1. Tap the Nav icon at the left of your navigation bar to open the Navigation Drawer.
2. Tap the Gear icon at the bottom of the Navigation Drawer to bring up Settings.
3. Tap Mail.
4. Tap Notifications at the top of the screen.
5. Tap Smart Notifications.
6. Tap Specific Folders.
7. Tap the Folder name(s) to deselect the folders. The Smart Notification will automatically deactivate.
Note: To re-enable Notifications to all folders once again, simply disable the Notifications from specific folders slider at the top of the screen.