I think StartMail gets overlooked as an email provider.
They are even on PrivacyTools.io
https://www.privacytools.io/providers/email/#startmail
@x they have a strict criteria. I tested Migadu against it and it failed for a few reasons:
- Doesn't support DANE
- No valid MTA-STS and TLS-RPT policy
- googletagmanager.com is present on the homepage
I still use them, and have contacted them about these issues, though they haven't gotten back.
They used to list Runbox, though it was removed after they changed the criteria.
@freddyym Interesting, thanks!