There is no difference in the installer for Xeams Community and Enterprise Edition. It will
run as if you have purchased the Enterprise Edition for the first 30 days. It will then get
converted to Community Edition unless a license is purchased.
Here's a list of all the videos for Xeams
The following video goes over the plugin and provides step-by-step insturctions on implementing the pre-approval plugin.
This video explains what challenge response is and why you should disable it.
The Following video explains the concepts of email encryption and why you should encrypt emails on your server.