I really wish Google would be clearer about what this means. This allows DarwinMail to create your email (when you use the compose functionality), modify your email, and send your email (when you click the send button). This also allows you to update and save drafts.
https://developers.google.com/gmail/api/auth/scopes
I hope that helps alleviate your worries somewhat :)
We have reminder functionality available! It is part of my everyday routine too!
Could you suggest a way to allow people to use DarwinMail while 'maintaining privacy'? I am learning exactly what you would like here :)