Soverin
Netherlands
Dutch email hosting with your own domain, built around privacy and no advertising
European Alternative to:

Soverin is a Dutch email provider founded in Amsterdam that lets you host email under your own custom domain. It was built for people who want a clean, personal email address without handing their inbox over to an advertising platform.
The service is run as a small, independent company in the Netherlands, which means it falls under Dutch and EU privacy law. There are no ads, no tracking, and no scanning of your messages to build a profile. You pay a flat fee and get a mailbox that behaves like yours.
It works with standard email clients over IMAP and SMTP, so you can use whatever app you already use on desktop or mobile. There is a webmail interface if you need it, but the product does not try to lock you into a proprietary client.