I looked at this, it looks pretty rudimentary compared to something like Mailcow-dockerized which has a full docker stack with clamAV, sieve, etc that you can add Roundcube on to, and has worked very well for me for years. There are precious few jmap clients out there so that’s not much of a consideration really. I’d rather have rspamd itself rather than their fork of it because then I can depend on the original’s documentation, because their documentation doesn’t seem very comprehensive comparatively.

Plus, I’d rather have a stack of separate docker containers rather than a single container that munges it all together, but maybe that’s not a big deal. I like to let Postgres manage the postgres container image and not put another layer in there.