title: How to send an Email of Assertion Result Failure message in jmeter
body: <p>I'm new to Jmeter. 
  I have a task where I want to send an email of Assertion result failure.
  I have an http request where I'm checking the result of an API, and if it contains appropriate response that test is successful. 
  Now the problem is if test is failed, I need to send its result (with failure message) via email.
  I have configured SMTP Sampler properly, it is sending mails. But I don't know how to send response assertion failure message as message body with that email.
  Can Anyone please help? </p>