Elevating Performance and Flexibility
We are excited to announce the release of Stalwart Mail Server v0.5.0. As we approach the end of the year, this significant update marks a major advancement in our journey to provide a robust, efficient, and versatile mail server solution. This latest version incorporates a range of performance enhancements, storage layer improvements, and new features, designed to elevate your email server experience.
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.
I don’t think it’s you, it generally is a bad practice to have multiple processes inside a container. It usually defeats most of the isolation, introduces problems with handling zombie processes (therefore you need an init) and restarting tools when they crash (then you need something like supervisord, which I guess this image might use - I didn’t check). Each software adds dependencies, which can conflict (again defeating the idea of containers), and of course CVEs. Then you have a problem with users etc.
So yeah, containers are generally not meant to be used this way. The project might be cool but I would be very uncomfortable running it like this, especially if that’s going to be my primary email, with all the password resetting capabilities etc.
Does it run multiple processes inside the container? Looks like the entrypoint only launchs one.
Reading the Dockerfile in their repo, it’s simply a clean debian:slim with four compiled rust binaries placed into it. There’s no services, no supervisord, nothing except the mail server binaries themselves.