title: Is it possible to customize the subject of an email-ext generated email based on the build that finished
body: <p>I know you can use a few tokens to customize the subject of the email, but I am looking for something a little more dynamic. I was hoping I could set an environment variable or write to a file somewhere from my build script, and have email-ext use that when formatting its email subject.  </p>
  
  <p>Is there anything available that might allow this?</p>
  
  <p>Thanks for the help</p>