5 days, 5 killer tech tips Even in today’s connected world, there will be times when you find yourself stuck offline. But there’s no need to panic in these situations; you can still read, search, and reply to your Gmail messages without an internet connection. We'll also recommend a way for you to send messages at scheduled times and postpone incoming emails.
https://www.techspot.com/article/1317-gmail-offline-email-scheduling/