lugubris

How does an HTTPS proxy work? will it be like how cloudflare does https with websites (mitm)?

Not going to happen overnight and even then technically they cannot access your emails because only you hold the password to private keys (if you trust they encrypt your emails with your public key before storing). I prefer keeping my emails local so pop does the job.

Google can access your emails but something like protonmail can't (if you trust them to encrypt your emails).