I guess the only real purpose of a raspberry pi would be to turn it into an light email server, but even a raspberry pi zero is too much powerful for my taste.

I guess the only real purpose of a raspberry pi would be to turn it into an light email server, but even a raspberry pi zero is too much powerful for my taste. I'm still not willing to pay to host my emails, and I don't have anything sensitive enough that warrants something else than gmail, even if I really want to. Also I really wish there were more ways to allow me to "trust" certain domains and to filter mail manually, on top of the usual spam filters. Gmail filters are nice but their UX could be better. Also there should be ways to give my email address in a way that is automatically trusted. For example, some optional passcode in my email address would look like: john.WORK9643@domain.thing john.GIRAFFEBANANA@domain.thing This already exists but is not mainstream. The email protocol could also have a "friend request" feature to "ask the email client" to whitelist a domain. That way, no email would land in the inbox unless it's from a domain the user approved. Those "trust request" would discourage spammers or websites you give your address to you unsolicited emails.