I want to get email notifications to the portal email address whenever a new user joins the portal.
My guess is that I should code a new product to do that.
Does such product already exist (for Plone 4)?
I checked content rules, but AFAICT it could work only if I made the users contentish themselves with something like membrane/remember, but for my requirements that would be overkill.
You can easily customize the registered.pt template add a simple call to a PythonScript sending out an email through the MailHost api.
Doing a proper customization of plone.app.users.browser.register.py is much more complex.
Is there an easy way in Plone to get email notifications when new users join the portal?