Something does not add up. The Forbidden message means that your host is blocking the form submission, presumably because they have some kind of server protection (typically based on Apache's mod_security2 – that's a web server protection, NOT a Joomla extension). However, the email you say you receive would mean that the page was submitted. These are mutually exclusive.
Do you see any of the changes you applied when you log out, log back in, and go to the Configure WAF page again?
What exactly is the content of the email you receive?
Do you receive the email when you click on Save & Close at the Configure WAF page, or at some other point in time?
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
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