I am placing careful (nevermind that, this seems very nice) interest in this.
Few questions (since I’m on mobile, and it’ll take me a while to get back to my computer to find out for myself):
How does managing sieve work with this?
Does it play along with rspamd?
Is it tested on x64_64 only?
Does it support PGP, can email be encrypted-at-rest using this?
Is there a way to run this behind a reverse proxy that handles the certificates? I’m not too keen on dealing with two separate sets of those in separate places.