title: Mandrill giving invalid app key error
body: <p>I am just trying to integrate mandrill mail sending with my app below is my code in php</p>
  
  <pre><code>$args = array(
      'key' =&gt; '73357ad2-e59e-4669---------',
      'message' =&gt; array(
          "html" =&gt; "&lt;p&gt;\r\n\tHi Adam,&lt;/p&gt;\r\n&lt;p&gt;\r\n\tThanks for &lt;a href=\"http://mandrill.com\"&gt;registering&lt;/a&gt;.&lt;/p&gt;\r\n&lt;p&gt;etc etc&lt;/p&gt;",
          "text" =&gt; null,
          "from_email" =&gt; "xxx@xxx.com",
          "from_name" =&gt; "SIVOnline",
          "subject" =&gt; "Your recent registration",
          "to" =&gt; array(array("email" =&gt; "xxx@xxx.com")),
          "track_opens" =&gt; true,
          "track_clicks" =&gt; true,
          "auto_text" =&gt; true
      )   
  );
  // Open a curl session for making the call
  
  $curl = curl_init('https://mandrillapp.com/api/1.0/messages/send.json' );
  // Tell curl to use HTTP POST
  curl_setopt($curl, CURLOPT_POST, true);
  
  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
  // Tell curl not to return headers, but do return the response
  curl_setopt($curl, CURLOPT_HEADER, false);
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
  
  curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
  // Set the POST arguments to pass on
  curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($args));
  
  // Make the REST call, returning the result
  $response = curl_exec($curl);
  
  
   // Close the connection
      curl_close( $curl ); 
  </code></pre>
  
  <p>and it is giving me invalid api key after regenarating the key still i am getting the same error.</p>