I am trying to work the example on page 606. When I fill in the form and submit it with the new user information it appears to work fine, but I do not get the confirmation email. I have used two different email addresses in the form. Step 5 mentions setting a valid "from" email address, but I still have email@example.com
there. I do not get any errors when I submit the form, but I also don't get the confirmation email. Is there some setting that I might be missing there? Please let me know. Thank you.