This is a sample Forms add-on that allows you to set up email notifications using form submit triggers.
This add-on allows users to create and configure email notifications that are sent when a Form receives submissions. Users can have emails sent to the creator of the Form and/or send short, customized reply emails to the Form submitter.
This add-on is a sample showing how to construct a Forms add-on, and also how to use triggers within add-ons. Its source code can be found at:
See also the quickstart documentation for this sample:
Note that this add-on has some limitations and should not be used for complex or important workflows.