Encryption would be helpful but if the government compels your email provider to hand over your stored emails or just email headers they can still get a lot of

Encryption would be helpful but if the government compels your email provider to hand over your stored emails or just email headers they can still get a lot of information about you Exactly, this the line that the government has currently been using, that they only store "metadata" about communications and not the messages themselves, so encryption would no real difference.