If it's running on a VPS on AWS or somewhere, it's still subject to the provider tampering with it. Secondly, PGP is not nearly widespread enough to be conside

If it's running on a VPS on AWS or somewhere, it's still subject to the provider tampering with it. Secondly, PGP is not nearly widespread enough to be considered secure and additionally provides no anonymity properties which in this day and age should be the focus of any secure e-mail provider. Additionally, running your own email server also reduces the anonymity to basically null and leaves you with a weak pseudonymity at best.