title: Comment on magento contact us form
body: <p>I want to make comment as optional part of contact us page. I have removed the class that validates the comment on the contact us form.</p>
  
  <pre><code>&lt;li class="wide"&gt;
      &lt;label for="comment"&gt;&lt;?php echo Mage::helper('contacts')-&gt;__('Comments or Questions:') ?&gt;&lt;/label&gt;
      &lt;div class="input-box"&gt;
          &lt;textarea name="comment" id="comment" title="&lt;?php echo Mage::helper('contacts')-&gt;__('Comment') ?&gt;" cols="5" rows="3" &gt;&lt;/textarea&gt;
      &lt;/div&gt;
  &lt;/li&gt;
  </code></pre>
  
  <p>it does not show any frontend error but if i don't write any comment i get error message "Unable to submit your request. Please, try again later".</p>
  
  <p>After Help of TBI I found following error -</p>
  
  <pre><code>exception 'Exception' in 
  /app/code/core/Mage/Contacts/controllers/IndexController.php:92 Stack trace: #0 
  /app/code/core/Mage/Core/Controller/Varien/Action.php(419): Mage_Contacts_IndexController-&gt;postAction() #1 
  /app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action-&gt;dispatch('post') #2 
  /app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard-&gt;match(Object(Mage_Core_Controller_Request_Http)) #3 
  /app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front-&gt;dispatch() #4 
  /app/Mage.php(683): Mage_Core_Model_App-&gt;run(Array) #5 
  /index.php(87): Mage::run('default', 'store') #6 {main}
  </code></pre>