http://lpoaj76nfopd5lpinbskyqtroppamrzhhay3g4vvjm75st6ger34lbyd.onion/posts/2020/08/email-sucks.html
But, perhaps, spam is not an issue, and you just want to use it for private, end to end encrypted correspondence, and you do not care about self hosting? Well then, PGP/GPG seems great, doesn't it? Well, not so fast. It does not offer encryption of most metadata, such as sender and receiver, like email, it is held back by backwards compatibility, and it has tons of other issues, as described in this latacora post , for example.