It is unlikely that built-in email encryption will ever be available in Gmail
> While it is possible to encrypt certain emails in Gmail with GPG, Google can still read all email meta-data such as email addresses and subject lines. Better use a Gmail alternative that encrypts your entire mailbox and contacts automatically.<p>This is nonsense. Any email service will be able to see the recipients (and senders) of your messages, because that's how email works. Subject lines too, again, because that's how email works.<p>E2E encryption of email is a good thing, GPG is hard. These things have be true forever.