In order install Symantec Endpoint Protection on a Mac client, we need to export the client installation package from the SEPM and then deploy the package manually.
Following the article to create the package for Mac
We can use the following methods to deploy the Package on the Mac computers:
2.Altiris Sepic Component
3.Apple Remote Desktop
4.From Terminal application on the Mac
We can also install Symantec Endpoint Protection silently on Mac clients by
running the following command from the Terminal application on the Mac:
/usr/sbin/installer -pkg pathToPackage -target MountPoint
pathToPackage is the location of the install package,
MountPoint is the location to place the package on the client computer.
You must be logged in as root to run the silent install. Otherwise, you can append sudo to the beginning of the silent install command.