Emails from Senders or Domains that are Blocked within TypeApp or marked as spam on your email provider, will be sent to the Junk Folder, also known as Spam or Bulk. You can delete all of them in a Bulk action, just like the Trash folder.

You can View your Folders using: Swipe from left edge or by tapping the top left corner icon, and choosing the desired account, then choosing Junk / Spam folder.