Email Relay OR remotely mounted user/backup data.
I’ve read a few email solutions that allow you to host your email at your home using email relays at Amazon or wherever. I thought the other alternative would be to set up a WireGuard link between my home and my MIAB server and some kind of network mount with fs-cache to mount the user data directory remotely from my house.
If a relay is possible
How secure would the relay be able to view the email contents? I know that email used to be simply plaintext leaving all emails available to MITM attacks. However, I’ve read that email now is somewhat encrypted, granted the metadata is not.
If remotely mounted data is feasible
Would it be painfully slow, or would it be a reasonable option?