My recommendation is posteo.de. It’s a lot cheaper than Fastmail if you need multiple mailboxes. Browse through the site and read through the company’s values. A bonus is its focus on being better for the environment.
One point to note about Posteo is that it doesn’t allow custom domains (but there are plenty of Posteo domains to choose from). I don’t see this as a disadvantage for my use though.
Other recommendations are Runbox and mailbox.org, both being near the price of Posteo while also allowing custom domains for certain plans.
Posteo, Runbox and Mailbox.org provide IMAP support. So you’re not stuck with the provider if you want to move your mails out (unlike ProtonMail, which has an IMAP bridge only for paid accounts and is a bit more cumbersome to install/use than the alternative of just picking any email client of your preference).
One point to note about Posteo is that it doesn’t allow custom domains (but there are plenty of Posteo domains to choose from). I don’t see this as a disadvantage for my use though.
Other recommendations are Runbox and mailbox.org, both being near the price of Posteo while also allowing custom domains for certain plans.
Posteo, Runbox and Mailbox.org provide IMAP support. So you’re not stuck with the provider if you want to move your mails out (unlike ProtonMail, which has an IMAP bridge only for paid accounts and is a bit more cumbersome to install/use than the alternative of just picking any email client of your preference).