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?

Yes and no. AFAIK when coding assembler for these chips you use CISC-instructions but they get translated into RISC-instructions by a hardcoded mikroprocessing-unit (not sure about the real term). So the processor itself gets RISC-instructions.

IIRC adopting the Euro (and changing the currency oc a country in general) costs a huge amount of money. Additionally the brits probably out a lot of pride in their currency, so the leap from “we’re so great we don’t need the EU and even are better off ourselves” to “we not only need the EU but the Euro as well” is even farther as just adopting a new currency or just reentering.