title: Getting unread count in Sent Folder using Google Apps Script - GMail
body: <p>Is there a way to get Unread Mail count in Sent Folder? </p>
  
  <p>Basically, the feature I want is: When I reply to a message in mailing list that's filtered and doesn't pass my INBOX, I want all the subsequent replies to be reaching my INBOX. </p>
  
  <p>The way I'm trying to accomplish is that if I see a Unread Mail in Sent folder, that means that there is a new mail in a thread I was involved. I'm saying this because I see those mails as unread when I click "Sent" in Gmail's web interface.</p>
  
  <p>So, is there a way to get unread count for a system label?</p>
  
  <p>Dirty way: One way I could accomplish this is creating a filter that selects all mails that has "from:" as my address and use that to get what I want. But, this way I'm creating a duplicate of which I don't feel good about!</p>