title: What is the most broad P3P header that will work with IE?
body: <p>"Medium Security" in IE8 states that <code>third-party cookies that save information that can be used to contact you without your explicit consent</code> are blocked.</p>
  
  <p>What is the most broad P3P header that means we do not collect such information, and will not be blocked by IE?</p>
  
  <p>I want to skip the nasty details of the P3P policy, and just set the header that implies the least legal obligations. Its semantic should be:</p>
  
  <pre><code>we collect everything except information that can be used to contact you.
  </code></pre>
  
  <p>... without specifying anything else.</p>
  
  <p>Note that most P3P headers are inclusive - if they're not present, you're not allowed to use the information for that purpose - so the P3P header I'm looking for should contain a lot of flags.</p>