For example, something that is too complex for your comfort level, a security concern, or maybe your hardware can’t keep up with the service’s needs?
Nothing really. I’m comfortable hosting mail, chat, my passwords and important documents. However:
Hosting personal/important data for other people is a bit intimidating because you kind of guarantee for safety and availability.
And services that are likely to be misused for illegal stuff and would be too bothersome. Otherwise i might host an anonymous spam eating email-forwarder, maybe a tor exit-node and a forum where adults can practise free speech. But that kind of stuff just attracts the wrong kind of idiots.
Hosting an email server is pretty sure a magnet for half the Chinese IP range… So I would refrain from hosting that myself.
I figured email would be a common theme. I’m just starting to dip my toes into all of this, so an email server is not on my to-do list (and may never be).
Google and other large scale providers have intentionally made it very difficult to self host your own email. It’s generally not considered a wise move these days and is very difficult to maintain.
Why do you say so? I’m not an expert in the fields, but isn’t a mail server pretty much the same as 20 years ago plus DKIM and SPF?
Minecraft. When I started out it was fine but when I began to get regular visitors I got DDOSed for days on end and people poking me for ssh access. Never again.
