Earlier quoted context omitted.
The cloud ultimately is someone else's computer, abstracted away to feel good. Data loss occurs in the cloud too and it sucks. It's also dangerous to say because you don't understand or see the value in something, that there possibly can't be any. Today's home connectivity + LTE fail over is reasonable to rely on. One could put a vps proxy in front of it if you really wanted. Running a home appliance is not out of th…
So what happens when you are traveling and there's a power issue or maybe some other connection issue that knocks this box out of service? Looks like you'll be stuck without email until you can physically get back to this box. This isn't a scenario you worry about with regular email. The challenge with email is that once you give out any mail address to people, you are on the hook to ensure that it's a functional add…
Not sure if you have spent any time around data centres, but they have to deal with power outages just the same. My power doesn't go out often, how about you?
Backup batteries (UPS') are trivially cheap as well, especially for equipment that sips electricity. Everyone should have one on their internet connection and wifi anyways. A $200 ups can give a few hours of power.
Your offsite worries could be alleivated by mirroring 2 devices, or mirror one to a cloud. Realistically, incoming email is queued for redelivery from 24 to 48 hours until it can be delivered. Beyond that, outgoing email can be sent thru a third party temporarily (migadu, etc). Next question?
Migrating email isn't hard. Most services have import feature. I suspect you may not have done this before.