I have some of my fields set up with "required", like so...
<p>Your Name (required)
[text your-name] </p>
<p>Your Email (required)
[email your-email] </p>
But for some reason these are not working. I have been receiving emails with some of these fields empty, even though I have them set to "required". I am using the latest version of CF7 (ver 2.2.1).