I just went looking for an email I recently sent from gmail. Searching the “Sent” folder, I discovered that the newest one in there was from June, 2016. I know I’ve sent or replied to many emails since then, so where did they go? Did I inadvertently change some setting? Can you help me recover them or at least tell me how to change the settings so I can keep a record of what I send out - like it seemingly used to?