Comment by robinhoodexe

I've been using mailbox.org for 5 years and like it very much. Cost some 3 EUR per month (actually there's a 50% discount this week).

Dead simple email that just works. Their webUI is fine, but I almost exclusively use it on iOS or macOS with the default mail app. They also have some other features (calendar, office suite, video calls) that I don't use. I really like the option to create up to 25 email aliases.