Thanks for the long answer!

I haven’t heard of most of your abbreviations/term till now so I guess this will be one of the bigger journeys through the world of IT :)

I do have to say for the purpose of tinkering I love these bigger projects because you learn so much on the way. Now having read your answer I am even more exited to try it out :D

Are there any good recources on how to host you e-mail-server?

I guess slapping it on my local raspberry pi wouldn’t be enough no? So you probably need a quite sophisticated setup so that there are no downtimes?

There is a company in switzerland (i think?) that does it. So the employees vote on whos gonna be boss for the next year and whos gonna get hired and all that stuff, not just voting out.

I have seen a documentary about it and they all were VERY happy to work in that enrivonment