@TobiasFrech@ijug.social @jwildeboer@social.wildeboer.net @ArneBab@rollenspiel.social I use #Exim , which 30 years ago was fantastically easy to set up compared to #sendmail . There's other mail transports that are even easier these days to setup with all the modern tweaks. I've heard good reports about #mailcow but I've not tried it myself.