I found a stale link to a related question, that almost gets me there: Send Email Trigger Question - Building Better Courses Discussions - E-Learning Heroes (articulate.com)
In a nutshell, add a trigger that executes a javascript, sample code:
var subject="Enter your subject text here";
var body="Enter body text here";
window.location.href = "mailto:user@example.com?
subject"+subject+"&body="+body;
I'm curious if a variable created by a requirement that the user enter their email address prior to coming to the slide, could solve the problem.
The solution to my problem would then be to have two sequential triggers - the first to run the javascript, the second to send the email. A third trigger will be to close the course after those two are done.