Comment by efreak
3 days ago
Dynamic DNS clients are a thing. I host a bunch of stuff on my domain, the only issues I have are related to having a local address when I'm at home. I don't host game servers much, but I hosted terraria (tshock) for few a few years.
You can't really host email with dynamic DNS. At least not well. You need stable MX records, you need various other DNS records for SPF/DMARC/DKIM, and most of all you need an IP address with a positive reputation. If you go changing your MX record constantly, you're not going to be receiving email reliably, if at all.
It's fine for casual game servers for friends.