> not just to and from but also the subject line Subject is hidden in newer software e.g. Enigmail and K9 (it's moved to encrypted part and replaced with a pla

> not just to and from but also the subject line Subject is hidden in newer software e.g. Enigmail and K9 (it's moved to encrypted part and replaced with a placeholder see https://github.com/autocrypt/memoryhole https://github.com/autocrypt/memoryhole).