It's honestly why I'm paying for it.
I also pay for email for the same reason. :)
For email, Fastmail is just excellent. I use their email aliases function a lot. So you can one-click generate an email to use when you sign up on a service and when you don't use that service anymore, delete the email address.
Makes it impossible for them to sign you up on advertising lists since you can just delete that email address if they annoy you.