When I imagine a world with an easy to use encrypted email system such that anyone could transparently use, I cant avoid imagining either a world sunken in spam

When I imagine a world with an easy to use encrypted email system such that anyone could transparently use, I cant avoid imagining either a world sunken in spam, or a world where each individual no matter their computer skills" would have to maintain anti-spam systems. So we are back to square one regarding mass adoption...