Conditional Resources

Email subscriptions are not the right solution for production deployments. Emailing after each individual event would most likely cause too much noise, and people will just start ignoring it. It would be much better to set up error logging in a different way completely. You can make the email subscription optional by adding a condition to your resource.

CloudFormation can activate or deactivate resources based on certain conditions, which you need to set up in a separate template section titled Conditions. I usually put this ...