I use Mailbox.org. My only regret is not buying my own domain name for it ahead of time in case Germany started doing things I wasn’t cool with.

I’ve been sufficiently satisfied with their service. Sometimes emails take a bit of time to receive, like 10 or so minutes. That’s about it.

10 minutes? The 30-60 seconds Runbox (Norwegian) takes to deliver 2FA or other types of confirmation emails already bug me. Not enough time to do something else, plenty of time to overthink my choice in email provider.

Privately (Runbox is my employer's provider) I run my own server and desktop notifications of new mail are often faster than the page loads where it was triggered. Maybe I'm spoiled.

It takes 10 minutes because they use greylisting. You can also turn it off if you don't mind getting a bit more spam.

https://kb.mailbox.org/display/MBOKBEN/Customizing+your+mail...

Ten minutes seems problematic. I use a few services where the MFA codes I receive (via email!) expire in only 5 minutes.

Same, I paid for 3 years upfront. I love FastMail UI and nothing comes close to it. :-(

Tutanota and Mailbox.org are 2 good alternatives.

I've been using Mailbox.org for a few years.

protonmail?