This isn't a project unique in his genre. There are also others like Mailu[0] that, although different in the implementation (Docker containers abstracting away

This isn't a project unique in his genre. There are also others like Mailu[0] that, although different in the implementation (Docker containers abstracting away the hard parts of deploying "traditional" components) share the spirit of having a self-contained project that is easy to deploy. Are there some specific reasons why you didn't go the Mailu (or some similar project) way? I'm asking because, every now and then, I have the itch of deploying my own mail server to be used for my side projects (nothing commercial), so if you have an opinion on those projects I would be curious to hear it. [0] mailu.io