and install it, an error occurs: "For security reasons, updates that downgrade versions of the application are not allowed".
Known issue with the live update.
Email notifications can be set up in two ways:
1) per backup task (Windows only)
2) universally for all existing and future backup tasks (Windows, Mac)
Per-backup notifications are more configurable, but are more complicated to set up.
Global notifications are easy to enable, but are less informative.