I have Jenkins version 1.480.3 installed on my machine and Email-Extention Plugin 2.30.2.
Test mail from \"Manage Jenkins\" section works fine. When I add editable email
At first you have to create a template http://url-to-jenkins/emailexttemplates/.
In the field "Project Recipient List" you can add some emails (comma separated).
You can also insert global variables (Manage Jenkins > Configure System > Global properties) with:
${ENV, var="PATH"}
The "Advanced Settings..." option provides a trigger management, just add "Recipient List" and now you should get some emails by Jenkins.