> What I would like to do is run
>=20
> TestMailer::deliver_test_email in the console and get the details or =
run

This should be:

   TestMailer.deliver_test_email=20

The deliver_test_email method is a class method, so you call it by =
passing the 'deliver_test_email' method call to 'TestMailer' class by =
using a period '.' in between.

You are using :: which is telling Ruby to look up the constant =
"deliver_test_email" within the module TestMailer which is why it is =
throwing an error, as there is no module called TestMailer, only a class =
called TestMailer.

Mikel Lindsaar