title: developing outlook add-in, to check if the sent mail item has been replied to
body: <p>So,</p>
  
  <p>I want to check if the mail I sent to someone, has a reply. In other words, if that person has replied to my mail.</p>
  
  <pre><code>sentboxFolder = 
  
  ns.GetDefaultFolder(Microsoft.Office.Interop.Outlook.OlDefaultFolders.olFolderSentbox);
  
  //So here if i access individual mail and check
  
  Outlook.MailItem mailItem = ( Outlook.MailItem ) sentboxFolder.Items[1];
  </code></pre>
  
  <p>Now, if i took the PR_LAST_VERB_EXECUTED property of this mail item, what would it return if the mail has a reply sitting somewhere in my inbox and what would it return if noone replied to my mail ?</p>
  
  <p>Also,</p>
  
  <p>I'm not sure if I'd be able to implement this properly, can someone refer me to some examples where PR_LAST_VERB_EXECUTED is used?</p>
  
  <p>Thanks in advance</p>