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.
I finally realized that you must run the SMTP server as well when teamed with SmarterMail. Running the SMTP Proxy only does not work. Xeams works now. Next challenge is ClamAV.