title: AWS CloudWatch logs: How to send an email notification when particular error message is logged by lambda
body: <p>I have to monitor CloudWatch logs for particular lambda. When the specific error message such as HTTP-50X is logged to CloudWatch, then we need to send an email notification to alert that the something is wrong.</p>
  <p>We need help to create alert email in AWS to monitor manually the logs to see if there is any such error logged.</p>