@jwildeboer
I do this for 17 years now with now 5 domains and I can confirm: Beyond initial setup it is low maintenance. My biggest obstacle so far was getting my smtp host whitelisted by the Deutsche Telekom because although they will always send out mails to whereever your MX record points to, they rightout refuse accepting mails via SMTP from server IPs they don't have whitelisted. And their process to get whitelisted is questionable or shitty, depending on how hardass the sysadmin is, who takes your ticket. I was lucky the first time and now it's impossible to move the service to a new server ip because the person who took my ticket just was like "FU, bro!"
@homelab
Papa, Katzen, AuDHS + #notjustsad. IT gibts auch, Elektronikgebastel+Nerfguns. Und Musik. Metalhead, Elektrokram. Und Dingens, hier... mist, vergessen.