Hello, Although this is offtopic I will respond to it quickly.
I wouldn't say protonmail is a good idea, in my opinion everything they stand for is a lie. Firstly, email is not secure, some email servers still do not use TLS, so a "privacy focused" mail server isn't always beneficial. Secondly, if you don't use GPG proton can still read your emails, you have their promise they won't (Google promises it doesn't abuse your data either), and their GPG encryption requires you to give their client your GPG private key, not secure or private in the slightest (IMO). So you go to use your own client, and GPG encryp... oh they block IMAP/SMTP unless you pay for it. IMO, pick any mail provider which gives you a free email, has good spam rating, and gives your IMAP/SMTP access, and then use GPG to encrypt emails. If you want to be truly paranoid you can use something like https://posteo.de/en (note: I have never used them, just heard good things from others about them, they are also paid). As for self hosting (like I do), it is rather painful. Setup is annoying enough, but the worst part is being filtered into spam by every major email provider despite having spf, dkim, dmarc and rDNS with good IP reputation, simply because you are a small mail server and not one of the whitelisted big mail servers, its a headache. Hope this helps. Take care, -- Polarian GPG signature: 0770E5312238C760 Jabber/XMPP: polar...@icebound.dev