title: Why method mail() does not work?
body: <p>I'm doing a form of registration.</p>
  
  <p>I want that every time that an user is signed up, a mail arrive to me.
  So I made this:</p>
  
  <pre><code>mail("myemail@hotmail.com", "New User", $message);
  </code></pre>
  
  <p>In <code>$message</code> I have the username of new user.</p>
  
  <p>I try to do some test with fake data. I signed up correctly but the mail doesn't arrive. Why?</p>
  
  <p>Edit: now I try to add header:</p>
  
  <pre><code>"From: User $uname &lt;noreply@mysite.com&gt;"
  </code></pre>
  
  <p>Edit2: I have print mail and I receive 1! But I don't receive mail! What could be the problem? In junk mail I don't have mail!</p>