I use mailbox.org. On the topic of crypro, they have a fairly neat feature where you can give them a PGP public key and they'll encrypt all plaintext messages y

I use mailbox.org. On the topic of crypro, they have a fairly neat feature where you can give them a PGP public key and they'll encrypt all plaintext messages you receive to your public key. Not perfect of course, but it means that your long-term message storage is encrypted on the server. My only complaint with mailbox.org is that their 2FA system is really silly (you append your 2FA token to your passphrase, and there's no equivalent to Google's "app passwords").