Https://purelymail.com/ https://mxroute.com/ https://www.vfemail.net/ https://runbox.com/ I know this because I have spent time looking the past week for getting off Outlook.com. I've basically settled on Runbox.com as it seems to be the most established and stable. - Source: Hacker News / 4 months ago

Runbox for me. They let you use your own domain - just point your MX records to their servers. Source: about 1 year ago

My phone is de-Googled, and I pay for my email service from Runbox. Source: about 1 year ago

I recommend Runbox. I've been with them for a few years now, with absolutely no complaints. Reliable, flexible, and nicely priced. And based in Europe! https://runbox.com/. - Source: Hacker News / over 1 year ago

I use https://runbox.com/ based in Norway. - Source: Hacker News / almost 2 years ago

You could solve that problem by using several different domains. I mean you can get a domain for just a couple of bucks per year. You can even get anonymous domains (not needing to use your personal data to register them), with companies like orangewebsite.com, anonymousspeech.com, nja.la, etc. I personally have been using orangewebsite for years and I'm super happy with them, my domains are registered in their... Source: over 2 years ago