Have you ever wished it were possible to delete an email from a recipient’s inbox days, weeks or months after it was sent? If so and you’re a Gmail or G Suite user, it looks as if Google might be about to enable this kind of ‘self-destructing’ email feature on its platform.

https://nakedsecurity.sophos.com/2018/04/17/gmails-new-confidential-mode-wont-be-completely-private/