I finally got around to testing the latest version of EHCP on a real live VPS with Ubuntu 14.04. If you are having problems sending email, please try running this command:
sudo sed -i 's/^inet_protocols.*/inet_protocols = ipv4/g' "/etc/postfix/main.cf"
sudo service postfix restart
A new function has been added in the SVN version to prompt for changing this setting if it is not set to ipv4. This is the only email issue I ran into. Once I fixed that, emails are now being sent. Please let me know if that works for you.